RFC5605
Network Working Group O. Nicklass Request for Comments: 5605 RADVISION Ltd. Category: Standards Track T. Nadeau
BT
July 2009
Managed Objects for ATM over Packet Switched Networks (PSNs)
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 describes managed objects for modeling ATM Pseudowire (PW) carrying ATM cells over Packet Switched Networks (PSNs).
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
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Contents
Introduction
This document describes a model for managing "emulated" ATM services over a Packet Switched Network (PSN).
The document follows the requirements for Pseudowire Emulation Edge- to-Edge [PWREQ]; it is closely related to [ATMENCAP] and [ATMTRANS], which describe the encapsulation of ATM signals and provide the Emulation Service over a Packet Switched Network.
The ATM management model consists of several MIB modules, following the layering model described in the PWE3 Architecture [PWARCH] document. The ATM MIB module described in this document works closely with the MIB modules described in [AToMTC], [AToM], [IFMIB], [PWMIB], and the textual conventions defined in [PWTC]. The conceptual layering and relationship among all of those is described in Figure 1 and in the "Relation to Other PW-MIB Modules" section listed below. An ATM connection will be a pseudowire (PW) connection. It will not be treated as an interface and will therefore not be represented in the ifTable.
Figure 1: Conceptual Layering
+-------------------+
| ATM MIB | ATM-TC-MIB,
+-------------------+ ATMMIB
|
+-------------------+
Service | ATM PW MIB | PW-ATM-MIB
Layer +-------------------+
- - - - - - - - - - - | - - - - - - - - - - - - - - -
Generic +-------------------+
PW | Generic PW MIBS | PW-TC-MIB,
Layer +-------------------+ PW-STD-MIB
- - - - - - - - - - - -| - - - - - - - - - - - - - - -
+-------------------+
PSN VC | MPLS VC MIBS | PW-MPLS-MIB
Layer +-------------------+
- - - - - - - - - - - -| - - - - - - - - - - - - - - -
+-------------------+
PSN | MPLS MIBs | MPLS-TE-STD-MIB,
Layer +-------------------+ MPLS-LSR-STD-MIB
Figure 1
Conventions
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 [BCP14].
Terminology
This document follows the terminology used in PW Architecture [PWARCH].
PSN-bound References the traffic direction where an ATM Cell
is received, adapted to the packet, assigned a PW
label, and sent into the PSN. Within the MIB
objects, it is called outbound.
CE-bound The direction where packets are received
from the PSN, cells are reconstructed from the
packet payloads, and are sent into the ATM network
as cells. Within the MIB objects, it is called
inbound.
Adaptation Refers to the method of adapting a "foreign"
communications protocol such that it can be
carried by a packet switched net (the PSN). For
example, in an ATM service, the foreign protocol
is ATM. The PSN may be MPLS.
PSN Packet Switched Network.
PSN Tunnel A general term indicating a virtual connection
between the two PW edge devices. In practice,
this connection is not limited to path-oriented
types of PSNs such as MPLS. An example of a non-
path-oriented PSN is an IP PSN.
The Internet-Standard Management Framework
For a detailed overview of the documents that describe the current Internet-Standard Management Framework, please refer to section 7 of RFC 3410 RFC3410.
Managed objects are accessed via a virtual information store, termed the Management Information Base or MIB. MIB objects are generally accessed through the Simple Network Management Protocol (SNMP).
Objects in the MIB are defined using the mechanisms defined in the Structure of Management Information (SMI). This memo specifies a MIB module that is compliant to the SMIv2, which is described in STD 58, RFC 2578 RFC2578, STD 58, RFC 2579 RFC2579 and STD 58, RFC 2580 RFC2580.
Overview
This MIB module is designed to satisfy the following requirements and constraints:
o Fit within the architecture defined by [PWARCH] and [PWMIB].
o Fit within the model for Virtual Path/Virtual Circuit (VP/VC)
definitions and management concept as defined in the [AToM] MIB.
o Support manually configured ATM PWs.
o Support automatically configured ATM PWs.
o Enable the use of any PSN type.
o Support point-to-point ATM PW connections. Point-to-multipoint
and multipoint-to-point connections are for future study.
o Allow configuration of all the parameters needed to establish a PW
to carry ATM cells.
o Report ATM performance metrics for the ATM PW. This includes
cells transmit, Cells dropped, Cells received, and unknownCells. In addition, it reports performance metrics at packet level.
o Support ATM Operations, Administration, and Management (OAM)
cells.
o Do not consider Integrated Local Management Interface (ILMI)
support.
Relation to Other PW-MIB Modules
The MIB structure for defining a PW service is composed of three layers of MIB modules functioning together. This general model is defined in the PWE3 Architecture [PWARCH]. The layering model is intended to sufficiently isolate PW services from the underlying PSN layer that carries the emulated service. This is done at the same time as providing a standard means for connecting any supported services to any supported PSNs.
The first layer, known as the service layer, contains service- specific modules such as the one defined in this document. These modules define service-specific management objects that interface or collaborate with existing MIB modules for the native version of the service. The service-specific module "glues" the standard module to the PWE MIB framework.
The next layer of the PWE MIB framework is comprised of the PW-MIB module [PWMIB]. This module is used to configure general parameters of PW connections that are common to all types of emulated services and PSNs. This layer is connected to the service-specific layer above, and the PSN layer below.
