RFC2925
Network Working Group K. White Request for Comments: 2925 IBM Corp. Category: Standards Track September 2000
Definitions of Managed Objects for Remote Ping, Traceroute, and
Lookup Operations
Status of this Memo
This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2000). All Rights Reserved.
Abstract
This memo defines Management Information Bases (MIBs) for performing remote ping, traceroute and lookup operations at a remote host. When managing a network it is useful to be able to initiate and retrieve the results of ping or traceroute operations when performed at a remote host. A Lookup capability is defined in order to enable resolving of either an IP address to an DNS name or an DNS name to an IP address at a remote host.
Currently, there are several enterprise-specific MIBs for performing remote ping or traceroute operations. The purpose of this memo is to define a standards-based solution to enable interoperability.
Contents
- 1 Introduction
- 2 The SNMP Network Management Framework
- 3 Structure of the MIBs
- 4 Ping MIB
- 5 Traceroute MIB
- 6 Lookup MIB
- 7 Definitions
- 8 DISMAN-PING-MIB
- 9 DISMAN-TRACEROUTE-MIB
- 10 DISMAN-NSLOOKUP-MIB
- 11 Security Considerations
- 12 Intellectual Property
- 13 Acknowledgments
- 14 References
- 15 Author's Address
Introduction
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC 2119, reference [13].
This document is a product of the Distributed Management (DISMAN) Working Group. Its purpose is to define standards-based MIB modules for performing specific remote operations. The remote operations defined by this document consist of the ping, traceroute and lookup functions.
Ping and traceroute are two very useful functions for managing networks. Ping is typically used to determine if a path exists between two hosts while traceroute shows an actual path. Ping is usually implemented using the Internet Control Message Protocol (ICMP) "ECHO" facility. It is also possible to implement a ping capability using alternate methods, some of which are:
o Using the UDP echo port (7), if supported.
This is defined by RFC 862 [2].
o Timing an SNMP query.
o Timing a TCP connect attempt.
In general, almost any request/response flow can be used to generate a round-trip time. Often many of the non-ICMP ECHO facility methods stand a better chance of yielding a good response (not timing out for
example) since some routers don't honor Echo Requests (timeout situation) or they are handled at lower priority, hence possibly giving false indications of round trip times.
It must be noted that almost any of the various methods used for generating a round-trip time can be considered a form of system attack when used excessively. Sending a system requests too often can negatively effect its performance. Attempting to connect to what is supposed to be an unused port can be very unpredictable. There are tools that attempt to connect to a range of TCP ports to test that any receiving server can handle erroneous connection attempts.
It also is important to the management application using a remote ping capability to know which method is being used. Different methods will yield different response times since the protocol and resulting processing will be different. It is RECOMMENDED that the ping capability defined within this memo be implemented using the ICMP Echo Facility.
Traceroute is usually implemented by transmitting a series of probe packets with increasing time-to-live values. A probe packet is a UDP datagram encapsulated into an IP packet. Each hop in a path to the target (destination) host rejects the probe packet (probe's TTL too small) until its time-to-live value becomes large enough for the probe to be forwarded. Each hop in a traceroute path returns an ICMP message that is used to discover the hop and to calculate a round trip time. Some systems use ICMP probes (ICMP Echo request packets) instead of UDP ones to implement traceroute. In both cases traceroute relies on the probes being rejected via an ICMP message to discover the hops taken along a path to the final destination. Both probe types, UDP and ICMP, are encapsulated into an IP packet and thus have a TTL field that can be used to cause a path rejection.
Implementations of the remote traceroute capability as defined within this memo SHOULD be done using UDP packets to a (hopefully) unused port. ICMP probes (ICMP Echo Request packets) SHOULD NOT be used. Many PC implementations of traceroute use the ICMP probe method, which they should not, since this implementation method has been known to have a high probability of failure. Intermediate hops become invisible when a router either refuses to send an ICMP TTL expired message in response to an incoming ICMP packet or simply tosses ICMP echo requests altogether.
The behavior of some routers not to return a TTL expired message in response to an ICMP Echo request is due in part to the following text extracted from RFC 792 [20]:
"The ICMP messages typically report errors in the processing of datagrams. To avoid the infinite regress of messages about messages etc., no ICMP messages are sent about ICMP messages."
Both ping and traceroute yield round-trip times measured in milliseconds. These times can be used as a rough approximation for network transit time.
The Lookup operation enables the equivalent of either a gethostbyname() or a gethostbyaddr() call being performed at a remote host. The Lookup gethostbyname() capability can be used to determine the symbolic name of a hop in a traceroute path.
Consider the following diagram:
+--------------------------------------------------------------------+ | | | Remote ping, traceroute, Actual ping, traceroute, | | +-----+or Lookup op. +------+or Lookup op. +------+ | | |Local|---------------->|Remote|---------------->|Target| | | | Host| | Host | | Host | | | +-----+ +------+ +------+ | | | | | +--------------------------------------------------------------------+
A local host is the host from which the remote ping, traceroute, or Lookup operation is initiated using an SNMP request. The remote host is a host where the MIBs defined by this memo are implemented that receives the remote operation via SNMP and performs the actual ping, traceroute, or lookup function.
The SNMP Network Management Framework
The SNMP Management Framework presently consists of five major components:
o An overall architecture, described in RFC 2571 [7].
o Mechanisms for describing and naming objects and events for the
purpose of management. The first version of this Structure of Management Information (SMI) is called SMIv1 and described in STD 16, RFC 1155 [14], STD 16, RFC 1212 [15] and RFC 1215 [16]. The second version, called SMIv2, is described in STD 58, RFC 2578 [3], STD 58, RFC 2579 [4] and STD 58, RFC 2580 [5].
o Message protocols for transferring management information. The
first version of the SNMP message protocol is called SNMPv1 and described in STD 15, RFC 1157 [1]. A second version of the SNMP message protocol, which is not an Internet standards track protocol, is called SNMPv2c and described in RFC 1901 [17] and RFC 1906 [18]. The third version of the message protocol is called SNMPv3 and described in RFC 1906 [18], RFC 2572 [8] and RFC 2574 [10].
o Protocol operations for accessing management information. The
first set of protocol operations and associated PDU formats is described in STD 15, RFC 1157 [1]. A second set of protocol operations and associated PDU formats is described in RFC 1905 [6].
o A set of fundamental applications described in RFC 2573 [9] and
the view-based access control mechanism described in RFC 2575 [11].
Managed objects are accessed via a virtual information store, termed the Management Information Base or MIB. Objects in the MIB are defined using the mechanisms defined in the SMI.
This memo specifies MIB modules that are compliant to the SMIv2. A MIB conforming to the SMIv1 can be produced through the appropriate translations. The resulting translated MIB must be semantically equivalent, except where objects or events are omitted because no translation is possible (use of Counter64). Some machine readable information in SMIv2 will be converted into textual descriptions in SMIv1 during the translation process. However, this loss of machine readable information is not considered to change the semantics of the MIB.
Structure of the MIBs
This document defines three MIB modules:
o DISMAN-PING-MIB
Defines a ping MIB.
o DISMAN-TRACEROUTE-MIB
Defines a traceroute MIB.
o DISMAN-NSLOOKUP-MIB
Provides access to the resolver gethostbyname() and gethostbyaddr() functions at a remote host.
The ping and traceroute MIBs are structured to allow creation of ping or traceroute tests that can be set up to periodically issue a series of operations and generate NOTIFICATIONs to report on test results. Many network administrators have in the past written UNIX shell scripts or command batch files to operate in fashion similar to the functionality provided by the ping and traceroute MIBs defined within this memo. The intent of this document is to acknowledge the importance of these functions and to provide a standards-based solution.
Ping MIB
The DISMAN-PING-MIB consists of the following components:
o pingMaxConcurrentRequests
o pingCtlTable
o pingResultsTable
o pingProbeHistoryTable
pingMaxConcurrentRequests
The object pingMaxConcurrentRequests enables control of the maximum number of concurrent active requests that an agent implementation supports. It is permissible for an agent either to limit the maximum upper range allowed for this object or to implement this object as read-only with an implementation limit expressed as its value.
pingCtlTable
A remote ping test is started by setting pingCtlAdminStatus to enabled(1). The corresponding pingCtlEntry MUST have been created and its pingCtlRowStatus set to active(1) prior to starting the test. A single SNMP PDU can be used to create and start a remote ping test. Within the PDU, pingCtlTargetAddress should be set to the target host's address (pingCtlTargetAddressType will default to ipv4(1)), pingCtlAdminStatus to enabled(1), and pingCtlRowStatus to createAndGo(4).
The first index element, pingCtlOwnerIndex, is of type SnmpAdminString, a textual convention that allows for use of the SNMPv3 View-Based Access Control Model (RFC 2575 [11], VACM) and allows a management application to identify its entries. The send index, pingCtlTestName (also an SnmpAdminString), enables the same management application to have multiple requests outstanding.
Using the maximum value for the parameters defined within a pingEntry can result in a single remote ping test taking at most 15 minutes (pingCtlTimeOut times pingCtlProbeCount) plus whatever time it takes to send the ping request and receive its response over the network from the target host. Use of the defaults for pingCtlTimeOut and pingCtlProbeCount yields a maximum of 3 seconds to perform a "normal" ping test.
A management application can delete an active remote ping request by setting the corresponding pingCtlRowStatus object to destroy(6).
The contents of the pingCtlTable is preserved across reIPLs (Initial Program Loads) of its agent according the values of each of the pingCtlStorageType objects.
pingResultsTable
An entry in the pingResultsTable is created for a corresponding pingCtlEntry once the test defined by this entry is started.
pingProbeHistoryTable
The results of past ping probes can be stored in this table on a per pingCtlEntry basis. This table is initially indexed by pingCtlOwnerIndex and pingCtlTestName in order for the results of a probe to relate to the pingCtlEntry that caused it. The maximum number of entries stored in this table per pingCtlEntry is determined by the value of pingCtlMaxRows.
An implementation of this MIB will remove the oldest entry in the pingProbeHistoryTable to allow the addition of an new entry once the number of rows in the pingProbeHistoryTable reaches the value specified by pingCtlMaxRows. An implementation MUST start assigning pingProbeHistoryIndex values at 1 and wrap after exceeding the maximum possible value as defined by the limit of this object ('ffffffff'h).
Traceroute MIB
The DISMAN-TRACEROUTE-MIB consists of the following components:
o traceRouteMaxConcurrentRequests
o traceRouteCtlTable
o traceRouteResultsTable
o traceRouteProbeHistoryTable
o traceRouteHopsTable
traceRouteMaxConcurrentRequests
The object traceRouteMaxConcurrentRequests enables control of the maximum number of concurrent active requests that an agent implementation supports. It is permissible for an agent either to limit the maximum upper range allowed for this object or to implement this object as read-only with an implementation limit expressed as its value.
traceRouteCtlTable
A remote traceroute test is started by setting traceRouteCtlAdminStatus to enabled(1). The corresponding traceRouteCtlEntry MUST have been created and its traceRouteCtlRowStatus set to active(1) prior to starting the test. A single SNMP PDU can be used to create and start a remote traceroute test. Within the PDU, traceRouteCtlTargetAddress should be set to the target host's address (traceRouteCtlTargetAddressType will default to ipv4(1)), traceRouteCtlAdminStatus to enabled(1), and traceRouteCtlRowStatus to createAndGo(4).
The first index element, traceRouteCtlOwnerIndex, is of type SnmpAdminString, a textual convention that allows for use of the SNMPv3 View-Based Access Control Model (RFC 2575 [11], VACM) and allows a management application to identify its entries. The second index, traceRouteCtlTestName (also an SnmpAdminString), enables the same management application to have multiple requests outstanding.
Traceroute has a much longer theoretical maximum time for completion than ping. Basically 42 hours and 30 minutes (the product of traceRouteCtlTimeOut, traceRouteCtlProbesPerHop, and traceRouteCtlMaxTtl) plus some network transit time! Use of the defaults defined within an traceRouteCtlEntry yields a maximum of 4 minutes and 30 seconds for a default traceroute operation. Clearly
42 plus hours is too long to wait for a traceroute operation to complete.
The maximum TTL value in effect for traceroute determines how long the traceroute function will keep increasing the TTL value in the probe it transmits hoping to reach the target host. The function ends whenever the maximum TTL is exceeded or the target host is reached. The object traceRouteCtlMaxFailures was created in order to impose a throttle for how long traceroute continues to increase the TTL field in a probe without receiving any kind of response (timeouts). It is RECOMMENDED that agent implementations impose a time limit for how long it allows a traceroute operation to take relative to how the function is implemented. For example, an implementation that can't process multiple traceroute operations at the same time SHOULD impose a shorter maximum allowed time period.
A management application can delete an active remote traceroute request by setting the corresponding traceRouteCtlRowStatus object to destroy(6).
