RFC2584

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Network Working Group B. Clouston, Ed. Request for Comments: 2584 Cisco Systems Category: Standards Track B. Moore, Ed.

                                                  IBM Corporation
                                                         May 1999
                 Definitions of Managed Objects
                  for APPN/HPR in IP Networks

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 (1999). All Rights Reserved.

Abstract

This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it defines objects for monitoring and controlling HPR (High Performance Routing) network devices which have the capability to communicate in IP (Internet Protocol) networks. This memo identifies managed objects for the HPR in IP network communications.

Introduction

This document is a product of the SNA NAU Services MIB Working Group. It defines a MIB module for managing devices with HPR in IP networks capabilities.

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 [17].

The SNMP Network Management Framework

The SNMP Management Framework presently consists of five major components:

o An overall architecture, described in RFC 2271 [1].

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 [2], STD 16, RFC 1212 [3] and RFC 1215 [4]. The
    second version, called SMIv2, is described in STD 58, RFC 2478
    [5], RFC 2579 [6] and RFC 2580 [7].

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 [8]. A second version of the SNMP
    message protocol, which is not an Internet standards track
    protocol, is called SNMPv2c and described in RFC 1901 [9] and
    RFC 1906 [10]. The third version of the message protocol is
    called SNMPv3 and described in RFC 1906 [10], RFC 2272 [11] and
    RFC 2274 [12].

o Protocol operations for accessing management information. The

    first set of protocol operations and associated PDU formats is
    described in STD 15, RFC 1157 [8]. A second set of protocol
    operations and associated PDU formats is described in RFC 1905
    [13].

o A set of fundamental applications described in RFC 2273 [14] and

    the view-based access control mechanism described in RFC 2275
    [15].

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 a MIB module that is 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.

Overview

This document identifies a set of objects for monitoring the configuration and active characteristics of devices with HPR in IP network capabilities. HPR is an enhancement to the Advanced Peer- to-Peer Network (APPN) architecture that provides fast data routing and improved session reliability. APPN is the aspect of Systems Network Architecture (SNA) that supports peer-to-peer networking. APPN/HPR in IP Networks is a further enhancement to the APPN/HPR architecture, described in RFC 2353 [18]. It provides a method with which APPN/HPR nodes can communicate in IP networks.

APPN management information is defined by the APPN MIB [19]. HPR management information is defined by the HPR MIB, RFC 2238 [20].

Highlights of the management functions supported by the APPN/HPR in IP Networks MIB module include the following:

o A count of UDP packets sent with each type of APPN traffic on

    HPR/IP links.

o Monitoring and setting configuration parameters for the mappings

    between APPN traffic types on Type of Service (TOS) Precedence
    settings in the IP header.  Note that the TOS Precedence
    settings have been redefined in RFC 2474 [21] as the first three
    bits of the differentiated services code point (DSCP).

This MIB module does not support:

o Configuration of IP addresses used for APPN ports or link

    stations.

HPR/IP Values for Objects in the APPN MIB

Ports and link stations are the APPN device's interface to the data link control (DLC), which provides the physical transport, or to another protocol, such as IP. The APPN MIB identifies ports and link stations using IP as the transport with the following objects:

o appnPortDlcType

o appnLsDlcType

o appnLsStatusDlcType

These objects all have the syntax IANAifType, and the value 126, defined as "IP (for APPN HPR in IP networks)" shall be returned when they identify an HPR/IP port or link station.

The IP address used for the port or link station is returned in the following objects:

o appnPortDlcLocalAddr

o appnLsLocalAddr

o appnLsRemoteAddr

o appnLsStatusLocalAddr

o appnLsStatusRemoteAddr

These objects have the syntax DisplayableDlcAddress, defined in the APPN MIB as a textual convention to represent the address as an octet string of ASCII characters.

The following two objects return object identifiers that tie port and link table entries in the APPN MIB to lower-layer MIB entries:

o appnPortSpecific

o appnLsSpecific

Both objects should return a RowPointer to the ifEntry in the agent's ifTable for the physical interface associated with the local IP address for the port. If the agent implements the IP-MIB (RFC 2011), this association between the IP address and the physical interface will be represented in the ipNetToMediaTable.