The PSN layer provides PSN-specific modules for each type of PSN. These modules associate the PW with one or more "tunnels" that carry the service over the PSN. These modules are defined in other documents. This module is used to "glue" the PW service to the
underlying PSN-specific MIB modules. In the case of MPLS, for example, the PW-MPLS MIB [PWMPLSMIB] is used to connect the PW service to either the MPLS-LDP [LDPMIB] or MPLS-TE [TEMIB] MIBs.
[PWTC] defines some of the object types used in these modules.
ATM-PW MIB Usage
This section provides an example of using the MIB objects described in section 9 to set up an ATM PW. While this example is not meant to illustrate every permutation of the MIB, it is intended as an aid in the understanding of some key concepts. It is meant to be read after going through the MIB itself. See [PWMIB] for an example of setting up a PSN Tunnel.
The following example illustrates how a user will set up an ATM Adaptation Layer 5 (AAL5) ATM PW on a switch/router with cells entering the switch/router through ATM Interface with IfIndex 1000 [IFMIB], Virtual Path Identifier (VPI) 1 and Virtual Circuit Identifier (VCI) 100 (from an ATM network to a PSN -- outbound direction) and on the way back, it goes out of the switch/router through ATM Interface 1000 with VPI 1 and VCI 100 (PSN to ATM network -- inbound direction).
First create an entry in the PW MIB with pwType atmAal5SduVcc(2), then create entries in the pwAtmCfg table, inbound and outbound tables.
In PW ATM MIB In pwAtmCfgTable:
pwAtmCfgMaxCellConcatenation 29 pwAtmCfgTimeoutMode enabled(3) pwAtmClpQosMapping false(0) --CLP will not be mapped to QoS pwAtmOamCellSupported true(1) --OAM cells will be supported
In pwAtmOutboundTable:
{
pwAtmOutboundAtmIf 1000 --Outbound AtmIf
pwAtmOutboundVpi 1 --Outbound VPI
pwAtmOutboundVci 100 --Outbound VCI
pwAtmOutboundTrafficParamDescr 0.0 --Best Effort
pwAtmOutboundRowStatus createAndGo
}
In pwAtmInboundTable
{
pwAtmInboundAtmIf 1000 --Inbound AtmIf
pwAtmInboundVpi 1 --Inbound VPI
pwAtmInboundVci 100 --Inbound VCI
pwAtmInboundTrafficParamDescr 0.0 --Best Effort
pwAtmInboundRowStatus createAndGo
}
Structure of the MIB Module
This MIB consists of 4 types of tables;
It is important to note that the TrafficParamDescr Table is not defined as part of this MIB, although an object pointing to such a table entry exists in all configuration tables of this MIB module. Users can refer to any ATM TrafficDescr (TD) Table if there is a need to overwrite the TD assigned to the ATM endpoint in the ATM service MIB [AToM].
o PW ATM Cfg Table: A table for generic parameters for ATM PW
configuration that is applicable for each ATM PW.
o PW ATM Outbound Table: There are two tables to configure an
outbound ATM PW depending on the type of service. One table for 1:1 service, and the other for N:1 service and transparent cell mode [ATMTRANS].
o PW ATM Inbound Table: There are two tables to configure an inbound
ATM PW depending on the type of service. One table for 1:1 service, and the other for N:1 service and transparent cell mode.
o PW ATM Perf Table: There are three tables; each contains the
relevant time-dependent statistics for an ATM PW Entry. There is a current table, a 15-minute interval table, and a one-day interval table. The tables are aligned with statistic models of other PW services.
Object Definition
PW-ATM-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE,
Counter32, Unsigned32, mib-2
FROM SNMPv2-SMI
MODULE-COMPLIANCE, OBJECT-GROUP
FROM SNMPv2-CONF
TruthValue, RowStatus, RowPointer
FROM SNMPv2-TC
PerfCurrentCount, PerfIntervalCount
FROM PerfHist-TC-MIB
InterfaceIndex
FROM IF-MIB
pwIndex
FROM PW-STD-MIB
AtmVpIdentifier, AtmVcIdentifier
FROM ATM-TC-MIB;
pwAtmMIB MODULE-IDENTITY
LAST-UPDATED "200906160000Z" -- 16 June 2009
ORGANIZATION "Pseudowire Emulation Edge-to-Edge (PWE3)
Working Group"
CONTACT-INFO
"Thomas D. Nadeau
Postal: BT
BT Centre
81 Newgate Street
London EC1A 7AJ
United Kingdom
Email: [email protected]
Orly Nicklass
Postal: RADVISION Ltd.
24 Raul Wallenberg
Tel Aviv, Israel
Email: [email protected]
Discussion and general questions should be posed to
the PWE3 Working Group ([email protected])."
DESCRIPTION
"This MIB contains managed object definitions for
pseudowire emulation of ATM over Packet Switched
Networks (PSNs).
This MIB supplements the PW-STD-MIB module.
The PW-STD-MIB contains structures and MIB associations
generic to pseudowire (PW) emulation. PW-specific
MIBs (such as this) contain config and stats for specific
PW types.
Copyright (c) 2009 IETF Trust and the persons identified as
authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, are permitted provided that the
following conditions are met:
- Redistributions of source code must retain the above
copyright notice, this list of conditions and the
following disclaimer.
- Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the
following disclaimer in the documentation and/or other
materials provided with the distribution.
- Neither the name of Internet Society, IETF or IETF Trust,
nor the names of specific contributors, may be used to
endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
CONTRIBUTORS 'AS IS' AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
This version of this MIB module is part of RFC 5605; see the RFC itself for full legal notices. "
-- Revision history.