The contents of the traceRouteCtlTable is preserved across reIPLs (Initial Program Loads) of its agent according to the values of each of the traceRouteCtlStorageType objects.
traceRouteResultsTable
An entry in the traceRouteResultsTable is created upon determining the results of a specific traceroute operation. Entries in this table relate back to the traceRouteCtlEntry that caused the corresponding traceroute operation to occur. The objects traceRouteResultsCurHopCount and traceRouteResultsCurProbeCount can be examined to determine how far the current remote traceroute operation has reached.
traceRouteProbeHistoryTable
The results of past traceroute probes can be stored in this table on a per traceRouteCtlEntry basis. This table is initially indexed by traceRouteCtlOwnerIndex and traceRouteCtlTestName in order for the results of a probe to relate to the traceRouteCtlEntry that caused it. The number of entries stored in this table per traceRouteCtlEntry is determined by the value of traceRouteCtlMaxRows.
An implementation of this MIB will remove the oldest entry in the traceRouteProbeHistoryTable to allow the addition of an new entry once the number of rows in the traceRouteProbeHistoryTable reaches the value of traceRouteCtlMaxRows. An implementation MUST start
assigning traceRouteProbeHistoryIndex values at 1 and wrap after exceeding the maximum possible value as defined by the limit of this object ('ffffffff'h).
traceRouteHopsTable
The current traceroute path can be stored in this table on a per traceRouteCtlEntry basis. This table is initially indexed by traceRouteCtlOwnerIndex and traceRouteCtlTestName in order for a traceroute path to relate to the traceRouteCtlEntry that caused it. A third index, traceRouteHopsHopIndex, enables keeping one traceRouteHopsEntry per traceroute hop. Creation of traceRouteHopsTable entries is enabled by setting the corresponding traceRouteCtlCreateHopsEntries object to true(1).
Lookup MIB
The DISMAN-NSLOOKUP-MIB consists of the following components:
o lookupMaxConcurrentRequests, and lookupPurgeTime
o lookupCtlTable
o lookupResultsTable
lookupMaxConcurrentRequests and lookupPurgeTime
The object lookupMaxConcurrentRequests enables control of the maximum number of concurrent active requests that an agent implementation is structured to support. It is permissible for an agent either to limit the maximum upper range allowed for this object or to implement this object as read-only with an implementation limit expressed as its value.
The object lookupPurgeTime provides a method for entries in the lookupCtlTable and lookupResultsTable to be automatically deleted after the corresponding operation completes.
lookupCtlTable
A remote lookup operation is initiated by performing an SNMP SET request on lookupCtlRowStatus. A single SNMP PDU can be used to create and start a remote lookup operation. Within the PDU, lookupCtlTargetAddress should be set to the entity to be resolved (lookupCtlTargetAddressType will default to ipv4(1)) and lookupCtlRowStatus to createAndGo(4). The object lookupCtlOperStatus
can be examined to determine the state of an lookup operation. A management application can delete an active remote lookup request by setting the corresponding lookupCtlRowStatus object to destroy(6).
An lookupCtlEntry is initially indexed by lookupCtlOwnerIndex, which is of type SnmpAdminString, a textual convention that allows for use of the SNMPv3 View-Based Access Control Model (RFC 2575 [11], VACM) and also allows for a management application to identify its entries. The lookupCtlOwnerIndex portion of the index is then followed by lookupCtlOperationName. The lookupCtlOperationName index enables the same lookupCtlOwnerIndex entity to have multiple outstanding requests.
The value of lookupCtlTargetAddressType determines which lookup function to perform. Specification of dns(16) as the value of this index implies that the gethostbyname function should be performed to determine the numeric addresses associated with a symbolic name via lookupResultsTable entries. Use of a value of either ipv4(1) or ipv6(2) implies that the gethostbyaddr function should be performed to determine the symbolic name(s) associated with a numeric address at a remote host.
lookupResultsTable
The lookupResultsTable is used to store the results of lookup operations. The lookupResultsTable is initially indexed by the same index elements that the lookupCtlTable contains (lookupCtlOwnerIndex and lookupCtlOperationName) but has a third index element, lookupResultsIndex (Unsigned32 textual convention), in order to associate multiple results with the same lookupCtlEntry.
Both the gethostbyname and gethostbyaddr functions typically return a pointer to a hostent structure after being called. The hostent structure is defined as:
struct hostent {
char *h_name; /* official host name */
char *h_aliases[]; /* list of other aliases */
int h_addrtype; /* host address type */
int h_length; /* length of host address */
char **h_addr_list; /* list of address for host */
};
The hostent structure is listed here in order to address the fact that a remote host can be multi-homed and can have multiple symbolic (DNS) names. It is not intended to imply that implementations of the DISMAN-LOOKUP-MIB are limited to systems where the hostent structure is supported.
The gethostbyaddr function is called with a host address as its parameter and is used primarily to determine a symbolic name to associate with the host address. Entries in the lookupResultsTable MUST be made for each host name returned. The official host name MUST be assigned a lookupResultsIndex of 1.
The gethostbyname function is called with a symbolic host name and is used primarily to retrieve a host address. Normally, the first h_addr_list host address is considered to be the primary address and as such is associated with the symbolic name passed on the call.
Entries MUST be stored in the lookupResultsTable in the order that they are retrieved. Values assigned to lookupResultsIndex MUST start at 1 and increase in order.
An implementation SHOULD NOT retain SNMP-created entries in the lookupTable across reIPLs (Initial Program Loads) of its agent, since management applications need to see consistent behavior with respect to the persistence of the table entries that they create.
Definitions
DISMAN-PING-MIB
DISMAN-PING-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE, Integer32,
Unsigned32, mib-2,
NOTIFICATION-TYPE, OBJECT-IDENTITY
FROM SNMPv2-SMI -- RFC2578
TEXTUAL-CONVENTION, RowStatus,
StorageType, DateAndTime, TruthValue
FROM SNMPv2-TC -- RFC2579
MODULE-COMPLIANCE, OBJECT-GROUP,
NOTIFICATION-GROUP
FROM SNMPv2-CONF -- RFC2580
InterfaceIndexOrZero -- RFC2863
FROM IF-MIB
SnmpAdminString
FROM SNMP-FRAMEWORK-MIB -- RFC2571
InetAddressType, InetAddress
FROM INET-ADDRESS-MIB; -- RFC2851
pingMIB MODULE-IDENTITY LAST-UPDATED "200009210000Z" -- 21 September 2000 ORGANIZATION "IETF Distributed Management Working Group" CONTACT-INFO
"Kenneth White
International Business Machines Corporation
Network Computing Software Division
Research Triangle Park, NC, USA
E-mail: [email protected]" DESCRIPTION "The Ping MIB (DISMAN-PING-MIB) provides the capability of controlling the use of the ping function at a remote host."
-- Revision history
REVISION "200009210000Z" -- 21 September 2000
DESCRIPTION
"Initial version, published as RFC 2925."
::= { mib-2 80 }
-- Textual Conventions
OperationResponseStatus ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"Used to report the result of an operation:
responseReceived(1) - Operation completes successfully.
unknown(2) - Operation failed due to unknown error.
internalError(3) - An implementation detected an error
in its own processing that caused an operation
to fail.
requestTimedOut(4) - Operation failed to receive a
valid reply within the time limit imposed on it.
unknownDestinationAddress(5) - Invalid destination
address.
noRouteToTarget(6) - Could not find a route to target.
interfaceInactiveToTarget(7) - The interface to be
used in sending a probe is inactive without an
alternate route existing.
arpFailure(8) - Unable to resolve a target address to a
media specific address.
maxConcurrentLimitReached(9) - The maximum number of
concurrent active operations would have been exceeded
if the corresponding operation was allowed.
unableToResolveDnsName(10) - The DNS name specified was
unable to be mapped to an IP address.
invalidHostAddress(11) - The IP address for a host
has been determined to be invalid. Examples of this
are broadcast or multicast addresses."
SYNTAX INTEGER {
responseReceived(1),
unknown(2),
internalError(3),
requestTimedOut(4),
unknownDestinationAddress(5),
noRouteToTarget(6),
interfaceInactiveToTarget(7),
arpFailure(8),
maxConcurrentLimitReached(9),
unableToResolveDnsName(10),
invalidHostAddress(11)
}
-- Top level structure of the MIB
pingNotifications OBJECT IDENTIFIER ::= { pingMIB 0 }
pingObjects OBJECT IDENTIFIER ::= { pingMIB 1 }
pingConformance OBJECT IDENTIFIER ::= { pingMIB 2 }
-- The registration node (point) for ping implementation types
pingImplementationTypeDomains OBJECT IDENTIFIER ::= { pingMIB 3 }
pingIcmpEcho OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Indicates that an implementation is using the Internet
Control Message Protocol (ICMP) 'ECHO' facility."
::= { pingImplementationTypeDomains 1 }
pingUdpEcho OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Indicates that an implementation is using the UDP echo
port (7)."
REFERENCE
"RFC 862, 'Echo Protocol'."
::= { pingImplementationTypeDomains 2 }
pingSnmpQuery OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Indicates that an implementation is an SNMP query to
calculate a round trip time."
::= { pingImplementationTypeDomains 3 }
pingTcpConnectionAttempt OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Indicates that an implementation is attempting to
connect to a TCP port in order to calculate a round
trip time."
::= { pingImplementationTypeDomains 4 }
-- Simple Object Definitions
pingMaxConcurrentRequests OBJECT-TYPE
SYNTAX Unsigned32
UNITS "requests"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The maximum number of concurrent active ping requests
that are allowed within an agent implementation. A value
of 0 for this object implies that there is no limit for
the number of concurrent active requests in effect."
DEFVAL { 10 }
::= { pingObjects 1 }
-- Ping Control Table
pingCtlTable OBJECT-TYPE
SYNTAX SEQUENCE OF PingCtlEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Defines the ping Control Table for providing, via SNMP,
the capability of performing ping operations at
a remote host. The results of these operations are
stored in the pingResultsTable and the
pingProbeHistoryTable."
- = { pingObjects 2 }
pingCtlEntry OBJECT-TYPE
SYNTAX PingCtlEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Defines an entry in the pingCtlTable. The first index
element, pingCtlOwnerIndex, is of type SnmpAdminString,
a textual convention that allows for use of the SNMPv3
View-Based Access Control Model (RFC 2575 [11], VACM) and allows an management application to identify its entries. The second index, pingCtlTestName (also an SnmpAdminString), enables the same management application to have multiple outstanding requests." INDEX { pingCtlOwnerIndex, pingCtlTestName } ::= { pingCtlTable 1 }
PingCtlEntry ::=
SEQUENCE {
pingCtlOwnerIndex SnmpAdminString,
pingCtlTestName SnmpAdminString,
pingCtlTargetAddressType InetAddressType,
pingCtlTargetAddress InetAddress,
pingCtlDataSize Unsigned32,
pingCtlTimeOut Unsigned32,
pingCtlProbeCount Unsigned32,
pingCtlAdminStatus INTEGER,
pingCtlDataFill OCTET STRING,
pingCtlFrequency Unsigned32,
pingCtlMaxRows Unsigned32,
pingCtlStorageType StorageType,
pingCtlTrapGeneration BITS,
pingCtlTrapProbeFailureFilter Unsigned32,
pingCtlTrapTestFailureFilter Unsigned32,
pingCtlType OBJECT IDENTIFIER,
pingCtlDescr SnmpAdminString,
pingCtlSourceAddressType InetAddressType,
pingCtlSourceAddress InetAddress,
pingCtlIfIndex InterfaceIndexOrZero,
pingCtlByPassRouteTable TruthValue,
pingCtlDSField Unsigned32,
pingCtlRowStatus RowStatus
}
pingCtlOwnerIndex OBJECT-TYPE SYNTAX SnmpAdminString (SIZE(0..32)) MAX-ACCESS not-accessible STATUS current DESCRIPTION "To facilitate the provisioning of access control by a security administrator using the View-Based Access Control Model (RFC 2575, VACM) for tables in which multiple users may need to independently create or modify entries, the initial index is used as an 'owner
index'. Such an initial index has a syntax of SnmpAdminString, and can thus be trivially mapped to a securityName or groupName as defined in VACM, in accordance with a security policy.
When used in conjunction with such a security policy all
entries in the table belonging to a particular user (or
group) will have the same value for this initial index.
For a given user's entries in a particular table, the
object identifiers for the information in these entries
will have the same subidentifiers (except for the 'column'
subidentifier) up to the end of the encoded owner index.
To configure VACM to permit access to this portion of the
table, one would create vacmViewTreeFamilyTable entries
with the value of vacmViewTreeFamilySubtree including
the owner index portion, and vacmViewTreeFamilyMask
'wildcarding' the column subidentifier. More elaborate
configurations are possible."
::= { pingCtlEntry 1 }
pingCtlTestName OBJECT-TYPE
SYNTAX SnmpAdminString (SIZE(0..32))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The name of the ping test. This is locally unique, within
the scope of an pingCtlOwnerIndex."
::= { pingCtlEntry 2 }
pingCtlTargetAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Specifies the type of host address to be used at a remote
host for performing a ping operation."
DEFVAL { unknown }
::= { pingCtlEntry 3 }
pingCtlTargetAddress OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Specifies the host address to be used at a remote host for
performing a ping operation. The host address type is
determined by the object value of corresponding
pingCtlTargetAddressType.
A value for this object MUST be set prior to transitioning
its corresponding pingCtlEntry to active(1) via
pingCtlRowStatus."