APPN/HPR in IP Networks MIB Structure

The APPN/HPR in IP Networks MIB module contains two groups of objects:

o hprIpMonitoringGroup - an object for counting outgoing HPR/IP

    traffic for each APPN traffic type

o hprIpConfigurationGroup - objects to represent TOS Precedence to

    APPN traffic type mappings

These groups are described below in more detail.

hprIpMonitoringGroup

The hprIpMonitoringGroup group consists of the hprIpActiveLsTable. This table is indexed by the link station name and traffic type, and contains a counter for the number of UDP packets sent on a link station for that traffic type.

hprIpConfigurationGroup

The hprIpMonitoringGroup group consists of the following objects and tables:

1) hprIpAppnPortTable

This table supports reading and setting the default mapping between APPN traffic types and TOS Precedence settings for all link stations using a port. This mapping may be overridden for individual link stations or individual connection networks.

2) hprIpLsTable

This table supports reading and setting the mappings between APPN traffic types and TOS Precedence settings for an individual link station and APPN traffic type. If there is no entry in this table for a given link station and traffic type, then that link station inherits its mapping from its port.

3) hprIpCnTable

This table supports reading and setting the mapping between APPN traffic types and TOS Precedence settings for an individual connection network and traffic type. If there is no entry in this table for a given connection network and traffic type, then that connection network inherits its mapping from its port.

Definitions

HPR-IP-MIB DEFINITIONS ::= BEGIN

IMPORTS

    MODULE-IDENTITY,OBJECT-TYPE, Counter32
                FROM SNMPv2-SMI
    DisplayString, RowStatus, TEXTUAL-CONVENTION
                FROM SNMPv2-TC
    MODULE-COMPLIANCE, OBJECT-GROUP
                FROM SNMPv2-CONF
    SnaControlPointName
                FROM APPN-MIB
    hprObjects, hprCompliances, hprGroups
                FROM HPR-MIB  ;

hprIp MODULE-IDENTITY LAST-UPDATED "9809240000Z" -- September 24, 1998 ORGANIZATION "IETF SNA NAU MIB WG / AIW APPN MIBs SIG" CONTACT-INFO

   "
           Bob Clouston
           Cisco Systems
           7025 Kit Creek Road
           P.O. Box 14987
           Research Triangle Park, NC 27709, USA
           Tel:    1 919 472 2333
           E-mail: [email protected]
           Bob Moore
           IBM Corporation
           4205 S. Miami Boulevard
           BRQA/501
           P.O. Box 12195
           Research Triangle Park, NC 27709, USA
           Tel:    1 919 254 4436
           E-mail: [email protected]
   "

DESCRIPTION

   "The MIB module for HPR over IP.  This module contains two
   groups:
    -  the HPR over IP Monitoring Group provides a count of the UDP
       packets sent by a link station for each APPN traffic type.
    -  the HPR over IP Configuration Group provides for reading and
       setting the mappings between APPN traffic types and TOS
       Precedence settings in the IP header.  These mappings are
       configured at the APPN port level, and are inherited by the
       APPN connection networks and link stations associated with an
       APPN port.  A port-level mapping can, however, be overridden
       for a particular connection network or link station."

REVISION "9809240000Z" -- September 24, 1998 DESCRIPTION

   "Initial version, Published as RFC 2584"
= { hprObjects 5 }

-- ********************************************************************* -- Textual Conventions -- ********************************************************************* AppnTrafficType ::= TEXTUAL-CONVENTION

  STATUS current
  DESCRIPTION
      "APPN traffic type.  The first four values correspond
      to APPN transmission priorities (network, high, medium and
      low), while the fifth is used for both LLC commands (XID,
      TEST, DISC, and DM) and function-routed NLPs (XID_DONE_RQ
      and XID_DONE_RSP)."
  SYNTAX INTEGER { low (1),
                   medium (2),
                   high (3),
                   network (4),
                   llcAndFnRoutedNlp (5) }

AppnTOSPrecedence ::= TEXTUAL-CONVENTION

  STATUS current
  DESCRIPTION
      "A DisplayString representing the setting of the three TOS
      Precedence bits in the IP Type of Service field for this APPN
      traffic type.  The HPR over IP architecture specifies the
      following default mapping:
           APPN traffic type           IP TOS Precedence bits
           ------------------          ----------------------
            Network                     110
            High                        100
            Medium                      010
            Low                         001
            LLC commands, etc.          110
      "
  SYNTAX DisplayString (SIZE(3))

-- *******************************************************************

-- hprObjects OBJECT IDENTIFIER ::= { hprMIB 1 } -- *******************************************************************

-- ******************************************************************* -- HPR over IP Monitoring Group -- -- This group contains a single table, the hprIsActiveLsTable, -- providing a count of UDP packets sent with each type of -- APPN traffic on each active link supporting HPR over IP. -- ******************************************************************* hprIpActiveLsTable OBJECT-TYPE