REVISION "200906160000Z" -- 16 June 2009 DESCRIPTION "Initial version published as RFC 5605."
::= { mib-2 183 }
-- Top-level components of this MIB
pwAtmNotifications OBJECT IDENTIFIER ::= { pwAtmMIB 0 }
pwAtmObjects OBJECT IDENTIFIER ::= { pwAtmMIB 1 }
pwAtmConformance OBJECT IDENTIFIER ::= { pwAtmMIB 2 }
-- ATM PW PSN Bound(Outbound) Table for 1 to 1 connection
pwAtmOutboundTable OBJECT-TYPE
SYNTAX SEQUENCE OF PwAtmOutboundEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table specifies the information for an ATM PW to
be carried over the PSN in the outbound direction. An
entry is created in this table for every entry in
the pwTable with a pwType equal to one of the following:
atmAal5SduVcc(2), atmCell1to1Vcc(12), atmCell1to1Vpc(13)
or atmAal5PduVcc(14), or atmTransparent(3)."
::= { pwAtmObjects 1 }
pwAtmOutboundEntry OBJECT-TYPE
SYNTAX PwAtmOutboundEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A row in this table represents an ATM PW that needs to be
adapted and carried over the PSN. This table is indexed by
pwIndex from pwTable. Unless otherwise specified, all
writeable objects in this table MUST NOT be changed after
row activation in the generic pwTable, and values must
persist after reboot."
REFERENCE
"See [PWMIB]."
INDEX { pwIndex }
::= { pwAtmOutboundTable 1 }
PwAtmOutboundEntry ::= SEQUENCE {
pwAtmOutboundAtmIf InterfaceIndex, pwAtmOutboundVpi AtmVpIdentifier, pwAtmOutboundVci AtmVcIdentifier, pwAtmOutboundTrafficParamDescr RowPointer, pwAtmOutboundRowStatus RowStatus }
pwAtmOutboundAtmIf OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The ATM Interface that receives cells from the ATM
network."
::= { pwAtmOutboundEntry 1 }
pwAtmOutboundVpi OBJECT-TYPE
SYNTAX AtmVpIdentifier
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"VPI value of this ATM PW. The value may indicate the
translated value when egress generates new VPI."
::= { pwAtmOutboundEntry 2 }
pwAtmOutboundVci OBJECT-TYPE
SYNTAX AtmVcIdentifier
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"VCI value of this ATM PW. The value may indicate the
translated value when egress generates new VCI."
::= { pwAtmOutboundEntry 3 }
pwAtmOutboundTrafficParamDescr OBJECT-TYPE
SYNTAX RowPointer MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object represents a pointer to an ATM
traffic-parameter-specific row in either a private or
standard table that will be employed while receiving
cells from the ATM network. This row should contain a
set of self-consistent ATM traffic parameters including
the ATM traffic service category.
A value of 0.0 indicates Best Effort."
::= { pwAtmOutboundEntry 4 }
pwAtmOutboundRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object is used to create, modify, or delete a row in
this table. Unless otherwise specified, all writeable
objects in this table MUST NOT be changed after row
activation as explained in the pwAtmOutboundEntry. "
::= { pwAtmOutboundEntry 5 }
-- End of ATM PW Outbound Table
-- ATM PW CE Bound(Inbound) Table for 1 to 1 mode
pwAtmInboundTable OBJECT-TYPE
SYNTAX SEQUENCE OF PwAtmInboundEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table specifies the information for an ATM PW in the
inbound direction."
::= { pwAtmObjects 3 }
pwAtmInboundEntry OBJECT-TYPE
SYNTAX PwAtmInboundEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A row in this table represents an ATM PW that needs to be
sent into the ATM network after reconstructing cells from
packets received from a PSN. This table is indexed by
pwIndex from pwTable. An entry is created in this table
for every entry in the pwTable with a
pwType equal to one of the following:
atmAal5SduVcc(2), atmCell1to1Vcc(12), atmCell1to1Vpc(13),
atmAal5PduVcc(14), or atmTransparent(3). Unless otherwise
specified, all writeable objects in this table MUST NOT
be changed after row activation in the generic pwTable,
and values must persist after reboot."
REFERENCE
"See [PWMIB]."
INDEX { pwIndex }
::= { pwAtmInboundTable 1 }
PwAtmInboundEntry ::= SEQUENCE {
pwAtmInboundAtmIf InterfaceIndex,
pwAtmInboundVpi AtmVpIdentifier,
pwAtmInboundVci AtmVcIdentifier,
pwAtmInboundTrafficParamDescr RowPointer,
pwAtmInboundRowStatus RowStatus
}
pwAtmInboundAtmIf OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The ATM Interface that sends cells into the ATM network
after reconstructing cells from packets received from
a PSN."
::= { pwAtmInboundEntry 1 }
pwAtmInboundVpi OBJECT-TYPE
SYNTAX AtmVpIdentifier
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"VPI value of this ATM PW.
If the pwType is atmTransparent, then the value will
be set to zero."
::= { pwAtmInboundEntry 2 }
pwAtmInboundVci OBJECT-TYPE
SYNTAX AtmVcIdentifier
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"VCI value of this ATM PW.
If the pwType is atmTransparent, atmCell1to1Vpc, or
atmCellNto1Vpc, then the value will be set to zero."