DEFVAL { H }
::= { pingCtlEntry 4 }
pingCtlDataSize OBJECT-TYPE
SYNTAX Unsigned32 (0..65507)
UNITS "octets"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Specifies the size of the data portion to be
transmitted in a ping operation in octets. A ping
request is usually an ICMP message encoded
into an IP packet. An IP packet has a maximum size
of 65535 octets. Subtracting the size of the ICMP
or UDP header (both 8 octets) and the size of the IP
header (20 octets) yields a maximum size of 65507
octets."
DEFVAL { 0 }
::= { pingCtlEntry 5 }
pingCtlTimeOut OBJECT-TYPE
SYNTAX Unsigned32 (1..60)
UNITS "seconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Specifies the time-out value, in seconds, for a
remote ping operation."
DEFVAL { 3 }
::= { pingCtlEntry 6 }
pingCtlProbeCount OBJECT-TYPE
SYNTAX Unsigned32 (1..15)
UNITS "probes"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Specifies the number of times to perform a ping
operation at a remote host."
DEFVAL { 1 }
::= { pingCtlEntry 7 }
pingCtlAdminStatus OBJECT-TYPE
SYNTAX INTEGER {
enabled(1), -- test should be started
disabled(2) -- test should be stopped
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Reflects the desired state that a pingCtlEntry should be
in:
enabled(1) - Attempt to activate the test as defined by
this pingCtlEntry.
disabled(2) - Deactivate the test as defined by this
pingCtlEntry.
Refer to the corresponding pingResultsOperStatus to
determine the operational state of the test defined by
this entry."
DEFVAL { disabled }
::= { pingCtlEntry 8 }
pingCtlDataFill OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..1024))
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The content of this object is used together with the
corresponding pingCtlDataSize value to determine how to
fill the data portion of a probe packet. The option of
selecting a data fill pattern can be useful when links
are compressed or have data pattern sensitivities. The
contents of pingCtlDataFill should be repeated in a ping
packet when the size of the data portion of the ping
packet is greater than the size of pingCtlDataFill."
DEFVAL { '00'H }
::= { pingCtlEntry 9 }
pingCtlFrequency OBJECT-TYPE
SYNTAX Unsigned32
UNITS "seconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The number of seconds to wait before repeating a ping test
as defined by the value of the various objects in the
corresponding row.
A single ping test consists of a series of ping probes.
The number of probes is determined by the value of the
corresponding pingCtlProbeCount object. After a single
test completes the number of seconds as defined by the
value of pingCtlFrequency MUST elapse before the
next ping test is started.
A value of 0 for this object implies that the test
as defined by the corresponding entry will not be
repeated."
DEFVAL { 0 }
::= { pingCtlEntry 10 }
pingCtlMaxRows OBJECT-TYPE
SYNTAX Unsigned32
UNITS "rows"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The maximum number of entries allowed in the
pingProbeHistoryTable. An implementation of this
MIB will remove the oldest entry in the
pingProbeHistoryTable to allow the addition of an
new entry once the number of rows in the
pingProbeHistoryTable reaches this value.
Old entries are not removed when a new test is
started. Entries are added to the pingProbeHistoryTable
until pingCtlMaxRows is reached before entries begin to
be removed.
A value of 0 for this object disables creation of
pingProbeHistoryTable entries."
DEFVAL { 50 }
::= { pingCtlEntry 11 }
pingCtlStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The storage type for this conceptual row.
Conceptual rows having the value 'permanent' need not
allow write-access to any columnar objects in the row."
DEFVAL { nonVolatile }
::= { pingCtlEntry 12 }
pingCtlTrapGeneration OBJECT-TYPE
SYNTAX BITS {
probeFailure(0),
testFailure(1),
testCompletion(2)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The value of this object determines when and if
to generate a notification for this entry:
probeFailure(0) - Generate a pingProbeFailed
notification subject to the value of
pingCtlTrapProbeFailureFilter. The object
pingCtlTrapProbeFailureFilter can be used
to specify the number of successive probe failures
that are required before a pingProbeFailed
notification can be generated.
testFailure(1) - Generate a pingTestFailed
notification. In this instance the object
pingCtlTrapTestFailureFilter can be used to
determine the number of probe failures that
signal when a test fails.
testCompletion(2) - Generate a pingTestCompleted
notification.
The value of this object defaults to zero, indicating
that none of the above options have been selected."
::= { pingCtlEntry 13 }
pingCtlTrapProbeFailureFilter OBJECT-TYPE
SYNTAX Unsigned32 (0..15)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The value of this object is used to determine when
to generate a pingProbeFailed NOTIFICATION.
Setting pingCtlTrapGeneration
to probeFailure(0) implies that a pingProbeFailed
NOTIFICATION is generated only when the number of
successive probe failures as indicated by the
value of pingCtlTrapPrbefailureFilter fail within
a given ping test."
DEFVAL { 1 }
::= { pingCtlEntry 14 }
pingCtlTrapTestFailureFilter OBJECT-TYPE SYNTAX Unsigned32 (0..15) MAX-ACCESS read-create STATUS current
DESCRIPTION
"The value of this object is used to determine when
to generate a pingTestFailed NOTIFICATION.
Setting pingCtlTrapGeneration to testFailure(1)
implies that a pingTestFailed NOTIFICATION is
generated only when the number of ping failures
within a test exceed the value of
pingCtlTrapTestFailureFilter."
DEFVAL { 1 }
::= { pingCtlEntry 15 }
pingCtlType OBJECT-TYPE
SYNTAX OBJECT IDENTIFIER
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The value of this object is used to either report or
select the implementation method to be used for
calculating a ping response time. The value of this
object MAY be selected from pingImplementationTypeDomains.
Additional implementation types SHOULD be allocated as
required by implementers of the DISMAN-PING-MIB under
their enterprise specific registration point and not
beneath pingImplementationTypeDomains."
DEFVAL { pingIcmpEcho }
::= { pingCtlEntry 16 }
pingCtlDescr OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The purpose of this object is to provide a
descriptive name of the remote ping test."
DEFVAL { '00'H }
::= { pingCtlEntry 17 }
pingCtlSourceAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Specifies the type of the source address,
pingCtlSourceAddress, to be used at a remote host
when performing a ping operation."
DEFVAL { ipv4 }
::= { pingCtlEntry 18 }
pingCtlSourceAddress OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Use the specified IP address (which must be given
in numeric form, not as a hostname) as the source
address in outgoing probe packets. On hosts with
more than one IP address, this option can be used
to force the source address to be something other
than the primary IP address of the interface the
probe packet is sent on. If the IP address is not
one of this machine's interface addresses, an error
is returned and nothing is sent. A zero length
octet string value for this object disables source
address specification.
The address type (InetAddressType) that relates to
this object is specified by the corresponding value
of pingCtlSourceAddressType."
DEFVAL { H }
::= { pingCtlEntry 19 }
pingCtlIfIndex OBJECT-TYPE
SYNTAX InterfaceIndexOrZero
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Setting this object to an interface's ifIndex prior
to starting a remote ping operation directs
the ping probes to be transmitted over the
specified interface. A value of zero for this object
means that this option is not enabled."
DEFVAL { 0 }
::= { pingCtlEntry 20 }
pingCtlByPassRouteTable OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-create STATUS current DESCRIPTION "The purpose of this object is to optionally enable bypassing the route table. If enabled, the remote host will bypass the normal routing tables and send directly to a host on an attached network. If the host is not on a directly-attached network, an
error is returned. This option can be used to perform
the ping operation to a local host through an
interface that has no route defined (e.g., after the
interface was dropped by routed)."
DEFVAL { false }
::= { pingCtlEntry 21 }
pingCtlDSField OBJECT-TYPE
SYNTAX Unsigned32 (0..255)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Specifies the value to store in the Differentiated
Services (DS) Field in the IP packet used to
encapsulate the ping probe. The DS Field is defined
as the Type of Service (TOS) octet in a IPv4 header
or as the Traffic Class octet in a IPv6 header.
The value of this object must be a decimal integer
in the range from 0 to 255. This option can be used
to determine what effect an explicit DS Field setting
has on a ping response. Not all values are legal or
meaningful. A value of 0 means that the function
represented by this option is not supported. DS Field
usage is often not supported by IP implementations and
not all values are supported. Refer to RFC 2474 for
guidance on usage of this field."
REFERENCE
"Refer to RFC 2474 for the definition of the
Differentiated Services Field and to RFC 1812
Section 5.3.2 for Type of Service (TOS)."
DEFVAL { 0 }
::= { pingCtlEntry 22 }
pingCtlRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object allows entries to be created and deleted
in the pingCtlTable. Deletion of an entry in this
table results in all corresponding (same
pingCtlOwnerIndex and pingCtlTestName index values)
pingResultsTable and pingProbeHistoryTable entries
being deleted.
A value MUST be specified for pingCtlTargetAddress
prior to a transition to active(1) state being
accepted.
Activation of a remote ping operation is controlled
via pingCtlAdminStatus and not by changing
this object's value to active(1).
Transitions in and out of active(1) state are not
allowed while an entry's pingResultsOperStatus is
active(1) with the exception that deletion of
an entry in this table by setting its RowStatus
object to destroy(6) will stop an active
ping operation.
The operational state of a ping operation
can be determined by examination of its
pingResultsOperStatus object."
REFERENCE
"See definition of RowStatus in RFC 2579, 'Textual
Conventions for SMIv2.'"
::= { pingCtlEntry 23 }
-- Ping Results Table
pingResultsTable OBJECT-TYPE
SYNTAX SEQUENCE OF PingResultsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Defines the Ping Results Table for providing
the capability of performing ping operations at
a remote host. The results of these operations are
stored in the pingResultsTable and the pingPastProbeTable.
An entry is added to the pingResultsTable when an
pingCtlEntry is started by successful transition
of its pingCtlAdminStatus object to enabled(1).
An entry is removed from the pingResultsTable when
its corresponding pingCtlEntry is deleted."
- = { pingObjects 3 }
pingResultsEntry OBJECT-TYPE
SYNTAX PingResultsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Defines an entry in the pingResultsTable. The
pingResultsTable has the same indexing as the
pingCtlTable in order for a pingResultsEntry to
correspond to the pingCtlEntry that caused it to
be created."
INDEX {
pingCtlOwnerIndex,
pingCtlTestName
}
::= { pingResultsTable 1 }
PingResultsEntry ::=
SEQUENCE {
pingResultsOperStatus INTEGER,
pingResultsIpTargetAddressType InetAddressType,
pingResultsIpTargetAddress InetAddress,
pingResultsMinRtt Unsigned32,
pingResultsMaxRtt Unsigned32,
pingResultsAverageRtt Unsigned32,
pingResultsProbeResponses Unsigned32,
pingResultsSentProbes Unsigned32,
pingResultsRttSumOfSquares Unsigned32,
pingResultsLastGoodProbe DateAndTime
}
pingResultsOperStatus OBJECT-TYPE
SYNTAX INTEGER {
enabled(1), -- test is in progress
disabled(2) -- test has stopped
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Reflects the operational state of a pingCtlEntry:
enabled(1) - Test is active.
disabled(2) - Test has stopped."
::= { pingResultsEntry 1 }
pingResultsIpTargetAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This objects indicates the type of address stored
in the corresponding pingResultsIpTargetAddress
object."
DEFVAL { unknown }
::= { pingResultsEntry 2 }
pingResultsIpTargetAddress OBJECT-TYPE SYNTAX InetAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This objects reports the IP address associated
with a pingCtlTargetAddress value when the destination
address is specified as a DNS name. The value of
this object should be a zero length octet string
when a DNS name is not specified or when a
specified DNS name fails to resolve."
DEFVAL { H }
::= { pingResultsEntry 3 }
pingResultsMinRtt OBJECT-TYPE
SYNTAX Unsigned32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The minimum ping round-trip-time (RTT) received. A value
of 0 for this object implies that no RTT has been received."
::= { pingResultsEntry 4 }
pingResultsMaxRtt OBJECT-TYPE
SYNTAX Unsigned32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The maximum ping round-trip-time (RTT) received. A value
of 0 for this object implies that no RTT has been received."
::= { pingResultsEntry 5 }
pingResultsAverageRtt OBJECT-TYPE
SYNTAX Unsigned32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The current average ping round-trip-time (RTT)."
::= { pingResultsEntry 6 }
pingResultsProbeResponses OBJECT-TYPE
SYNTAX Unsigned32
UNITS "responses"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of responses received for the corresponding
pingCtlEntry and pingResultsEntry. The value of this object
MUST be reported as 0 when no probe responses have been
received."
::= { pingResultsEntry 7 }
pingResultsSentProbes OBJECT-TYPE
SYNTAX Unsigned32
UNITS "probes"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of this object reflects the number of probes sent
for the corresponding pingCtlEntry and pingResultsEntry.
The value of this object MUST be reported as 0 when no probes
have been sent."
::= { pingResultsEntry 8 }
pingResultsRttSumOfSquares OBJECT-TYPE
SYNTAX Unsigned32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains the sum of the squares for all ping
responses received. Its purpose is to enable standard
deviation calculation. The value of this object MUST
be reported as 0 when no ping responses have been
received."
::= { pingResultsEntry 9 }
pingResultsLastGoodProbe OBJECT-TYPE
SYNTAX DateAndTime
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Date and time when the last response was received for
a probe."