  SYNTAX SEQUENCE OF HprIpActiveLsEntry
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "The HPR/IP active link station table.  This table provides
      counts of the number of UDP packets sent for each APPN
      traffic type."
  ::= { hprIp 1 }

hprIpActiveLsEntry OBJECT-TYPE

  SYNTAX HprIpActiveLsEntry
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "Entry of the HPR/IP link station table."
  INDEX { hprIpActiveLsLsName,
          hprIpActiveLsAppnTrafficType }
  ::= { hprIpActiveLsTable 1 }

HprIpActiveLsEntry ::= SEQUENCE {

    hprIpActiveLsLsName              DisplayString,
    hprIpActiveLsAppnTrafficType     AppnTrafficType,
    hprIpActiveLsUdpPackets          Counter32 }

hprIpActiveLsLsName OBJECT-TYPE

  SYNTAX DisplayString (SIZE (1..10))
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "Administratively assigned name for the link station.  If this
      object has the same value as the appnLsName in the APPN MIB,
      then the two objects are referring to the same APPN link
      station."
  ::= { hprIpActiveLsEntry 1 }

hprIpActiveLsAppnTrafficType OBJECT-TYPE

  SYNTAX AppnTrafficType
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "APPN traffic type being sent through the link station."
  ::= { hprIpActiveLsEntry 2 }

hprIpActiveLsUdpPackets OBJECT-TYPE

  SYNTAX Counter32
  MAX-ACCESS read-only
  STATUS current
  DESCRIPTION
      "The count of outgoing UDP packets carrying this type of APPN
      traffic.  A discontinuity in the counter is indicated by the
      appnLsCounterDisconTime object in the APPN MIB."
  ::= { hprIpActiveLsEntry 3 }

-- ******************************************************************* -- HPR over IP Configuration Group -- -- This group contains three tables for reading and setting the -- mapping between APPN traffic types and values for the TOS -- Precedence bits in the IP header. hprIpAppnPortTOSPrecedence -- represents the APPN port-level mapping. This mapping can be -- overridden for an individual link station or an individual -- connection network via, respectively, the hprIpLsTOSPrecedence -- and the hprIpCnTOSPrecedence objects. -- *******************************************************************

hprIpAppnPortTable OBJECT-TYPE

  SYNTAX SEQUENCE OF HprIpAppnPortEntry
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "The HPR/IP APPN port table.  This table supports reading and
      setting the mapping between APPN traffic types and TOS
      Precedence settings for all the link stations at this APPN
      port.  This mapping can be overridden for an individual link
      station or an individual connection network via, respectively,
      the hprIpLsTOSPrecedence and the hprIpCnTOSPrecedence objects."
  ::= { hprIp 2 }

hprIpAppnPortEntry OBJECT-TYPE

  SYNTAX HprIpAppnPortEntry
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "Entry of the HPR/IP APPN port table.  Entries exist for
      every APPN port defined to support HPR over IP."
  INDEX { hprIpAppnPortName,
          hprIpAppnPortAppnTrafficType }
  ::= { hprIpAppnPortTable 1 }

HprIpAppnPortEntry ::= SEQUENCE {

    hprIpAppnPortName            DisplayString,
    hprIpAppnPortAppnTrafficType AppnTrafficType,
    hprIpAppnPortTOSPrecedence   AppnTOSPrecedence }

hprIpAppnPortName OBJECT-TYPE

  SYNTAX DisplayString (SIZE (1..10))
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "Administratively assigned name for this APPN port.  If this
      object has the same value as the appnPortName in the APPN MIB,
      then the two objects are referring to the same APPN port."
  ::= { hprIpAppnPortEntry 1 }

hprIpAppnPortAppnTrafficType OBJECT-TYPE

  SYNTAX AppnTrafficType
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "APPN traffic type sent through the port."
  ::= { hprIpAppnPortEntry 2 }

hprIpAppnPortTOSPrecedence OBJECT-TYPE

  SYNTAX AppnTOSPrecedence
  MAX-ACCESS read-write
  STATUS current
  DESCRIPTION
      "A setting for the three TOS Precedence bits in the IP Type of
      Service field for this APPN traffic type.
      When this value is changed via a Set operation, the new setting
      for the TOS Precedence bits takes effect immediately, rather
      than waiting for some event such as reinitialization of the
      port or of the APPN node itself."
  ::= { hprIpAppnPortEntry 3 }