::= { pwAtmInboundEntry 3 }
pwAtmInboundTrafficParamDescr OBJECT-TYPE
SYNTAX RowPointer
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object represents a pointer to an ATM traffic-parameter-
specific row in either a private or standard table that will
be employed while transmitting into the ATM network. This
table contains a set of self-consistent ATM traffic parameters
including the ATM traffic service category. A value of 0.0
indicates Best Effort."
::= { pwAtmInboundEntry 4 }
pwAtmInboundRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object is used to create, modify, or delete a row in
this table. Unless otherwise specified, all writeable
objects in this table MUST NOT be changed after row
activation as explained in the pwAtmInboundEntry. "
::= { pwAtmInboundEntry 5 }
-- End of ATM PW Inbound Table
--Generic ATM PW table for all types of ATM PW connection.
pwAtmCfgTable OBJECT-TYPE
SYNTAX SEQUENCE OF PwAtmCfgEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table specifies generic information for an ATM PW
to be carried over PSN in any mode."
::= { pwAtmObjects 5 }
pwAtmCfgEntry OBJECT-TYPE
SYNTAX PwAtmCfgEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains a set of parameters for
the ATM PW that needs to be adapted and carried
over the PSN. This table is indexed by pwIndex from
pwTable. An entry is created for every new ATM
type associated pwIndex in the pwTable. Unless
otherwise specified, all read-write objects in
this table MAY be changed when the PW is defined
as not active, and all RW objects values must
persist after reboot."
REFERENCE
"See [PWMIB]."
INDEX { pwIndex }
::= { pwAtmCfgTable 1 }
PwAtmCfgEntry ::= SEQUENCE {
pwAtmCfgMaxCellConcatenation Unsigned32,
pwAtmCfgFarEndMaxCellConcatenation Unsigned32,
pwAtmCfgTimeoutMode INTEGER,
pwAtmClpQosMapping TruthValue
}
pwAtmCfgMaxCellConcatenation OBJECT-TYPE
SYNTAX Unsigned32 (1..29)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The maximum number of ATM cells that can be
concatenated into one PW packet towards the PSN.
In a non-LDP or other signaling protocol environment,
this object MAY be changed at anytime, but traffic
might be interrupted; otherwise, it may be changed
when PW is not active."
::= { pwAtmCfgEntry 1 }
pwAtmCfgFarEndMaxCellConcatenation OBJECT-TYPE
SYNTAX Unsigned32 (1..29)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The maximum number of ATM cells that can be
concatenated into one PW packet towards PSN as reported by
the far end. If there is no LDP in use, the object will
either return a value of 0 or allow setting it for calculating
protocol overhead."
::= { pwAtmCfgEntry 2 }
pwAtmCfgTimeoutMode OBJECT-TYPE
SYNTAX INTEGER
{
notApplicable (1),
disabled (2),
enabled (3)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object determines whether or not a packet can be
transmitted to the PSN based on timeout expiration
for collecting cells. The actual handling of the
timeout is implementation-specific; as such,
this object may be changed at any time under proper
consideration of the traffic interruption effect."
::= { pwAtmCfgEntry 3 }
pwAtmClpQosMapping OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object indicates whether the Cell Loss Priority
(CLP) bits should be considered when setting the
value in the Quality-of-Service fields of the
encapsulating protocol (e.g., EXP fields of the
MPLS Label Stack). Selecting True allows the drop
precedence to be preserved across the PSN. In
transparent cell transport, the value of this object
MUST be false(2); in other cases, it can be changed
at any time."
REFERENCE
"See section 12 of [ATMENCAP]."
::= { pwAtmCfgEntry 4 }
-- Device capable of implementing N:1, 1:1, and transparent cell -- mode assumes to support the N:1 table for all -- modes with respective applicable setting. -- In such implementation, user can create an entry for either -- 1:1 or transparent cell transport modes only -- in pwAtmInboundNto1Table. The side effect of such -- will be an automatic create of the respective line in the -- pwAtmOutboundNto1Table.
-- ATM PW Outbound Table for N to 1 connection
pwAtmOutboundNto1Table OBJECT-TYPE
SYNTAX SEQUENCE OF PwAtmOutboundNto1Entry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table specifies the information for an ATM PW to
be carried over the PSN in the outbound direction. Up to
N entries can be created in this table for every
entry in the pwTable with a pwType equal to:
atmCellNto1Vcc(9) or atmCellNto1Vpc(10).
An entry can be created only when the VP/VC are known.
A single entry will be created in this table for every
entry in the pwTable with a pwType equal to
one of the following: atmCell1to1Vcc(12),
atmCell1to1Vpc(13), atmAal5PduVcc(14),
atmAal5SduVcc(2), or atmTransparent(3).
"
::= { pwAtmObjects 6 }
pwAtmOutboundNto1Entry OBJECT-TYPE
SYNTAX PwAtmOutboundNto1Entry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A row in this table represents an ATM PW that needs to be
adapted and carried over PSN. This table is indexed by
pwIndex from pwTable and the ATM interface with VPL/VCLs.
In atmTransparent(3), Vpi and VCi will be 0xFFFF
during set operation.
Unless otherwise specified, all read-create objects in this
table MUST NOT be changed after row activation
and SHOULD remain unchanged after reboot."