::= { pingResultsEntry 10 }
-- Ping Probe History Table
pingProbeHistoryTable OBJECT-TYPE
SYNTAX SEQUENCE OF PingProbeHistoryEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Defines a table for storing the results of a ping
operation. Entries in this table are limited by
the value of the corresponding pingCtlMaxRows
object.
An entry in this table is created when the result of
a ping probe is determined. The initial 2 instance
identifier index values identify the pingCtlEntry
that a probe result (pingProbeHistoryEntry) belongs
to. An entry is removed from this table when
its corresponding pingCtlEntry is deleted.
An implementation of this MIB will remove the oldest
entry in the pingProbeHistoryTable to allow the
addition of an new entry once the number of rows in
the pingProbeHistoryTable reaches the value specified
by pingCtlMaxRows."
- = { pingObjects 4 }
pingProbeHistoryEntry OBJECT-TYPE
SYNTAX PingProbeHistoryEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Defines an entry in the pingProbeHistoryTable.
The first two index elements identify the
pingCtlEntry that a pingProbeHistoryEntry belongs
to. The third index element selects a single
probe result."
INDEX {
pingCtlOwnerIndex,
pingCtlTestName,
pingProbeHistoryIndex
}
::= { pingProbeHistoryTable 1 }
PingProbeHistoryEntry ::=
SEQUENCE {
pingProbeHistoryIndex Unsigned32,
pingProbeHistoryResponse Unsigned32,
pingProbeHistoryStatus OperationResponseStatus,
pingProbeHistoryLastRC Integer32,
pingProbeHistoryTime DateAndTime
}
pingProbeHistoryIndex OBJECT-TYPE SYNTAX Unsigned32 (1..'ffffffff'h) MAX-ACCESS not-accessible STATUS current DESCRIPTION
"An entry in this table is created when the result of
a ping probe is determined. The initial 2 instance
identifier index values identify the pingCtlEntry
that a probe result (pingProbeHistoryEntry) belongs
to.
An implementation MUST start assigning
pingProbeHistoryIndex values at 1 and wrap after
exceeding the maximum possible value as defined by
the limit of this object ('ffffffff'h)."
::= { pingProbeHistoryEntry 1 }
pingProbeHistoryResponse OBJECT-TYPE
SYNTAX Unsigned32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The amount of time measured in milliseconds from when
a probe was sent to when its response was received or
when it timed out. The value of this object is reported
as 0 when it is not possible to transmit a probe."
::= { pingProbeHistoryEntry 2 }
pingProbeHistoryStatus OBJECT-TYPE
SYNTAX OperationResponseStatus
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The result of a particular probe done by a remote host."
::= { pingProbeHistoryEntry 3 }
pingProbeHistoryLastRC OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The last implementation method specific reply code received.
If the ICMP Echo capability is being used then a successful
probe ends when an ICMP response is received that contains
the code ICMP_ECHOREPLY(0). The ICMP responses are defined
normally in the ip_icmp include file."
::= { pingProbeHistoryEntry 4 }
pingProbeHistoryTime OBJECT-TYPE SYNTAX DateAndTime MAX-ACCESS read-only STATUS current
DESCRIPTION
"Timestamp for when this probe result was determined."
::= { pingProbeHistoryEntry 5 }
-- Notification Definition section
pingProbeFailed NOTIFICATION-TYPE
OBJECTS {
pingCtlTargetAddressType,
pingCtlTargetAddress,
pingResultsOperStatus,
pingResultsIpTargetAddressType,
pingResultsIpTargetAddress,
pingResultsMinRtt,
pingResultsMaxRtt,
pingResultsAverageRtt,
pingResultsProbeResponses,
pingResultsSentProbes,
pingResultsRttSumOfSquares,
pingResultsLastGoodProbe
}
STATUS current
DESCRIPTION
"Generated when a probe failure is detected when the
corresponding pingCtlTrapGeneration object is set to
probeFailure(0) subject to the value of
pingCtlTrapProbeFailureFilter. The object
pingCtlTrapProbeFailureFilter can be used to specify the
number of successive probe failures that are required
before this notification can be generated."
::= { pingNotifications 1 }
pingTestFailed NOTIFICATION-TYPE
OBJECTS {
pingCtlTargetAddressType,
pingCtlTargetAddress,
pingResultsOperStatus,
pingResultsIpTargetAddressType,
pingResultsIpTargetAddress,
pingResultsMinRtt,
pingResultsMaxRtt,
pingResultsAverageRtt,
pingResultsProbeResponses,
pingResultsSentProbes,
pingResultsRttSumOfSquares,
pingResultsLastGoodProbe
}
STATUS current
DESCRIPTION
"Generated when a ping test is determined to have failed
when the corresponding pingCtlTrapGeneration object is
set to testFailure(1). In this instance
pingCtlTrapTestFailureFilter should specify the number of
probes in a test required to have failed in order to
consider the test as failed."
::= { pingNotifications 2 }
pingTestCompleted NOTIFICATION-TYPE
OBJECTS {
pingCtlTargetAddressType,
pingCtlTargetAddress,
pingResultsOperStatus,
pingResultsIpTargetAddressType,
pingResultsIpTargetAddress,
pingResultsMinRtt,
pingResultsMaxRtt,
pingResultsAverageRtt,
pingResultsProbeResponses,
pingResultsSentProbes,
pingResultsRttSumOfSquares,
pingResultsLastGoodProbe
}
STATUS current
DESCRIPTION
"Generated at the completion of a ping test when the
corresponding pingCtlTrapGeneration object is set to
testCompletion(4)."
::= { pingNotifications 3 }
-- Conformance information -- Compliance statements
pingCompliances OBJECT IDENTIFIER ::= { pingConformance 1 }
pingGroups OBJECT IDENTIFIER ::= { pingConformance 2 }
-- Compliance statements
pingCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for the DISMAN-PING-MIB."
MODULE -- this module
MANDATORY-GROUPS {
pingGroup,
pingNotificationsGroup
}
GROUP pingTimeStampGroup
DESCRIPTION
"This group is mandatory for implementations that have
access to a system clock and are capable of setting
the values for DateAndTime objects. It is RECOMMENDED
that when this group is not supported that the values
for the objects in this group be reported as
'0000000000000000'H."
OBJECT pingMaxConcurrentRequests
MIN-ACCESS read-only
DESCRIPTION
"The agent is not required to support set
operations to this object."
OBJECT pingCtlStorageType
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required. It is also allowed
for implementations to support only the volatile
StorageType enumeration."
OBJECT pingCtlType
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required. In addition, the only
value that MUST be supported by an implementation is
pingIcmpEcho."
OBJECT pingCtlByPassRouteTable
MIN-ACCESS read-only
DESCRIPTION
"This object is not required by implementations that
are not capable of its implementation. The function
represented by this object is implementable if the
setsockopt SOL_SOCKET SO_DONTROUTE option is
supported."
OBJECT pingCtlSourceAddressType
SYNTAX InetAddressType { unknown(0), ipv4(1), ipv6(2) }
MIN-ACCESS read-only
DESCRIPTION
"This object is not required by implementations that
are not capable of binding the send socket with a
source address. An implementation is only required to
support IPv4 and IPv6 addresses."
OBJECT pingCtlSourceAddress
SYNTAX InetAddress (SIZE(0|4|16))
MIN-ACCESS read-only
DESCRIPTION
"This object is not required by implementations that
are not capable of binding the send socket with a
source address. An implementation is only required to
support IPv4 and globally unique IPv6 addresses."
OBJECT pingCtlIfIndex
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required. When write access is
not supported return a 0 as the value of this object.
A value of 0 means that the function represented by
this option is not supported."
OBJECT pingCtlDSField
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required. When write access is
not supported return a 0 as the value of this object.
A value of 0 means that the function represented by
this option is not supported."
OBJECT pingResultsIpTargetAddressType
SYNTAX InetAddressType { unknown(0), ipv4(1), ipv6(2) }
DESCRIPTION
"An implementation is only required to
support IPv4 and IPv6 addresses."
OBJECT pingResultsIpTargetAddress
SYNTAX InetAddress (SIZE(0|4|16))
DESCRIPTION
"An implementation is only required to
support IPv4 and globally unique IPv6 addresses."
::= { pingCompliances 1 }
-- MIB groupings
pingGroup OBJECT-GROUP
OBJECTS {
pingMaxConcurrentRequests,
pingCtlTargetAddressType,
pingCtlTargetAddress,
pingCtlDataSize,
pingCtlTimeOut,
pingCtlProbeCount,
pingCtlAdminStatus,
pingCtlDataFill,
pingCtlFrequency,
pingCtlMaxRows,
pingCtlStorageType,
pingCtlTrapGeneration,
pingCtlTrapProbeFailureFilter,
pingCtlTrapTestFailureFilter,
pingCtlType,
pingCtlDescr,
pingCtlByPassRouteTable,
pingCtlSourceAddressType,
pingCtlSourceAddress,
pingCtlIfIndex,
pingCtlDSField,
pingCtlRowStatus,
pingResultsOperStatus,
pingResultsIpTargetAddressType,
pingResultsIpTargetAddress,
pingResultsMinRtt,
pingResultsMaxRtt,
pingResultsAverageRtt,
pingResultsProbeResponses,
pingResultsSentProbes,
pingResultsRttSumOfSquares,
pingProbeHistoryResponse,
pingProbeHistoryStatus,
pingProbeHistoryLastRC
}
STATUS current DESCRIPTION
"The group of objects that comprise the remote ping
capability."
::= { pingGroups 1 }
pingTimeStampGroup OBJECT-GROUP
OBJECTS {
pingResultsLastGoodProbe,
pingProbeHistoryTime
}
STATUS current DESCRIPTION
"The group of DateAndTime objects."
::= { pingGroups 2 }
pingNotificationsGroup NOTIFICATION-GROUP
NOTIFICATIONS {
pingProbeFailed,
pingTestFailed,
pingTestCompleted
}
STATUS current DESCRIPTION
"The notification which are required to be supported by implementations of this MIB."
- = { pingGroups 3 }
END
DISMAN-TRACEROUTE-MIB
DISMAN-TRACEROUTE-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE, Integer32,
Gauge32, Unsigned32, mib-2,
NOTIFICATION-TYPE,
OBJECT-IDENTITY
FROM SNMPv2-SMI -- RFC2578
RowStatus, StorageType,
TruthValue, DateAndTime
FROM SNMPv2-TC -- RFC2579
MODULE-COMPLIANCE, OBJECT-GROUP,
NOTIFICATION-GROUP
FROM SNMPv2-CONF -- RFC2580
SnmpAdminString
FROM SNMP-FRAMEWORK-MIB -- RFC2571
InterfaceIndexOrZero -- RFC2863
FROM IF-MIB
InetAddressType, InetAddress
FROM INET-ADDRESS-MIB -- RFC2851
OperationResponseStatus
FROM DISMAN-PING-MIB; -- RFC2925
traceRouteMIB MODULE-IDENTITY LAST-UPDATED "200009210000Z" -- 21 September 2000
ORGANIZATION "IETF Distributed Management Working Group"
CONTACT-INFO
"Kenneth White
International Business Machines Corporation
Network Computing Software Division
Research Triangle Park, NC, USA
E-mail: [email protected]" DESCRIPTION "The Traceroute MIB (DISMAN-TRACEROUTE-MIB) provides access to the traceroute capability at a remote host."
-- Revision history
REVISION "200009210000Z" -- 21 September 2000
DESCRIPTION
"Initial version, published as RFC 2925."
::= { mib-2 81 }
-- Top level structure of the MIB
traceRouteNotifications OBJECT IDENTIFIER ::= { traceRouteMIB 0 }
traceRouteObjects OBJECT IDENTIFIER ::= { traceRouteMIB 1 }
traceRouteConformance OBJECT IDENTIFIER ::= { traceRouteMIB 2 }
-- The registration node (point) for traceroute implementation types
traceRouteImplementationTypeDomains OBJECT IDENTIFIER
::= { traceRouteMIB 3 }
traceRouteUsingUdpProbes OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Indicates that an implementation is using UDP probes to
perform the traceroute operation."
::= { traceRouteImplementationTypeDomains 1 }
-- Simple Object Definitions
traceRouteMaxConcurrentRequests OBJECT-TYPE
SYNTAX Unsigned32
UNITS "requests"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The maximum number of concurrent active traceroute requests
that are allowed within an agent implementation. A value
of 0 for this object implies that there is no limit for
the number of concurrent active requests in effect."
DEFVAL { 10 }
::= { traceRouteObjects 1 }
-- Traceroute Control Table
traceRouteCtlTable OBJECT-TYPE
SYNTAX SEQUENCE OF TraceRouteCtlEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Defines the Remote Operations Traceroute Control Table for
providing the capability of invoking traceroute from a remote
host. The results of traceroute operations can be stored in
the traceRouteResultsTable, traceRouteProbeHistoryTable, and
the traceRouteHopsTable."
- = { traceRouteObjects 2 }
traceRouteCtlEntry OBJECT-TYPE
SYNTAX TraceRouteCtlEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Defines an entry in the traceRouteCtlTable. The first
index element, traceRouteCtlOwnerIndex, is of type
SnmpAdminString, a textual convention that allows for
use of the SNMPv3 View-Based Access Control Model
(RFC 2575 [11], VACM) and allows an management
application to identify its entries. The second index,
traceRouteCtlTestName (also an SnmpAdminString),
enables the same management application to have
multiple requests outstanding."