-- ******************************************************************* hprIpLsTable OBJECT-TYPE

  SYNTAX SEQUENCE OF HprIpLsEntry
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "The HPR/IP link station table.  Values for TOS Precedence at
      the link station level override those at the level of the
      containing port.  If there is no entry in this table for a
      given link station, then that link station inherits its TOS
      Precedence values from its port."
  ::= { hprIp 3 }

hprIpLsEntry OBJECT-TYPE

  SYNTAX HprIpLsEntry
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "Entry of the HPR/IP link station table."
  INDEX { hprIpLsLsName,
          hprIpLsAppnTrafficType }
  ::= { hprIpLsTable 1 }

HprIpLsEntry ::= SEQUENCE {

    hprIpLsLsName            DisplayString,
    hprIpLsAppnTrafficType   AppnTrafficType,
    hprIpLsTOSPrecedence     AppnTOSPrecedence,
    hprIpLsRowStatus         RowStatus }

hprIpLsLsName OBJECT-TYPE

  SYNTAX DisplayString (SIZE (1..10))
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "Administratively assigned name for the link station.  If this
      object has the same value as the appnLsName in the APPN MIB,
      then the two objects are referring to the same APPN link
      station."
  ::= { hprIpLsEntry 1 }

hprIpLsAppnTrafficType OBJECT-TYPE

  SYNTAX AppnTrafficType
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "APPN traffic type sent through the link station."
  ::= { hprIpLsEntry 2 }

hprIpLsTOSPrecedence OBJECT-TYPE

  SYNTAX AppnTOSPrecedence
  MAX-ACCESS read-create
  STATUS current
  DESCRIPTION
      "A setting for the three TOS Precedence bits in the IP Type of
      Service field for this APPN traffic type.
      When this value is changed via a Set operation, the new setting
      for the TOS Precedence bits takes effect immediately, rather
      than waiting for some event such as reinitialization of the
      port or of the APPN node itself."
  ::= { hprIpLsEntry 3 }

hprIpLsRowStatus OBJECT-TYPE

  SYNTAX RowStatus
  MAX-ACCESS read-create
  STATUS current
  DESCRIPTION
      "This object allows entries to be created and deleted in the
      hprIpLsTable.  As soon as an entry becomes active, the mapping
      between APPN traffic types and TOS Precedence settings that it
      specifies becomes effective.
      The value of the other accessible object in this entry,
      hprIpLsTOSPrecedence, can be changed via a Set operation when
      this object's value is active(1).
      An entry in this table is deleted by setting this object to
      destroy(6).  Deleting an entry in this table causes the
      link station to revert to the default TOS Precedence
      mapping for its port."
  ::= { hprIpLsEntry 4 }

-- ******************************************************************* hprIpCnTable OBJECT-TYPE

  SYNTAX SEQUENCE OF HprIpCnEntry
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "The HPR/IP connection network table.  Values for TOS
      Precedence at the connection network level override those at
      the level of the containing port.  If there is no entry in
      this table for a given connection network, then that
      connection network inherits its TOS Precedence values from
      its port.
      A node may have connections to a given connection network
      through multiple ports.  There is no provision in the HPR-IP
      architecture for variations in TOS Precedence values for
      a single connection network based on the port through which
      traffic is flowing to the connection network.  Thus an entry
      in this table overrides the port-level settings for all the
      ports through which the node can reach the connection
      network."
  ::= { hprIp 4 }

hprIpCnEntry OBJECT-TYPE

  SYNTAX HprIpCnEntry
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "Entry of the HPR/IP connection network table."
  INDEX { hprIpCnVrnName,
          hprIpCnAppnTrafficType }
  ::= { hprIpCnTable 1 }

HprIpCnEntry ::= SEQUENCE {

    hprIpCnVrnName           SnaControlPointName,
    hprIpCnAppnTrafficType   AppnTrafficType,
    hprIpCnTOSPrecedence     AppnTOSPrecedence,
    hprIpCnRowStatus         RowStatus }

hprIpCnVrnName OBJECT-TYPE

  SYNTAX SnaControlPointName
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "SNA control point name of the virtual routing node (VRN) that
      identifies the connection network in the APPN topology
      database.  If this object has the same value as the appnVrnName
      in the APPN MIB, then the two objects are referring
      to the same APPN VRN."
  ::= { hprIpCnEntry 1 }

hprIpCnAppnTrafficType OBJECT-TYPE

  SYNTAX AppnTrafficType
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "APPN traffic type sent to this connection network."
  ::= { hprIpCnEntry 2 }