INDEX { pwIndex, pwAtmOutboundNto1AtmIf ,
pwAtmOutboundNto1Vpi,
pwAtmOutboundNto1Vci }
::= { pwAtmOutboundNto1Table 1 }
PwAtmOutboundNto1Entry ::= SEQUENCE {
pwAtmOutboundNto1AtmIf InterfaceIndex, pwAtmOutboundNto1Vpi AtmVpIdentifier, pwAtmOutboundNto1Vci AtmVcIdentifier, pwAtmOutboundNto1RowStatus RowStatus, pwAtmOutboundNto1TrafficParamDescr RowPointer, pwAtmOutboundNto1MappedVpi AtmVpIdentifier, pwAtmOutboundNto1MappedVci AtmVcIdentifier }
pwAtmOutboundNto1AtmIf OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The ATM Interface that receives cells from the ATM network."
::= { pwAtmOutboundNto1Entry 1 }
pwAtmOutboundNto1Vpi OBJECT-TYPE
SYNTAX AtmVpIdentifier
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"VPI value of this ATM PW. In atmTransparent(3),
Vpi will be the equivalent of 0xFFFF."
::= { pwAtmOutboundNto1Entry 2 }
pwAtmOutboundNto1Vci OBJECT-TYPE
SYNTAX AtmVcIdentifier
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"VCI value of this ATM PW. In atmTransparent(3), or
the VP case, the value will be the equivalent of
0xFFFF."
::= { pwAtmOutboundNto1Entry 3 }
pwAtmOutboundNto1RowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object is used to create, modify or delete a row in
this table."
::= { pwAtmOutboundNto1Entry 4 }
pwAtmOutboundNto1TrafficParamDescr OBJECT-TYPE
SYNTAX RowPointer
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object represents a pointer to an ATM traffic-parameter-
specific row in either private or standard table that will
be employed while receiving cells from the ATM network.
This table should contain a set
of self-consistent ATM traffic parameters including the ATM
traffic service category. A value of 0.0 indicates Best
Effort."
::= { pwAtmOutboundNto1Entry 5 }
pwAtmOutboundNto1MappedVpi OBJECT-TYPE
SYNTAX AtmVpIdentifier
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The egress-generated VPI value of this ATM PW. The
entry is valid for PW type of atmCellNto1Vcc(9),
atmCellNto1Vpc(10), atmCell1to1Vcc(12), or
atmCell1to1Vpc(13). In other types, the value will be the
equivalent of 0xFFFF. Value MAY be changed when the
PW is defined as not active. "
::= { pwAtmOutboundNto1Entry 6 }
pwAtmOutboundNto1MappedVci OBJECT-TYPE
SYNTAX AtmVcIdentifier
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The egress-generated VCI value of this ATM PW. The
entry is valid for PW type of atmCellNto1Vcc(9),
atmCellNto1Vpc(10), atmCell1to1Vcc(12), or
atmCell1to1Vpc(13. In the VP case or other types, the
value will be the equivalent of 0xFFFF.
Value MAY be changed when the PW is defined
as not active."
::= { pwAtmOutboundNto1Entry 7 }
-- ATM PW Inbound Table for N to 1 connection
pwAtmInboundNto1Table OBJECT-TYPE
SYNTAX SEQUENCE OF PwAtmInboundNto1Entry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table specifies the information for an ATM PW to
be carried over PSN in the Inbound direction. Up to
N entries can be created in this table for every
entry in the pwTable with a pwType equal to:
atmCellNto1Vcc(9) or atmCellNto1Vpc(10).
An entry can be created only when the VP/VC are known.
A single entry will be created in this table for every
entry in the pwTable with a pwType equal to
one of the following: atmCell1to1Vcc(12),
atmCell1to1Vpc(13), atmAal5PduVcc(14),
atmAal5SduVcc(2), or atmTransparent(3)."
::= { pwAtmObjects 7 }
pwAtmInboundNto1Entry OBJECT-TYPE
SYNTAX PwAtmInboundNto1Entry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A row in this table represents an ATM PW that needs to be
adapted and carried over PSN. This table is indexed by
pwIndex from pwTable and the ATM interface with VPL/VCLs.
In atmTransparent(3), Vpi and VCi will be 0xFFFF
during set operation.
Unless otherwise specified, all Read-Create objects in this
table MUST NOT be changed after row activation
and SHOULD remain unchanged after reboot."
INDEX { pwIndex, pwAtmInboundNto1AtmIf ,
pwAtmInboundNto1Vpi,
pwAtmInboundNto1Vci
}
::= { pwAtmInboundNto1Table 1 }
PwAtmInboundNto1Entry ::= SEQUENCE {
pwAtmInboundNto1AtmIf InterfaceIndex, pwAtmInboundNto1Vpi AtmVpIdentifier, pwAtmInboundNto1Vci AtmVcIdentifier, pwAtmInboundNto1RowStatus RowStatus, pwAtmInboundNto1TrafficParamDescr RowPointer, pwAtmInboundNto1MappedVpi AtmVpIdentifier, pwAtmInboundNto1MappedVci AtmVcIdentifier }
pwAtmInboundNto1AtmIf OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The ATM Interface that receives cells from the ATM network."
::= { pwAtmInboundNto1Entry 1 }
pwAtmInboundNto1Vpi OBJECT-TYPE
SYNTAX AtmVpIdentifier
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"VPI value of this ATM PW. In atmTransparent(3),
Vpi will be the equivalent of 0xFFFF."
::= { pwAtmInboundNto1Entry 2 }
pwAtmInboundNto1Vci OBJECT-TYPE
SYNTAX AtmVcIdentifier
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"VCI value of this ATM PW. In atmTransparent(3), or
the VP case, the value will be the equivalent of
0xFFFF."