INDEX {
traceRouteCtlOwnerIndex,
traceRouteCtlTestName
}
::= { traceRouteCtlTable 1 }
TraceRouteCtlEntry ::=
SEQUENCE {
traceRouteCtlOwnerIndex SnmpAdminString,
traceRouteCtlTestName SnmpAdminString,
traceRouteCtlTargetAddressType InetAddressType,
traceRouteCtlTargetAddress InetAddress,
traceRouteCtlByPassRouteTable TruthValue,
traceRouteCtlDataSize Unsigned32,
traceRouteCtlTimeOut Unsigned32,
traceRouteCtlProbesPerHop Unsigned32,
traceRouteCtlPort Unsigned32,
traceRouteCtlMaxTtl Unsigned32,
traceRouteCtlDSField Unsigned32,
traceRouteCtlSourceAddressType InetAddressType,
traceRouteCtlSourceAddress InetAddress, traceRouteCtlIfIndex InterfaceIndexOrZero, traceRouteCtlMiscOptions SnmpAdminString, traceRouteCtlMaxFailures Unsigned32, traceRouteCtlDontFragment TruthValue, traceRouteCtlInitialTtl Unsigned32, traceRouteCtlFrequency Unsigned32, traceRouteCtlStorageType StorageType, traceRouteCtlAdminStatus INTEGER, traceRouteCtlMaxRows Unsigned32, traceRouteCtlTrapGeneration BITS, traceRouteCtlDescr SnmpAdminString, traceRouteCtlCreateHopsEntries TruthValue, traceRouteCtlType OBJECT IDENTIFIER, traceRouteCtlRowStatus RowStatus }
traceRouteCtlOwnerIndex OBJECT-TYPE SYNTAX SnmpAdminString (SIZE(0..32)) MAX-ACCESS not-accessible STATUS current DESCRIPTION "To facilitate the provisioning of access control by a security administrator using the View-Based Access Control Model (RFC 2575, VACM) for tables in which multiple users may need to independently create or modify entries, the initial index is used as an 'owner index'. Such an initial index has a syntax of SnmpAdminString, and can thus be trivially mapped to a securityName or groupName as defined in VACM, in accordance with a security policy.
When used in conjunction with such a security policy
all entries in the table belonging to a particular user
(or group) will have the same value for this initial
index. For a given user's entries in a particular
table, the object identifiers for the information in
these entries will have the same subidentifiers (except
for the 'column' subidentifier) up to the end of the
encoded owner index. To configure VACM to permit access
to this portion of the table, one would create
vacmViewTreeFamilyTable entries with the value of
vacmViewTreeFamilySubtree including the owner index
portion, and vacmViewTreeFamilyMask 'wildcarding' the
column subidentifier. More elaborate configurations
are possible."
::= { traceRouteCtlEntry 1 }
traceRouteCtlTestName OBJECT-TYPE
SYNTAX SnmpAdminString (SIZE(0..32))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The name of a traceroute test. This is locally unique,
within the scope of an traceRouteCtlOwnerIndex."
::= { traceRouteCtlEntry 2 }
traceRouteCtlTargetAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Specifies the type of host address to be used on the
traceroute request at the remote host."
DEFVAL { ipv4 }
::= { traceRouteCtlEntry 3 }
traceRouteCtlTargetAddress OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Specifies the host address used on the
traceroute request at the remote host. The
host address type can be determined by the
examining the value of the corresponding
traceRouteCtlTargetAddressType index element.
A value for this object MUST be set prior to
transitioning its corresponding traceRouteCtlEntry to
active(1) via traceRouteCtlRowStatus."
::= { traceRouteCtlEntry 4 }
traceRouteCtlByPassRouteTable OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-create STATUS current DESCRIPTION "The purpose of this object is to optionally enable bypassing the route table. If enabled, the remote host will bypass the normal routing tables and send directly to a host on an attached network. If the host is not on a directly-attached network, an error is returned. This option can be used to perform the traceroute operation to a local host through an interface that has no route defined (e.g., after the
interface was dropped by routed)."
DEFVAL { false }
::= { traceRouteCtlEntry 5 }
traceRouteCtlDataSize OBJECT-TYPE
SYNTAX Unsigned32 (0..65507)
UNITS "octets"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Specifies the size of the data portion of a traceroute
request in octets. A traceroute request is essentially
transmitted by encoding a UDP datagram into a
IP packet. So subtracting the size of a UDP header
(8 octets) and the size of a IP header (20 octets)
yields a maximum of 65507 octets."
DEFVAL { 0 }
::= { traceRouteCtlEntry 6 }
traceRouteCtlTimeOut OBJECT-TYPE
SYNTAX Unsigned32 (1..60)
UNITS "seconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Specifies the time-out value, in seconds, for
a traceroute request."
DEFVAL { 3 }
::= { traceRouteCtlEntry 7 }
traceRouteCtlProbesPerHop OBJECT-TYPE
SYNTAX Unsigned32 (1..10)
UNITS "probes"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Specifies the number of times to reissue a traceroute
request with the same time-to-live (TTL) value."
DEFVAL { 3 }
::= { traceRouteCtlEntry 8 }
traceRouteCtlPort OBJECT-TYPE
SYNTAX Unsigned32 (1..65535)
UNITS "UDP Port"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Specifies the UDP port to send the traceroute
request to. Need to specify a port that is not in
use at the destination (target) host. The default
value for this object is the IANA assigned port,
33434, for the traceroute function."
DEFVAL { 33434 }
::= { traceRouteCtlEntry 9 }
traceRouteCtlMaxTtl OBJECT-TYPE
SYNTAX Unsigned32 (1..255)
UNITS "time-to-live value"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Specifies the maximum time-to-live value."
DEFVAL { 30 }
::= { traceRouteCtlEntry 10 }
traceRouteCtlDSField OBJECT-TYPE
SYNTAX Unsigned32 (0..255)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Specifies the value to store in the Differentiated
Services (DS) Field in the IP packet used to
encapsulate the traceroute probe. The DS Field is
defined as the Type of Service (TOS) octet in a IPv4
header or as the Traffic Class octet in a IPv6 header.
The value of this object must be a decimal integer
in the range from 0 to 255. This option can be used
to determine what effect an explicit DS Field setting
has on a traceroute response. Not all values are legal
or meaningful. DS Field usage is often not supported
by IP implementations. A value of 0 means that the
function represented by this option is not supported.
Useful TOS octet values are probably '16' (low delay)
and '8' ( high throughput)."
REFERENCE
"Refer to RFC 2474 for the definition of the
Differentiated Services Field and to RFC 1812
Section 5.3.2 for Type of Service (TOS)."
DEFVAL { 0 }
::= { traceRouteCtlEntry 11 }
traceRouteCtlSourceAddressType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS read-create STATUS current
DESCRIPTION
"Specifies the type of the source address,
traceRouteCtlSourceAddress, to be used at a remote host
when performing a traceroute operation."
DEFVAL { unknown }
::= { traceRouteCtlEntry 12 }
traceRouteCtlSourceAddress OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Use the specified IP address (which must be given
as an IP number, not a hostname) as the source
address in outgoing probe packets. On hosts with
more than one IP address, this option can be used
to force the source address to be something other
than the primary IP address of the interface the
probe packet is sent on. If the IP address is not
one of this machine's interface addresses, an error
is returned and nothing is sent. A zero length
octet string value for this object disables source
address specification.
The address type (InetAddressType) that relates to
this object is specified by the corresponding value
of traceRouteCtlSourceAddressType."
DEFVAL { H }
::= { traceRouteCtlEntry 13 }
traceRouteCtlIfIndex OBJECT-TYPE
SYNTAX InterfaceIndexOrZero
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Setting this object to an interface's ifIndex prior
to starting a remote traceroute operation directs
the traceroute probes to be transmitted over the
specified interface. A value of zero for this object
implies that this option is not enabled."
DEFVAL { 0 }
::= { traceRouteCtlEntry 14 }
traceRouteCtlMiscOptions OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-create STATUS current DESCRIPTION
"Enables an application to specify implementation
dependent options."
DEFVAL { H }
::= { traceRouteCtlEntry 15 }
traceRouteCtlMaxFailures OBJECT-TYPE
SYNTAX Unsigned32 (0..255)
UNITS "timeouts"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The value of this object indicates the maximum number
of consecutive timeouts allowed before terminating
a remote traceroute request. A value of either 255 (maximum
hop count/possible TTL value) or a 0 indicates that the
function of terminating a remote traceroute request when a
specific number of successive timeouts are detected is
disabled."
DEFVAL { 5 }
::= { traceRouteCtlEntry 16 }
traceRouteCtlDontFragment OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object enables setting of the don't fragment flag (DF)
in the IP header for a probe. Use of this object enables
performing a manual PATH MTU test."
DEFVAL { false }
::= { traceRouteCtlEntry 17 }
traceRouteCtlInitialTtl OBJECT-TYPE
SYNTAX Unsigned32 (0..255)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The value of this object specifies the initial TTL value to
use. This enables bypassing the initial (often well known)
portion of a path."
DEFVAL { 1 }
::= { traceRouteCtlEntry 18 }
traceRouteCtlFrequency OBJECT-TYPE SYNTAX Unsigned32 UNITS "seconds" MAX-ACCESS read-create STATUS current
DESCRIPTION
"The number of seconds to wait before repeating a
traceroute test as defined by the value of the
various objects in the corresponding row.
The number of hops in a single traceroute test
is determined by the value of the corresponding
traceRouteCtlProbesPerHop object. After a
single test completes the number of seconds as defined
by the value of traceRouteCtlFrequency MUST elapse
before the next traceroute test is started.
A value of 0 for this object implies that the test
as defined by the corresponding entry will not be
repeated."
DEFVAL { 0 }
::= { traceRouteCtlEntry 19 }
traceRouteCtlStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The storage type for this conceptual row.
Conceptual rows having the value 'permanent' need not
allow write-access to any columnar objects in the row."
DEFVAL { nonVolatile }
::= { traceRouteCtlEntry 20 }
traceRouteCtlAdminStatus OBJECT-TYPE
SYNTAX INTEGER {
enabled(1), -- operation should be started
disabled(2) -- operation should be stopped
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Reflects the desired state that an traceRouteCtlEntry
should be in:
enabled(1) - Attempt to activate the test as defined by
this traceRouteCtlEntry.
disabled(2) - Deactivate the test as defined by this
traceRouteCtlEntry.
Refer to the corresponding traceRouteResultsOperStatus to
determine the operational state of the test defined by
this entry."
DEFVAL { disabled }
::= { traceRouteCtlEntry 21 }
traceRouteCtlDescr OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The purpose of this object is to provide a
descriptive name of the remote traceroute
test."
DEFVAL { '00'H }
::= { traceRouteCtlEntry 22 }
traceRouteCtlMaxRows OBJECT-TYPE
SYNTAX Unsigned32
UNITS "rows"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The maximum number of entries allowed in the
traceRouteProbeHistoryTable. An implementation of
this MIB will remove the oldest entry in the
traceRouteProbeHistoryTable to allow the addition
of an new entry once the number of rows in the
traceRouteProbeHistoryTable reaches this value.
Old entries are not removed when a new test is
started. Entries are added to the
traceRouteProbeHistoryTable until traceRouteCtlMaxRows
is reached before entries begin to be removed.
A value of 0 for this object disables creation of
traceRouteProbeHistoryTable entries."
DEFVAL { 50 }
::= { traceRouteCtlEntry 23 }
traceRouteCtlTrapGeneration OBJECT-TYPE
SYNTAX BITS {
pathChange(0),
testFailure(1),
testCompletion(2)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The value of this object determines when and if to
to generate a notification for this entry:
pathChange(0) - Generate a traceRoutePathChange
notification when the current path varies from a
previously determined path.
testFailure(1) - Generate a traceRouteTestFailed
notification when the full path to a target
can't be determined.
testCompletion(2) - Generate a traceRouteTestCompleted
notification when the path to a target has been
determined.
The value of this object defaults to zero, indicating
that none of the above options have been selected."
::= { traceRouteCtlEntry 24 }
traceRouteCtlCreateHopsEntries OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The current path for a traceroute test is kept in the
traceRouteHopsTable on a per hop basis when the value of
this object is true(1)."
DEFVAL { false }
::= { traceRouteCtlEntry 25 }
traceRouteCtlType OBJECT-TYPE
SYNTAX OBJECT IDENTIFIER
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The value of this object is used either to report or
select the implementation method to be used for
performing a traceroute operation. The value of this
object may be selected from
traceRouteImplementationTypeDomains.
Additional implementation types should be allocated as
required by implementers of the DISMAN-TRACEROUTE-MIB
under their enterprise specific registration point and
not beneath traceRouteImplementationTypeDomains."
DEFVAL { traceRouteUsingUdpProbes }
::= { traceRouteCtlEntry 26 }
traceRouteCtlRowStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION
"This object allows entries to be created and deleted
in the traceRouteCtlTable. Deletion of an entry in
this table results in all corresponding (same
traceRouteCtlOwnerIndex and traceRouteCtlTestName
index values) traceRouteResultsTable,
traceRouteProbeHistoryTable, and traceRouteHopsTable
entries being deleted.