hprIpCnTOSPrecedence OBJECT-TYPE

  SYNTAX AppnTOSPrecedence
  MAX-ACCESS read-create
  STATUS current
  DESCRIPTION
      "A setting for the three TOS Precedence bits in the IP Type of
      Service field for this APPN traffic type.  This setting applies
      to all traffic sent to this connection network by this node,
      regardless of the port through which the traffic is sent.
      When this value is changed via a Set operation, the new setting
      for the TOS Precedence bits takes effect immediately, rather
      than waiting for some event such as reinitialization of a
      port or of the APPN node itself."
  ::= { hprIpCnEntry 3 }

hprIpCnRowStatus OBJECT-TYPE

  SYNTAX RowStatus
  MAX-ACCESS read-create
  STATUS current
  DESCRIPTION
      "This object allows entries to be created and deleted in the
      hprIpCnTable.  As soon as an entry becomes active, the mapping
      between APPN traffic types and TOS Precedence settings that it
      specifies becomes effective.
      The value of the other accessible object in this entry,
      hprIpCnTOSPrecedence, can be changed via a Set operation when
      this object's value is active(1).
      An entry in this table is deleted by setting this object to
      destroy(6).  Deleting an entry in this table causes the
      connection network to revert to the default TOS Precedence
      mapping for each port through which it is accessed."
  ::= { hprIpCnEntry 4 }

-- ******************************************************************* -- Conformance Statement -- ******************************************************************* -- Definitions imported from the HPR MIB: -- hprConformance OBJECT IDENTIFIER ::= { hprMIB 2 } -- hprCompliances OBJECT IDENTIFIER ::= { hprConformance 1 } -- hprGroups OBJECT IDENTIFIER ::= { hprConformance 2 }

-- Compliance statements hprIpCompliance MODULE-COMPLIANCE

   STATUS current
   DESCRIPTION
  "Compliance statement for the HPR over IP MIB module."

MODULE -- this module

-- Conditionally mandatory groups GROUP hprIpMonitoringGroup

  DESCRIPTION
      "The hprIpMonitoringGroup is mandatory for APPN implementations
      supporting HPR over IP."

GROUP hprIpConfigurationGroup

  DESCRIPTION
      "The hprIpConfigurationGroup is mandatory for APPN
      implementations supporting HPR over IP.  It may, however,
      be implemented as a collection of read-only objects."

OBJECT hprIpAppnPortTOSPrecedence MIN-ACCESS read-only

  DESCRIPTION
      "Write access is not required."

OBJECT hprIpLsTOSPrecedence MIN-ACCESS read-only

  DESCRIPTION
      "Write access is not required."

OBJECT hprIpLsRowStatus MIN-ACCESS read-only

  DESCRIPTION
      "Write access is not required."

OBJECT hprIpCnTOSPrecedence MIN-ACCESS read-only

  DESCRIPTION
      "Write access is not required."

OBJECT hprIpCnRowStatus MIN-ACCESS read-only

  DESCRIPTION
      "Write access is not required."
= { hprCompliances 2 }

-- Group definitions

hprIpMonitoringGroup OBJECT-GROUP

  OBJECTS { hprIpActiveLsUdpPackets }
  STATUS current
  DESCRIPTION
      "An object for counting outgoing HPR/IP traffic for each APPN
      traffic type."
= { hprGroups 5 }

hprIpConfigurationGroup OBJECT-GROUP

  OBJECTS { hprIpAppnPortTOSPrecedence,
            hprIpLsTOSPrecedence,
            hprIpLsRowStatus,
            hprIpCnTOSPrecedence,
            hprIpCnRowStatus }
  STATUS current
  DESCRIPTION
      "A collection of HPR/IP objects representing the mappings
      between APPN traffic types and TOS Precedence bits at the APPN
      port, APPN link station, and APPN connection network levels."
= { hprGroups 6 }

END

Security Considerations

Certain management information defined in this MIB 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. An authentication protocol is defined in [12]. A protocol for access control is defined in [15]. It is a customer responsibility to properly set up access control for MIB access.

None of the read-only objects in this MIB reports a password, user data, or anything else that is particularly sensitive. Some enterprises view their network configuration itself, as well as information about network usage and performance, as corporate assets; such enterprises may wish to restrict SNMP access to most of the objects in the MIB.