::= { pwAtmInboundNto1Entry 3 }
pwAtmInboundNto1RowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object is used to create, modify, or delete a row in
this table."
::= { pwAtmInboundNto1Entry 4 }
pwAtmInboundNto1TrafficParamDescr OBJECT-TYPE
SYNTAX RowPointer
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object represents a pointer to an ATM traffic-parameter-
specific row in either a private or standard table that will
be employed while receiving cells from the ATM network.
This table should contain a set
of self-consistent ATM traffic parameters including the ATM
traffic service category. A value of 0.0 indicates Best
Effort."
::= { pwAtmInboundNto1Entry 5 }
pwAtmInboundNto1MappedVpi OBJECT-TYPE
SYNTAX AtmVpIdentifier
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The generated VPI value of this ATM PW. The
entry is valid for PW type of atmCellNto1Vcc(9),
atmCellNto1Vpc(10), atmCell1to1Vcc(12), or
atmCell1to1Vpc(13). In other types, the value will be the
equivalent of 0xFFFF. Value MAY be changed when the
PW is defined as not active."
::= { pwAtmInboundNto1Entry 6 }
pwAtmInboundNto1MappedVci OBJECT-TYPE
SYNTAX AtmVcIdentifier
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The generated VCI value of this ATM PW. The
entry is valid for PW type of atmCellNto1Vcc(9),
atmCellNto1Vpc(10), atmCell1to1Vcc(12), or
atmCell1to1Vpc(13. In the VP case or other types, the
value will be the equivalent of 0xFFFF.
Value MAY be changed when the
PW is defined as not active."
::= { pwAtmInboundNto1Entry 7 }
-- ATM PW Outbound Perf Table
-- The following supplement the counters presented in the -- PW generic MIB
-- ATM PW Performance Current Table.
pwAtmPerfCurrentTable OBJECT-TYPE
SYNTAX SEQUENCE OF PwAtmPerfCurrentEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The current 15-minute interval counts are in
this table.
This table provides performance information per ATM PW."
::= { pwAtmObjects 8 }
pwAtmPerfCurrentEntry OBJECT-TYPE
SYNTAX PwAtmPerfCurrentEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table is created by the agent for every
pwAtmCfgTable entry. After 15 minutes, the contents of this
table entry are copied to a new entry in the
pwAtmPerfInterval table and the counts in this entry
are reset to zero."
INDEX { pwIndex }
::= { pwAtmPerfCurrentTable 1 }
PwAtmPerfCurrentEntry ::= SEQUENCE {
pwAtmPerfCurrentMissingPkts PerfCurrentCount, pwAtmPerfCurrentPktsReOrder PerfCurrentCount, pwAtmPerfCurrentPktsMisOrder PerfCurrentCount, pwAtmPerfCurrentPktsTimeout PerfCurrentCount, pwAtmPerfCurrentCellsXmit PerfCurrentCount, pwAtmPerfCurrentCellsDropped PerfCurrentCount, pwAtmPerfCurrentCellsReceived PerfCurrentCount, pwAtmPerfCurrentUnknownCells PerfCurrentCount }
pwAtmPerfCurrentMissingPkts OBJECT-TYPE
SYNTAX PerfCurrentCount MAX-ACCESS read-only STATUS current
DESCRIPTION
"Number of missing packets (as detected via control word
sequence number gaps)."
::= { pwAtmPerfCurrentEntry 1 }
pwAtmPerfCurrentPktsReOrder OBJECT-TYPE
SYNTAX PerfCurrentCount
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of packets detected out of sequence (via control
word sequence number), but successfully re-ordered.
Note: some implementations may not support this feature."
::= { pwAtmPerfCurrentEntry 2 }
pwAtmPerfCurrentPktsMisOrder OBJECT-TYPE
SYNTAX PerfCurrentCount MAX-ACCESS read-only STATUS current DESCRIPTION "Number of packets detected out of order (via control word sequence numbers)."
- = { pwAtmPerfCurrentEntry 3 }
pwAtmPerfCurrentPktsTimeout OBJECT-TYPE
SYNTAX PerfCurrentCount MAX-ACCESS read-only STATUS current DESCRIPTION "Number of packets transmitted due to timeout expiration while attempting to collect cells."
- = { pwAtmPerfCurrentEntry 4 }
pwAtmPerfCurrentCellsXmit OBJECT-TYPE
SYNTAX PerfCurrentCount MAX-ACCESS read-only STATUS current DESCRIPTION "Number of transmitted cells."
- = { pwAtmPerfCurrentEntry 5 }
pwAtmPerfCurrentCellsDropped OBJECT-TYPE
SYNTAX PerfCurrentCount MAX-ACCESS read-only STATUS current DESCRIPTION "Number of dropped cells."
- = { pwAtmPerfCurrentEntry 6 }
pwAtmPerfCurrentCellsReceived OBJECT-TYPE
SYNTAX PerfCurrentCount MAX-ACCESS read-only STATUS current DESCRIPTION "Number of received cells."
- = { pwAtmPerfCurrentEntry 7 }
pwAtmPerfCurrentUnknownCells OBJECT-TYPE
SYNTAX PerfCurrentCount MAX-ACCESS read-only STATUS current DESCRIPTION "Number of cells received from the PSN with unknown VPI or VCI values. This object is relevant only in N:1 mode."