A value MUST be specified for traceRouteCtlTargetAddress
prior to a transition to active(1) state being
accepted.
Activation of a remote traceroute operation is
controlled via traceRouteCtlAdminStatus and not
by transitioning of this object's value to active(1).
Transitions in and out of active(1) state are not
allowed while an entry's traceRouteResultsOperStatus
is active(1) with the exception that deletion of
an entry in this table by setting its RowStatus
object to destroy(6) will stop an active
traceroute operation.
The operational state of an traceroute operation
can be determined by examination of the corresponding
traceRouteResultsOperStatus object."
REFERENCE
"See definition of RowStatus in RFC 2579, 'Textual
Conventions for SMIv2.'"
::= { traceRouteCtlEntry 27 }
-- Traceroute Results Table
traceRouteResultsTable OBJECT-TYPE
SYNTAX SEQUENCE OF TraceRouteResultsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Defines the Remote Operations Traceroute Results Table for
keeping track of the status of a traceRouteCtlEntry.
An entry is added to the traceRouteResultsTable when an
traceRouteCtlEntry is started by successful transition
of its traceRouteCtlAdminStatus object to enabled(1).
An entry is removed from the traceRouteResultsTable when
its corresponding traceRouteCtlEntry is deleted."
- = { traceRouteObjects 3 }
traceRouteResultsEntry OBJECT-TYPE
SYNTAX TraceRouteResultsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Defines an entry in the traceRouteResultsTable. The
traceRouteResultsTable has the same indexing as the
traceRouteCtlTable in order for a traceRouteResultsEntry
to correspond to the traceRouteCtlEntry that caused it to
be created."
INDEX {
traceRouteCtlOwnerIndex,
traceRouteCtlTestName
}
::= { traceRouteResultsTable 1 }
TraceRouteResultsEntry ::=
SEQUENCE {
traceRouteResultsOperStatus INTEGER,
traceRouteResultsCurHopCount Gauge32,
traceRouteResultsCurProbeCount Gauge32,
traceRouteResultsIpTgtAddrType InetAddressType,
traceRouteResultsIpTgtAddr InetAddress,
traceRouteResultsTestAttempts Unsigned32,
traceRouteResultsTestSuccesses Unsigned32,
traceRouteResultsLastGoodPath DateAndTime
}
traceRouteResultsOperStatus OBJECT-TYPE
SYNTAX INTEGER {
enabled(1), -- test is in progress
disabled(2) -- test has stopped
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Reflects the operational state of an traceRouteCtlEntry:
enabled(1) - Test is active.
disabled(2) - Test has stopped."
::= { traceRouteResultsEntry 1 }
traceRouteResultsCurHopCount OBJECT-TYPE SYNTAX Gauge32 UNITS "hops" MAX-ACCESS read-only STATUS current DESCRIPTION
"Reflects the current TTL value (range from 1 to
255) for a remote traceroute operation.
Maximum TTL value is determined by
traceRouteCtlMaxTtl."
::= { traceRouteResultsEntry 2 }
traceRouteResultsCurProbeCount OBJECT-TYPE
SYNTAX Gauge32
UNITS "probes"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Reflects the current probe count (1..10) for
a remote traceroute operation. The maximum
probe count is determined by
traceRouteCtlProbesPerHop."
::= { traceRouteResultsEntry 3 }
traceRouteResultsIpTgtAddrType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This objects indicates the type of address stored
in the corresponding traceRouteResultsIpTgtAddr
object."
::= { traceRouteResultsEntry 4 }
traceRouteResultsIpTgtAddr OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This objects reports the IP address associated
with a traceRouteCtlTargetAddress value when the
destination address is specified as a DNS name.
The value of this object should be a zero length
octet string when a DNS name is not specified or
when a specified DNS name fails to resolve."
::= { traceRouteResultsEntry 5 }
traceRouteResultsTestAttempts OBJECT-TYPE
SYNTAX Unsigned32
UNITS "tests"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The current number of attempts to determine a path
to a target. The value of this object MUST be started
at 0."
::= { traceRouteResultsEntry 6 }
traceRouteResultsTestSuccesses OBJECT-TYPE
SYNTAX Unsigned32
UNITS "tests"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The current number of attempts to determine a path
to a target that have succeeded. The value of this
object MUST be reported as 0 when no attempts have
succeeded."
::= { traceRouteResultsEntry 7 }
traceRouteResultsLastGoodPath OBJECT-TYPE
SYNTAX DateAndTime
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The date and time when the last complete path
was determined."
::= { traceRouteResultsEntry 8 }
-- Trace Route Probe History Table
traceRouteProbeHistoryTable OBJECT-TYPE
SYNTAX SEQUENCE OF TraceRouteProbeHistoryEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Defines the Remote Operations Traceroute Results Table for
storing the results of a traceroute operation.
An implementation of this MIB will remove the oldest
entry in the traceRouteProbeHistoryTable to allow the
addition of an new entry once the number of rows in
the traceRouteProbeHistoryTable reaches the value specified
by traceRouteCtlMaxRows."
- = { traceRouteObjects 4 }
traceRouteProbeHistoryEntry OBJECT-TYPE
SYNTAX TraceRouteProbeHistoryEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Defines a table for storing the results of a traceroute
operation. Entries in this table are limited by
the value of the corresponding traceRouteCtlMaxRows
object.
The first two index elements identify the
traceRouteCtlEntry that a traceRouteProbeHistoryEntry
belongs to. The third index element selects a single
traceroute operation result. The fourth and fifth indexes
select the hop and the probe for a particular
traceroute operation."
INDEX {
traceRouteCtlOwnerIndex,
traceRouteCtlTestName,
traceRouteProbeHistoryIndex,
traceRouteProbeHistoryHopIndex,
traceRouteProbeHistoryProbeIndex
}
::= { traceRouteProbeHistoryTable 1 }
TraceRouteProbeHistoryEntry ::=
SEQUENCE {
traceRouteProbeHistoryIndex Unsigned32,
traceRouteProbeHistoryHopIndex Unsigned32,
traceRouteProbeHistoryProbeIndex Unsigned32,
traceRouteProbeHistoryHAddrType InetAddressType,
traceRouteProbeHistoryHAddr InetAddress,
traceRouteProbeHistoryResponse Unsigned32,
traceRouteProbeHistoryStatus OperationResponseStatus,
traceRouteProbeHistoryLastRC Integer32,
traceRouteProbeHistoryTime DateAndTime
}
traceRouteProbeHistoryIndex OBJECT-TYPE
SYNTAX Unsigned32 (1..'ffffffff'h)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table is created when the result of
a traceroute probe is determined. The initial 2 instance
identifier index values identify the traceRouteCtlEntry
that a probe result (traceRouteProbeHistoryEntry) belongs
to. An entry is removed from this table when
its corresponding traceRouteCtlEntry is deleted.
An implementation MUST start assigning
traceRouteProbeHistoryIndex values at 1 and wrap after
exceeding the maximum possible value as defined by the
limit of this object ('ffffffff'h)."
::= { traceRouteProbeHistoryEntry 1 }
traceRouteProbeHistoryHopIndex OBJECT-TYPE
SYNTAX Unsigned32 (1..255)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Indicates which hop in a traceroute path that the probe's
results are for. The value of this object is initially
determined by the value of traceRouteCtlInitialTtl."
::= { traceRouteProbeHistoryEntry 2 }
traceRouteProbeHistoryProbeIndex OBJECT-TYPE
SYNTAX Unsigned32 (1..10)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Indicates the index of a probe for a particular
hop in a traceroute path. The number of probes per
hop is determined by the value of the corresponding
traceRouteCtlProbesPerHop object."
::= { traceRouteProbeHistoryEntry 3 }
traceRouteProbeHistoryHAddrType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This objects indicates the type of address stored
in the corresponding traceRouteProbeHistoryHAddr
object."
::= { traceRouteProbeHistoryEntry 4 }
traceRouteProbeHistoryHAddr OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The address of a hop in a traceroute path. This object
is not allowed to be a DNS name. The value of the
corresponding object, traceRouteProbeHistoryHAddrType,
indicates this object's IP address type."
::= { traceRouteProbeHistoryEntry 5 }
traceRouteProbeHistoryResponse OBJECT-TYPE SYNTAX Unsigned32 UNITS "milliseconds" MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The amount of time measured in milliseconds from when
a probe was sent to when its response was received or
when it timed out. The value of this object is reported
as 0 when it is not possible to transmit a probe."
::= { traceRouteProbeHistoryEntry 6 }
traceRouteProbeHistoryStatus OBJECT-TYPE
SYNTAX OperationResponseStatus
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The result of a traceroute operation made by a remote
host for a particular probe."
::= { traceRouteProbeHistoryEntry 7 }
traceRouteProbeHistoryLastRC OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The last implementation method specific reply code received.
Traceroute is usually implemented by transmitting a series of
probe packets with increasing time-to-live values. A probe
packet is a UDP datagram encapsulated into an IP packet.
Each hop in a path to the target (destination) host rejects
the probe packets (probe's TTL too small, ICMP reply) until
either the maximum TTL is exceeded or the target host is
received."
::= { traceRouteProbeHistoryEntry 8 }
traceRouteProbeHistoryTime OBJECT-TYPE
SYNTAX DateAndTime
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Timestamp for when this probe results were determined."
::= { traceRouteProbeHistoryEntry 9 }
-- Traceroute Hop Results Table
traceRouteHopsTable OBJECT-TYPE SYNTAX SEQUENCE OF TraceRouteHopsEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION
"Defines the Remote Operations Traceroute Hop Table for
keeping track of the results of traceroute tests on a
per hop basis."
::= { traceRouteObjects 5 }
traceRouteHopsEntry OBJECT-TYPE
SYNTAX TraceRouteHopsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Defines an entry in the traceRouteHopsTable.
The first two index elements identify the
traceRouteCtlEntry that a traceRouteHopsEntry
belongs to. The third index element,
traceRouteHopsHopIndex, selects a
hop in a traceroute path."
INDEX {
traceRouteCtlOwnerIndex,
traceRouteCtlTestName,
traceRouteHopsHopIndex
}
::= { traceRouteHopsTable 1 }
TraceRouteHopsEntry ::=
SEQUENCE {
traceRouteHopsHopIndex Unsigned32,
traceRouteHopsIpTgtAddressType InetAddressType,
traceRouteHopsIpTgtAddress InetAddress,
traceRouteHopsMinRtt Unsigned32,
traceRouteHopsMaxRtt Unsigned32,
traceRouteHopsAverageRtt Unsigned32,
traceRouteHopsRttSumOfSquares Unsigned32,
traceRouteHopsSentProbes Unsigned32,
traceRouteHopsProbeResponses Unsigned32,
traceRouteHopsLastGoodProbe DateAndTime
}
traceRouteHopsHopIndex OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Specifies the hop index for a traceroute hop. Values
for this object with respect to the same
traceRouteCtlOwnerIndex and traceRouteCtlTestName
MUST start at 1 and increase monotonically.
The traceRouteHopsTable keeps the current traceroute
path per traceRouteCtlEntry if enabled by
setting the corresponding traceRouteCtlCreateHopsEntries
to true(1).
All hops (traceRouteHopsTable entries) in a traceroute
path MUST be updated at the same time when a traceroute
operation completes. Care needs to be applied when either
a path changes or can't be determined. The initial portion
of the path, up to the first hop change, MUST retain the
same traceRouteHopsHopIndex values. The remaining portion
of the path SHOULD be assigned new traceRouteHopsHopIndex
values."
::= { traceRouteHopsEntry 1 }
traceRouteHopsIpTgtAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This objects indicates the type of address stored
in the corresponding traceRouteHopsIpTargetAddress
object."
::= { traceRouteHopsEntry 2 }
traceRouteHopsIpTgtAddress OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reports the IP address associated with
the hop. A value for this object should be reported
as a numeric IP address and not as a DNS name."
::= { traceRouteHopsEntry 3 }
traceRouteHopsMinRtt OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The minimum traceroute round-trip-time (RTT) received for
this hop. A value of 0 for this object implies that no
RTT has been received."
::= { traceRouteHopsEntry 4 }
traceRouteHopsMaxRtt OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The maximum traceroute round-trip-time (RTT) received for
this hop. A value of 0 for this object implies that no
RTT has been received."
::= { traceRouteHopsEntry 5 }
traceRouteHopsAverageRtt OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The current average traceroute round-trip-time (RTT) for
this hop."
::= { traceRouteHopsEntry 6 }
traceRouteHopsRttSumOfSquares OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains the sum of all traceroute responses
received for this hop. Its purpose is to enable standard
deviation calculation."
::= { traceRouteHopsEntry 7 }
traceRouteHopsSentProbes OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of this object reflects the number of probes sent
for this hop during this traceroute test. The value of this
object should start at 0."
::= { traceRouteHopsEntry 8 }
traceRouteHopsProbeResponses OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of responses received for this hop during this
traceroute test. This value of this object should start
at 0."
::= { traceRouteHopsEntry 9 }
traceRouteHopsLastGoodProbe OBJECT-TYPE SYNTAX DateAndTime
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Date and time was the last response was received for a probe
for this hop during this traceroute test."