The one read-write and four read-create objects in the MIB can affect network operations; it is recommended that SNMP access to these objects be restricted. The five objects are:

o hprIpPortTOSPrecedence: Setting this object immediately changes

    the mapping for all link stations using this port which do not
    have an entry to override the port value.  Improper mappings may
    cause delays or disruptions in the network.  For example, if
    APPN traffic type 'High' is mapped to IP TOS Precedence bits '
    001', network control traffic will have the same TOS precedence
    as bulk data traffic.  This may cause delays with session
    initializations, and timeouts on control sessions that could
    cause network outages.

o hprIpLsTOSPrecedence: Setting this object has the potential for

    delay or disruption for this link station as described above
    with hprIpPortTOSPrecedence.

o hprIpLsRowStatus: Setting this object to delete(6) causes this

    link station to revert to the default TOS Precedence mapping for
    its port.  The customized mapping for this link station will no
    longer be in effect.

o hprIpCnTOSPrecedence: Setting this object has the potential for

    delay or disruption for this links created for this connection
    network as described above with hprIpPortTOSPrecedence.

o hprIpCnRowStatus: Setting this object to delete(6) causes links

    created for this connection network to revert to the default TOS
    Precedence mapping for its port.  The customized mapping for
    this connection network will no longer be in effect.

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 [16]. 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 MIB module is the product of the IETF SNA NAU MIB WG and the AIW APPN/HPR MIBs SIG. The editors would like to thank Katie Lee, IBM Corporation, for her work in creating the original version of this MIB.

References

[1] Harrington, D., Presuhn, R. and B. Wijnen, "An Architecture for

    Describing SNMP Management Frameworks", RFC 2271, January 1998

[2] Rose, M. and K. McCloghrie, "Structure and Identification of

    Management Information for TCP/IP-based Internets", STD 16, RFC
    1155, May 1990.

[3] Rose, M. and K. McCloghrie, "Concise MIB Definitions", STD 16,

    RFC 1212, March 1991.

[4] Rose, M., "A Convention for Defining Traps for use with the

    SNMP", RFC 1215, March 1991.

[5] McCloghrie, K., Perkins, D. and J. Schoenwaelder, "Structure of

    Management Information Version 2 (SMIv2)", STD 58, RFC 2578,
    April 1999.

[6] McCloghrie, K., Perkins, D. and J. Schoenwaelder, "Textual

    Conventions for SMIv2", STD 58, RFC 2579, April 1999.

[7] McCloghrie, K., Perkins, D. and J. Schoenwaelder, "Conformance

    Statements for SMIv2", STD 58, RFC 2580, April 1999.

[8] Case, J., Fedor, M., Schoffstall, M. and J. Davin, "Simple

    Network Management Protocol", STD 15, RFC 1157, May 1990.

[9] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,

    "Introduction to Community-based SNMPv2", RFC 1901, January
    1996.

[10] 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.

[11] Case, J., Harrington D., Presuhn R. and B. Wijnen, "Message

    Processing and Dispatching for the Simple Network Management
    Protocol (SNMP)", RFC 2272, January 1998.

[12] Blumenthal, U. and B. Wijnen, "User-based Security Model (USM)

    for version 3 of the Simple Network Management Protocol
    (SNMPv3)", RFC 2274, January 1998.

[13] 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.

[14] Levi, D., Meyer, P. and B. Stewart, "SNMPv3 Applications", RFC

    2273, January 1998.

[15] Wijnen, B., Presuhn, R. and K. McCloghrie, "View-based Access

    Control Model (VACM) for the Simple Network Management Protocol
    (SNMP)", RFC 2275, January 1998.

[16] Hovey, R. and S. Bradner, "The Organizations Involved in the

    IETF Standards Process", BCP 11, RFC 2028, October 1996.

[17] Bradner, S., "Key words for use in RFCs to Indicate Requirement

    Levels", BCP 14, RFC 2119, March 1997.

[18] Dudley, G, "APPN/HPR in IP Networks", RFC 2353, May 1998.

[19] Clouston, B. and B. Moore, "Definition of Managed Objects for

    APPN", RFC 2455, November 1998.

[20] Clouston, B. and B. Moore, "Definitions of Managed Objects for

    HPR", RFC 2238, May 1997.

[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.

Authors' Addresses

Bob Clouston Cisco Systems 7025 Kit Creek Road P.O. Box 14987 Research Triangle Park, NC 27709, USA

Phone: +1 919 472 2333 EMail: [email protected]

Robert Moore Dept. BRQA/Bldg. 501/G114 IBM Corporation P.O.Box 12195 3039 Cornwallis Research Triangle Park, NC 27709, USA

Phone: +1 919 254 4436 EMail: [email protected]

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