- = { pwAtmPerfCurrentEntry 8 }
-- End ATM PW Performance Current Interval Table
-- ATM PW Performance Interval Table.
pwAtmPerfIntervalTable OBJECT-TYPE
SYNTAX SEQUENCE OF PwAtmPerfIntervalEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table provides performance information per ATM PW
similar to the pwAtmPerfCurrentTable above. However,
these counts represent historical 15 minute intervals.
Typically, this table will have a maximum of 96 entries
for a 24 hour period. "
::= { pwAtmObjects 9 }
pwAtmPerfIntervalEntry OBJECT-TYPE
SYNTAX PwAtmPerfIntervalEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table is created by the agent for
every pwAtmPerfCurrentEntry that is 15 minutes old.
The contents of the Current entry are copied to the new
entry here. The Current entry then resets its counts
to zero for the next current 15 minute interval. "
INDEX { pwIndex, pwAtmPerfIntervalNumber }
::= { pwAtmPerfIntervalTable 1 }
PwAtmPerfIntervalEntry ::= SEQUENCE {
pwAtmPerfIntervalNumber Unsigned32,
pwAtmPerfIntervalValidData TruthValue, pwAtmPerfIntervalDuration Unsigned32, pwAtmPerfIntervalMissingPkts PerfIntervalCount, pwAtmPerfIntervalPktsReOrder PerfIntervalCount, pwAtmPerfIntervalPktsMisOrder PerfIntervalCount, pwAtmPerfIntervalPktsTimeout PerfIntervalCount, pwAtmPerfIntervalCellsXmit PerfIntervalCount, pwAtmPerfIntervalCellsDropped PerfIntervalCount, pwAtmPerfIntervalCellsReceived PerfIntervalCount, pwAtmPerfIntervalUnknownCells PerfIntervalCount }
pwAtmPerfIntervalNumber OBJECT-TYPE
SYNTAX Unsigned32 (1..96)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A number (normally between 1 and 96 to cover a 24 hour
period) that identifies the interval for which the set
of statistics is available. The interval identified by 1
is the most recently completed 15 minute interval, and
the interval identified by N is the interval immediately
preceding the one identified by N-1. The minimum range of
N is 1 through 4. The default range is 1 through 32. The
maximum value of N is 96."
::= { pwAtmPerfIntervalEntry 1 }
pwAtmPerfIntervalValidData OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This variable indicates if the data for this interval
is valid."
::= { pwAtmPerfIntervalEntry 2 }
pwAtmPerfIntervalDuration OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-only STATUS current DESCRIPTION
"The duration of a particular interval in seconds. Adjustments in the system's time-of-day clock, may cause the interval to be greater or less than the normal value. Therefore, this actual interval value is provided."
- = { pwAtmPerfIntervalEntry 3 }
pwAtmPerfIntervalMissingPkts OBJECT-TYPE
SYNTAX PerfIntervalCount
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of missing packets (as detected via control
word sequence number gaps)."
::= { pwAtmPerfIntervalEntry 4 }
pwAtmPerfIntervalPktsReOrder OBJECT-TYPE
SYNTAX PerfIntervalCount
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of packets detected out of sequence (via control
word sequence number), but successfully re-ordered.
Note: some implementations may not support this
feature."
::= { pwAtmPerfIntervalEntry 5 }
pwAtmPerfIntervalPktsMisOrder OBJECT-TYPE
SYNTAX PerfIntervalCount
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of packets detected out of order (via control word
sequence numbers)."
::= { pwAtmPerfIntervalEntry 6 }
pwAtmPerfIntervalPktsTimeout OBJECT-TYPE
SYNTAX PerfIntervalCount MAX-ACCESS read-only STATUS current DESCRIPTION "Number of packets transmitted due to timeout expiration."
- = { pwAtmPerfIntervalEntry 7 }
pwAtmPerfIntervalCellsXmit OBJECT-TYPE
SYNTAX PerfIntervalCount MAX-ACCESS read-only STATUS current DESCRIPTION "Number of transmitted cells."
- = { pwAtmPerfIntervalEntry 8 }
pwAtmPerfIntervalCellsDropped OBJECT-TYPE
SYNTAX PerfIntervalCount MAX-ACCESS read-only
STATUS current DESCRIPTION "Number of dropped cells."
- = { pwAtmPerfIntervalEntry 9 }
pwAtmPerfIntervalCellsReceived OBJECT-TYPE
SYNTAX PerfIntervalCount MAX-ACCESS read-only STATUS current DESCRIPTION "Number of received cells."
- = { pwAtmPerfIntervalEntry 10 }
pwAtmPerfIntervalUnknownCells OBJECT-TYPE
SYNTAX PerfIntervalCount MAX-ACCESS read-only STATUS current DESCRIPTION "Number of cells received from the PSN with unknown VPI or VCI values. This object is relevant only in N:1 mode."
- = { pwAtmPerfIntervalEntry 11 }
-- End ATM PW Performance Interval Table
-- ATM PW 1day Performance Table
pwAtmPerf1DayIntervalTable OBJECT-TYPE
SYNTAX SEQUENCE OF PwAtmPerf1DayIntervalEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table provides performance information per ATM PW
similar to the pwAtmPerfIntervalTable above. However,
these counters represent historical one-day intervals up to
one full month."
::= { pwAtmObjects 10 }
pwAtmPerf1DayIntervalEntry OBJECT-TYPE
SYNTAX PwAtmPerf1DayIntervalEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry is created in this table by the agent
for every entry in the pwAtmCfgTable table."