::= { traceRouteHopsEntry 10 }
-- Notification Definition section
traceRoutePathChange NOTIFICATION-TYPE
OBJECTS {
traceRouteCtlTargetAddressType,
traceRouteCtlTargetAddress,
traceRouteResultsIpTgtAddrType,
traceRouteResultsIpTgtAddr
}
STATUS current
DESCRIPTION
"The path to a target has changed."
::= { traceRouteNotifications 1 }
traceRouteTestFailed NOTIFICATION-TYPE
OBJECTS {
traceRouteCtlTargetAddressType,
traceRouteCtlTargetAddress,
traceRouteResultsIpTgtAddrType,
traceRouteResultsIpTgtAddr
}
STATUS current
DESCRIPTION
"Could not determine the path to a target."
::= { traceRouteNotifications 2 }
traceRouteTestCompleted NOTIFICATION-TYPE
OBJECTS {
traceRouteCtlTargetAddressType,
traceRouteCtlTargetAddress,
traceRouteResultsIpTgtAddrType,
traceRouteResultsIpTgtAddr
}
STATUS current
DESCRIPTION
"The path to a target has just been determined."
::= { traceRouteNotifications 3 }
-- Conformance information -- Compliance statements
traceRouteCompliances OBJECT IDENTIFIER ::= { traceRouteConformance 1 }
traceRouteGroups OBJECT IDENTIFIER ::= { traceRouteConformance 2 }
-- Compliance statements
traceRouteCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for the DISMAN-TRACEROUTE-MIB."
MODULE -- this module
MANDATORY-GROUPS {
traceRouteGroup
}
GROUP traceRouteTimeStampGroup
DESCRIPTION
"This group is mandatory for implementations that have
access to a system clock and are capable of setting
the values for DateAndTime objects."
GROUP traceRouteNotificationsGroup
DESCRIPTION
"This group defines a collection of optional
notifications."
GROUP traceRouteHopsTableGroup
DESCRIPTION
"This group lists the objects that make up a
traceRouteHopsEntry. Support of the traceRouteHopsTable
is optional."
OBJECT traceRouteMaxConcurrentRequests
MIN-ACCESS read-only
DESCRIPTION
"The agent is not required to support SET
operations to this object."
OBJECT traceRouteCtlByPassRouteTable
MIN-ACCESS read-only
DESCRIPTION
"This object is not required by implementations that
are not capable of its implementation. The function
represented by this object is implementable if the
setsockopt SOL_SOCKET SO_DONTROUTE option is
supported."
OBJECT traceRouteCtlSourceAddressType
SYNTAX InetAddressType { unknown(0), ipv4(1), ipv6(2) }
MIN-ACCESS read-only
DESCRIPTION
"This object is not required by implementations that
are not capable of binding the send socket with a
source address. An implementation is only required to
support IPv4 and IPv6 addresses."
OBJECT traceRouteCtlSourceAddress
SYNTAX InetAddress (SIZE(0|4|16))
MIN-ACCESS read-only
DESCRIPTION
"This object is not required by implementations that
are not capable of binding the send socket with a
source address. An implementation is only required to
support IPv4 and globally unique IPv6 addresses."
OBJECT traceRouteCtlIfIndex
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required. When write access is
not supported return a 0 as the value of this object.
A value of 0 implies that the function represented by
this option is not supported."
OBJECT traceRouteCtlMiscOptions
MIN-ACCESS read-only
DESCRIPTION
"Support of this object is optional. When not
supporting do not allow write access and return a
zero length octet string as the value of the object."
OBJECT traceRouteCtlStorageType
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required. It is also allowed
for implementations to support only the volatile
StorageType enumeration."
OBJECT traceRouteCtlDSField
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required. When write access is
not supported return a 0 as the value of this object.
A value of 0 implies that the function represented by
this option is not supported."
OBJECT traceRouteCtlType
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required. In addition, the only
value that is RECOMMENDED to be supported by an
implementation is traceRouteUsingUdpProbes."
OBJECT traceRouteResultsIpTgtAddrType
SYNTAX InetAddressType { unknown(0), ipv4(1), ipv6(2) }
DESCRIPTION
"An implementation should only support IPv4 and
globally unique IPv6 address values for this object."
OBJECT traceRouteResultsIpTgtAddr
SYNTAX InetAddress (SIZE(0|4|16))
DESCRIPTION
"An implementation should only support IPv4 and
globally unique IPv6 address values for this object."
OBJECT traceRouteProbeHistoryHAddrType
SYNTAX InetAddressType { unknown(0), ipv4(1), ipv6(2) }
DESCRIPTION
"An implementation should only support IPv4 and
globally unique IPv6 address values for this object."
OBJECT traceRouteProbeHistoryHAddr
SYNTAX InetAddress (SIZE(0|4|16))
DESCRIPTION
"An implementation should only support IPv4 and
globally unique IPv6 address values for this object."
OBJECT traceRouteHopsIpTgtAddressType
SYNTAX InetAddressType { unknown(0), ipv4(1), ipv6(2) }
DESCRIPTION
"An implementation should only support IPv4 and
globally unique IPv6 address values for this object."
OBJECT traceRouteHopsIpTgtAddress
SYNTAX InetAddress (SIZE(0|4|16))
DESCRIPTION
"An implementation should only support IPv4 and
globally unique IPv6 address values for this object."
::= { traceRouteCompliances 1 }
-- MIB groupings
traceRouteGroup OBJECT-GROUP
OBJECTS {
traceRouteMaxConcurrentRequests,
traceRouteCtlTargetAddressType,
traceRouteCtlTargetAddress,
traceRouteCtlByPassRouteTable,
traceRouteCtlDataSize,
traceRouteCtlTimeOut,
traceRouteCtlProbesPerHop,
traceRouteCtlPort,
traceRouteCtlMaxTtl,
traceRouteCtlDSField,
traceRouteCtlSourceAddressType,
traceRouteCtlSourceAddress,
traceRouteCtlIfIndex,
traceRouteCtlMiscOptions,
traceRouteCtlMaxFailures,
traceRouteCtlDontFragment,
traceRouteCtlInitialTtl,
traceRouteCtlFrequency,
traceRouteCtlStorageType,
traceRouteCtlAdminStatus,
traceRouteCtlMaxRows,
traceRouteCtlTrapGeneration,
traceRouteCtlDescr,
traceRouteCtlCreateHopsEntries,
traceRouteCtlType,
traceRouteCtlRowStatus,
traceRouteResultsOperStatus,
traceRouteResultsCurHopCount,
traceRouteResultsCurProbeCount,
traceRouteResultsIpTgtAddrType,
traceRouteResultsIpTgtAddr,
traceRouteResultsTestAttempts,
traceRouteResultsTestSuccesses,
traceRouteProbeHistoryHAddrType,
traceRouteProbeHistoryHAddr,
traceRouteProbeHistoryResponse,
traceRouteProbeHistoryStatus,
traceRouteProbeHistoryLastRC
}
STATUS current DESCRIPTION
"The group of objects that comprise the remote traceroute operation."
- = { traceRouteGroups 1 }
traceRouteTimeStampGroup OBJECT-GROUP
OBJECTS {
traceRouteResultsLastGoodPath,
traceRouteProbeHistoryTime
}
STATUS current DESCRIPTION
"The group of DateAndTime objects."
::= { traceRouteGroups 2 }
traceRouteNotificationsGroup NOTIFICATION-GROUP
NOTIFICATIONS {
traceRoutePathChange,
traceRouteTestFailed,
traceRouteTestCompleted
}
STATUS current DESCRIPTION
"The notifications which are required to be supported by implementations of this MIB."
- = { traceRouteGroups 3 }
traceRouteHopsTableGroup OBJECT-GROUP
OBJECTS {
traceRouteHopsIpTgtAddressType,
traceRouteHopsIpTgtAddress,
traceRouteHopsMinRtt,
traceRouteHopsMaxRtt,
traceRouteHopsAverageRtt,
traceRouteHopsRttSumOfSquares,
traceRouteHopsSentProbes,
traceRouteHopsProbeResponses,
traceRouteHopsLastGoodProbe
}
STATUS current
DESCRIPTION
"The group of objects that comprise the traceRouteHopsTable."
::= { traceRouteGroups 4 }
END
DISMAN-NSLOOKUP-MIB
DISMAN-NSLOOKUP-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE,
Unsigned32, mib-2, Integer32
FROM SNMPv2-SMI -- RFC2578
RowStatus
FROM SNMPv2-TC -- RFC2579
MODULE-COMPLIANCE, OBJECT-GROUP
FROM SNMPv2-CONF -- RFC2580
SnmpAdminString
FROM SNMP-FRAMEWORK-MIB -- RFC2571
InetAddressType, InetAddress
FROM INET-ADDRESS-MIB; -- RFC2851
lookupMIB MODULE-IDENTITY
LAST-UPDATED "200009210000Z" -- 21 September 2000
ORGANIZATION "IETF Distributed Management Working Group"
CONTACT-INFO
"Kenneth White
International Business Machines Corporation
Network Computing Software Division
Research Triangle Park, NC, USA
E-mail: [email protected]" DESCRIPTION "The Lookup MIB (DISMAN-NSLOOKUP-MIB) enables determination of either the name(s) corresponding to a host address or of the address(es) associated with a host name at a remote host."
-- Revision history
REVISION "200009210000Z" -- 21 September 2000
DESCRIPTION
"Initial version, published as RFC 2925."
::= { mib-2 82 }
-- Top level structure of the MIB
lookupObjects OBJECT IDENTIFIER ::= { lookupMIB 1 }
lookupConformance OBJECT IDENTIFIER ::= { lookupMIB 2 }
-- Simple Object Definitions
lookupMaxConcurrentRequests OBJECT-TYPE
SYNTAX Unsigned32
UNITS "requests"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The maximum number of concurrent active lookup requests
that are allowed within an agent implementation. A value
of 0 for this object implies that there is no limit for
the number of concurrent active requests in effect."
DEFVAL { 10 }
::= { lookupObjects 1 }
lookupPurgeTime OBJECT-TYPE SYNTAX Unsigned32 (0..86400) UNITS "seconds" MAX-ACCESS read-write STATUS current DESCRIPTION "The amount of time to wait before automatically deleting an entry in the lookupCtlTable and any dependent lookupResultsTable entries after the lookup operation represented by an lookupCtlEntry has completed.
An lookupCtEntry is considered complete
when its lookupCtlOperStatus object has a
value of completed(3)."
DEFVAL { 900 } -- 15 minutes as default
::= { lookupObjects 2 }
-- Lookup Control Table
lookupCtlTable OBJECT-TYPE
SYNTAX SEQUENCE OF LookupCtlEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Defines the Lookup Control Table for providing
the capability of performing a lookup operation,
gethostbyname or gethostbyaddr, from a remote host."
- = { lookupObjects 3 }
lookupCtlEntry OBJECT-TYPE
SYNTAX LookupCtlEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Defines an entry in the lookupCtlTable. A
lookupCtlEntry is initially indexed by
lookupCtlOwnerIndex, which is of type SnmpAdminString,
a textual convention that allows for use of the SNMPv3
View-Based Access Control Model (RFC 2575 [11], VACM)
and also allows an management application to identify
its entries. The second index element,
lookupCtlOperationName, enables the same
lookupCtlOwnerIndex entity to have multiple outstanding
requests.
The value of lookupCtlTargetAddressType determines which
lookup function to perform. Specification of dns(16)
as the value of this index implies that the gethostbyname
function should be performed to determine the numeric
addresses associated with a symbolic name via
lookupResultsTable entries. Use of a value of either
ipv4(1) or ipv6(2) implies that the gethostbyaddr function
should be performed to determine the symbolic name(s)
associated with a numeric address at a remote host."
INDEX {
lookupCtlOwnerIndex,
lookupCtlOperationName
}
::= { lookupCtlTable 1 }
LookupCtlEntry ::=
SEQUENCE {
lookupCtlOwnerIndex SnmpAdminString,
lookupCtlOperationName SnmpAdminString,
lookupCtlTargetAddressType InetAddressType,
lookupCtlTargetAddress InetAddress,
lookupCtlOperStatus INTEGER,
lookupCtlTime Unsigned32,
lookupCtlRc Integer32,
lookupCtlRowStatus RowStatus
}
lookupCtlOwnerIndex OBJECT-TYPE SYNTAX SnmpAdminString (SIZE(0..32)) MAX-ACCESS not-accessible STATUS current DESCRIPTION "To facilitate the provisioning of access control by a security administrator using the View-Based Access Control Model (RFC 2575, VACM) for tables in which multiple users may need to independently create or modify entries, the initial index is used as an 'owner index'. Such an initial index has a syntax of SnmpAdminString, and can thus be trivially mapped to a securityName or groupName as defined in VACM, in accordance with a security policy.
When used in conjunction with such a security policy all entries in the table belonging to a particular user (or group) will have the same value for this initial index. For a given user's entries in a particular table, the object identifiers for the information in these entries will have the same subidentifiers (except for the 'column' subidentifier) up to the end of the encoded owner index. To configure VACM to permit access to this
portion of the table, one would create
vacmViewTreeFamilyTable entries with the value of
vacmViewTreeFamilySubtree including the owner index
portion, and vacmViewTreeFamilyMask 'wildcarding' the
column subidentifier. More elaborate configurations
are possible."
::= { lookupCtlEntry 1 }
lookupCtlOperationName OBJECT-TYPE
SYNTAX SnmpAdminString (SIZE(0..32))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The name of a lookup operation. This is locally unique,
within the scope of an lookupCtlOwnerIndex."
::= { lookupCtlEntry 2 }
lookupCtlTargetAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Specifies the type of address for either performing a
gethostbyname or a gethostbyaddr function at a remote host.
Specification of dns(16) as the value for this object
means that the gethostbyname function should be performed
to return one or more numeric addresses. Use of a value
of either ipv4(1) or ipv6(2) means that the gethostbyaddr
function should be used to return the symbolic names
associated with a remote host."
::= { lookupCtlEntry 3 }
lookupCtlTargetAddress OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Specifies the address used for a resolver lookup at a
remote host. The corresponding lookupCtlAddressType
objects determines its type as well as the function
that can be requested.
A value for this object MUST be set prior to
transitioning its corresponding lookupCtlEntry to
active(1) via lookupCtlRowStatus."
::= { lookupCtlEntry 4 }
lookupCtlOperStatus OBJECT-TYPE
SYNTAX INTEGER {
notStarted(2), -- operation has not started
completed(3) -- operation is done
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Reflects the operational state of an lookupCtlEntry:
enabled(1) - Operation is active.
notStarted(2) - Operation has not been enabled.
completed(3) - Operation has completed.
An operation is automatically enabled(1) when its
lookupCtlRowStatus object is transitioned to active(1)
status. Until this occurs lookupCtlOperStatus MUST
report a value of notStarted(2). After the lookup
operation completes (success or failure) the value
for lookupCtlOperStatus MUST be transitioned to
completed(3)."
::= { lookupCtlEntry 5 }
lookupCtlTime OBJECT-TYPE
SYNTAX Unsigned32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Reports the number of milliseconds that a lookup
operation required to be completed at a remote host.
Completed means operation failure as well as
success."
::= { lookupCtlEntry 6 }
lookupCtlRc OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The system specific return code from a lookup
operation. All implementations MUST return a value
of 0 for this object when the remote lookup
operation succeeds. A non-zero value for this
objects indicates failure. It is recommended that
implementations that support errno use it as the
value of this object to aid a management
application in determining the cause of failure."
::= { lookupCtlEntry 7 }
lookupCtlRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object allows entries to be created and deleted
in the lookupCtlTable.
A remote lookup operation is started when an
entry in this table is created via an SNMP SET
request and the entry is activated. This
occurs by setting the value of this object
to CreateAndGo(4) during row creation or
by setting this object to active(1) after
the row is created.
A value MUST be specified for lookupCtlTargetAddress
prior to a transition to active(1) state being
accepted.
A remote lookup operation starts when its entry
first becomes active(1). Transitions in and
out of active(1) state have no effect on the
operational behavior of a remote lookup
operation, with the exception that deletion of
an entry in this table by setting its RowStatus
object to destroy(6) will stop an active
remote lookup operation.
The operational state of a remote lookup operation
can be determined by examination of its
lookupCtlOperStatus object."
REFERENCE
"See definition of RowStatus in RFC 2579,
'Textual Conventions for SMIv2.'"
::= { lookupCtlEntry 8 }
-- Lookup Results Table
lookupResultsTable OBJECT-TYPE
SYNTAX SEQUENCE OF LookupResultsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Defines the Lookup Results Table for providing
the capability of determining the results of a
operation at a remote host.
One or more entries are added to the
lookupResultsTable when a lookup operation,
as reflected by an lookupCtlEntry, completes
successfully. All entries related to a
successful lookup operation MUST be added
to the lookupResultsTable at the same time
that the associating lookupCtlOperStatus
object is transitioned to completed(2).
The number of entries added depends on the
results determined for a particular lookup
operation. All entries associated with an
lookupCtlEntry are removed when the
lookupCtlEntry is deleted.
A remote host can be multi-homed and have more
than one IP address associated with it
(gethostbyname results) and/or it can have more
than one symbolic name (gethostbyaddr results).
The gethostbyaddr function is called with a
host address as its parameter and is used
primarily to determine a symbolic name to
associate with the host address. Entries in
the lookupResultsTable MUST be made for each
host name returned. The official host name MUST
be assigned a lookupResultsIndex of 1.
The gethostbyname function is called with a
symbolic host name and is used primarily to
retrieve a host address. If possible the
primary host address SHOULD be assigned a
lookupResultsIndex of 1."
- = { lookupObjects 4 }
lookupResultsEntry OBJECT-TYPE
SYNTAX LookupResultsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Defines an entry in the lookupResultsTable. The
first two index elements identify the
lookupCtlEntry that a lookupResultsEntry belongs
to. The third index element selects a single
lookup operation result."
INDEX {
lookupCtlOwnerIndex,
lookupCtlOperationName,
lookupResultsIndex
}
::= { lookupResultsTable 1 }
LookupResultsEntry ::=
SEQUENCE {
lookupResultsIndex Unsigned32,
lookupResultsAddressType InetAddressType,
lookupResultsAddress InetAddress
}
lookupResultsIndex OBJECT-TYPE
SYNTAX Unsigned32 (1..'ffffffff'h)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Entries in the lookupResultsTable are created when
the result of a lookup operation is determined.
Entries MUST be stored in the lookupResultsTable in
the order that they are retrieved. Values assigned
to lookupResultsIndex MUST start at 1 and increase
in order."
::= { lookupResultsEntry 1 }
lookupResultsAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Indicates the type of result of a remote lookup
operation. A value of unknown(0) implies that
either the operation hasn't been started or that
it has failed."
::= { lookupResultsEntry 2 }
lookupResultsAddress OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Reflects a result for a remote lookup operation
as per the value of lookupResultsAddressType."
::= { lookupResultsEntry 3 }
-- Conformance information -- Compliance statements
lookupCompliances OBJECT IDENTIFIER ::= { lookupConformance 1 }
lookupGroups OBJECT IDENTIFIER ::= { lookupConformance 2 }
-- Compliance statements
lookupCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for the DISMAN-NSLOOKUP-MIB."
MODULE -- this module
MANDATORY-GROUPS {
lookupGroup
}
OBJECT lookupMaxConcurrentRequests
MIN-ACCESS read-only
DESCRIPTION
"The agent is not required to support SET
operations to this object."
OBJECT lookupPurgeTime
MIN-ACCESS read-only
DESCRIPTION
"The agent is not required to support a SET
operation to this object."
::= { lookupCompliances 1 }
-- MIB groupings
lookupGroup OBJECT-GROUP
OBJECTS {
lookupMaxConcurrentRequests,
lookupPurgeTime,
lookupCtlOperStatus,
lookupCtlTargetAddressType,
lookupCtlTargetAddress,
lookupCtlTime,
lookupCtlRc,
lookupCtlRowStatus,
lookupResultsAddressType,
lookupResultsAddress
}
STATUS current DESCRIPTION
"The group of objects that comprise the remote
Lookup operation."
::= { lookupGroups 1 }
END
Security Considerations
Certain management information in the MIBs defined by this document may be considered sensitive in some network environments. Therefore, authentication of received SNMP requests and controlled access to management information SHOULD be employed in such environments. The method for this authentication is a function of the SNMP Administrative Framework, and has not been expanded by this MIB.
To facilitate the provisioning of access control by a security administrator using the View-Based Access Control Model (VACM) defined in RFC 2575 [11] for tables in which multiple users may need to independently create or modify entries, the initial index is used as an "owner index". Such an initial index has a syntax of SnmpAdminString, and can thus be trivially mapped to a securityName or groupName as defined in VACM, in accordance with a security policy.
All entries in related tables belonging to a particular user will have the same value for this initial index. For a given user's entries in a particular table, the object identifiers for the information in these entries will have the same subidentifiers (except for the "column" subidentifier) up to the end of the encoded owner index. To configure VACM to permit access to this portion of the table, one would create vacmViewTreeFamilyTable entries with the value of vacmViewTreeFamilySubtree including the owner index portion, and vacmViewTreeFamilyMask "wildcarding" the column subidentifier. More elaborate configurations are possible. The VACM access control mechanism described above provides control.
In general, both the ping and traceroute functions when used excessively are considered a form of system attack. In the case of ping sending a system requests too often can negatively effect its performance or attempting to connect to what is supposed to be an unused port can be very unpredictable. Excessive use of the
traceroute capability can like ping negatively affect system performance. In insecure environments it is RECOMMENDED that the MIBs defined within this memo not be supported.
Intellectual Property
The IETF takes no position regarding the validity or scope of any intellectual property or other rights that might be claimed to pertain to the implementation or use of the technology described in this document or the extent to which any license under such rights might or might not be available; neither does it represent that it has made any effort to identify any such rights. Information on the IETF's procedures with respect to rights in standards-track and standards-related documentation can be found in BCP-11. Copies of claims of rights made available for publication and any assurances of licenses to be made available, or the result of an attempt made to obtain a general license or permission for the use of such proprietary rights by implementers or users of this specification can be obtained from the IETF Secretariat.
The IETF invites any interested party to bring to its attention any copyrights, patents or patent applications, or other proprietary rights which may cover technology that may be required to practice this standard. Please address the information to the IETF Executive Director.
Acknowledgments
This document is a product of the DISMAN Working Group.
References
[1] Case, J., Fedor, M., Schoffstall, M. and J. Davin, "Simple
Network Management Protocol", STD 15, RFC 1157, May 1990.
[2] Postel, J., "Echo Protocol", STD 20, RFC 862, May 1983.
[3] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,
M. and S. Waldbusser, "Structure of Management Information
Version 2 (SMIv2)", STD 58, RFC 2578, April 1999.
[4] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,
M. and S. Waldbusser, "Textual Conventions for SMIv2", STD 58, RFC 2579, April 1999.
[5] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,
M. and S. Waldbusser, "Conformance Statements for SMIv2", STD
58, RFC 2580, April 1999.
[6] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Protocol
Operations for Version 2 of the Simple Network Management
Protocol (SNMPv2)", RFC 1905, January 1996.
[7] Harrington D., Presuhn, R. and B. Wijnen, "An Architecture for
Describing SNMP Management Frameworks", RFC 2571, April 1999.
[8] Case, J., Harrington D., Presuhn, R. and B. Wijnen, "Message
Processing and Dispatching for the Simple Network Management
Protocol (SNMP)", RFC 2572, April 1999.
[9] Levi D., Meyer, P. and B. Stewart, "SNMPv3 Applications", RFC
2573, April 1999.
[10] Blumenthal, U. and B. Wijnen, "User-based Security Model (USM)
for version 3 of the Simple Network Management Protocol
(SNMPv3)", RFC 2574, April 1999.
[11] Wijnen, B., Presuhn, R. and K. McCloghrie, "View-based Access
Control Model (VACM) for the Simple Network Management Protocol
(SNMP)", RFC 2575, April 1999.
[12] Hovey, R. and S. Bradner, "The Organizations Involved in the
IETF Standards Process", BCP 11, RFC 2028, October 1996.
[13] Bradner, S., "Key words for use in RFCs to Indicate Requirement
Levels", BCP 14, RFC 2119, March 1997.
[14] Rose, M. and K. McCloghrie, "Structure and Identification of
Management Information for TCP/IP-based Internets", RFC 1155, May 1990.
[15] Rose, M. and K. McCloghrie, "Concise MIB Definitions", RFC 1212,
March 1991.
[16] Rose, M., "A Convention for Defining Traps for use with the
SNMP", RFC 1215, March 1991.
[17] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
"Introduction to Community-based SNMPv2", RFC 1901, January 1996.
[18] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Transport
Mappings for Version 2 of the Simple Network Management Protocol
(SNMPv2)", RFC 1906, January 1996.
[19] Bradner, S., "The Internet Standards Process -- Revision 3", RFC
2026, BCP 9, October 1996.
[20] Postel, J., "Internet Control Message Protocol", RFC 792,
September 1981.
[21] Nichols, K., Blake, S., Baker, F. and D. Black, "Definition of
the Differentiated Services Field (DS Field) in the IPv4 and
IPv6 Headers", RFC 2474, December 1998.
[22] Daniele, M., Haberman, B., Routhier, S. and J. Schoenwaelder,
"Textual Conventions for Internet Network Addresses", RFC 2851, June 2000.
[23] McCloghrie, K. and F. Kastenholz, "The Interfaces Group MIB",
RFC 2863, June 2000.
Author's Address
Kenneth D. White Dept. BRQA/Bldg. 501/G114 IBM Corporation P.O.Box 12195 3039 Cornwallis Research Triangle Park, NC 27709, USA
EMail: [email protected]
10. Full Copyright Statement
Copyright (C) The Internet Society (2000). All Rights Reserved.
This document and translations of it may be copied and furnished to others, and derivative works that comment on or otherwise explain it or assist in its implementation may be prepared, copied, published and distributed, in whole or in part, without restriction of any kind, provided that the above copyright notice and this paragraph are included on all such copies and derivative works. However, this document itself may not be modified in any way, such as by removing the copyright notice or references to the Internet Society or other Internet organizations, except as needed for the purpose of developing Internet standards in which case the procedures for copyrights defined in the Internet Standards process must be followed, or as required to translate it into languages other than English.
The limited permissions granted above are perpetual and will not be revoked by the Internet Society or its successors or assigns.
This document and the information contained herein is provided on an "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Acknowledgement
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