INDEX { pwIndex,pwAtmPerf1DayIntervalNumber }
::= { pwAtmPerf1DayIntervalTable 1 }
PwAtmPerf1DayIntervalEntry ::= SEQUENCE {
pwAtmPerf1DayIntervalNumber Unsigned32, pwAtmPerf1DayIntervalValidData TruthValue, pwAtmPerf1DayIntervalDuration Unsigned32, pwAtmPerf1DayIntervalMissingPkts Counter32, pwAtmPerf1DayIntervalPktsReOrder Counter32, pwAtmPerf1DayIntervalPktsMisOrder Counter32, pwAtmPerf1DayIntervalPktsTimeout Counter32, pwAtmPerf1DayIntervalCellsXmit Counter32, pwAtmPerf1DayIntervalCellsDropped Counter32, pwAtmPerf1DayIntervalCellsReceived Counter32, pwAtmPerf1DayIntervalUnknownCells Counter32 }
pwAtmPerf1DayIntervalNumber OBJECT-TYPE
SYNTAX Unsigned32 (1..365)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The number of intervals, where 1 indicates current day
measured period and 2 and above indicate previous days,
respectively."
::= { pwAtmPerf1DayIntervalEntry 1 }
pwAtmPerf1DayIntervalValidData OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object indicates if the data for this interval
is valid."
::= { pwAtmPerf1DayIntervalEntry 2 }
pwAtmPerf1DayIntervalDuration OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The duration of a particular interval in seconds.
Adjustments in the system's time-of-day clock may
cause the interval to be greater or less than the
normal value. Therefore, this actual interval value
is provided."
::= { pwAtmPerf1DayIntervalEntry 3 }
pwAtmPerf1DayIntervalMissingPkts OBJECT-TYPE
SYNTAX Counter32 MAX-ACCESS read-only STATUS current
DESCRIPTION
"Number of missing packets (as detected via control word
sequence number gaps)."
::= { pwAtmPerf1DayIntervalEntry 4 }
pwAtmPerf1DayIntervalPktsReOrder OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of packets detected out of sequence (via control
word sequence number), but successfully re-ordered.
Note: some implementations may not support this
feature."
::= { pwAtmPerf1DayIntervalEntry 5 }
pwAtmPerf1DayIntervalPktsMisOrder OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of packets detected out of order (via control word
sequence numbers) and that could not be re-ordered."
::= { pwAtmPerf1DayIntervalEntry 6 }
pwAtmPerf1DayIntervalPktsTimeout OBJECT-TYPE
SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of packets transmitted due to timeout expiration."
- = { pwAtmPerf1DayIntervalEntry 7 }
pwAtmPerf1DayIntervalCellsXmit OBJECT-TYPE
SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of transmitted cells."
- = { pwAtmPerf1DayIntervalEntry 8 }
pwAtmPerf1DayIntervalCellsDropped OBJECT-TYPE
SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of dropped cells."
- = { pwAtmPerf1DayIntervalEntry 9 }
pwAtmPerf1DayIntervalCellsReceived OBJECT-TYPE
SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of received cells."
- = { pwAtmPerf1DayIntervalEntry 10 }
pwAtmPerf1DayIntervalUnknownCells OBJECT-TYPE
SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of cells received from the PSN with unknown VPI or VCI values. This object is relevant only in N:1 mode."
- = { pwAtmPerf1DayIntervalEntry 11 }
-- End of ATM PW Performance table
pwAtmCompliances OBJECT IDENTIFIER ::= { pwAtmConformance 1 }
pwAtmGroups OBJECT IDENTIFIER ::= { pwAtmConformance 2 }
pwAtmCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for agents that support
ATM PW."
MODULE -- this module
MANDATORY-GROUPS { pwAtmCfgGroup,
pwAtmPerfGroup
}
OBJECT pwAtmCfgFarEndMaxCellConcatenation
MIN-ACCESS read-only
DESCRIPTION
"The ability to set this object
is not required."
GROUP pwAtmOutbound1to1Group
DESCRIPTION "This group is mandatory only for implementations
that support the ATM PW 1:1 mode and not using
the Nto1 table."
GROUP pwAtmInbound1to1Group
DESCRIPTION "This group is mandatory only for implementations
that support the ATM PW 1:1 mode and not using
the Nto1 table."
GROUP pwAtmOutboundNto1Group
DESCRIPTION "This group is mandatory only for implementations
that support the ATM PW N:1 and transparent mode."
GROUP pwAtmInboundNto1Group
DESCRIPTION "This group is mandatory only for implementations
that support the ATM PW N:1 and transparent mode."
::= { pwAtmCompliances 2 }
-- Units of conformance.
pwAtmCfgGroup OBJECT-GROUP
OBJECTS {pwAtmCfgMaxCellConcatenation,
pwAtmCfgFarEndMaxCellConcatenation,
pwAtmCfgTimeoutMode,
pwAtmClpQosMapping
}
STATUS current
DESCRIPTION
"Collection of objects for basic ATM PW
configuration."
::= { pwAtmGroups 5 }
pwAtmPerfGroup OBJECT-GROUP
OBJECTS {pwAtmPerfCurrentMissingPkts,
pwAtmPerfCurrentPktsReOrder,
pwAtmPerfCurrentPktsMisOrder,
pwAtmPerfCurrentPktsTimeout,
pwAtmPerfCurrentCellsXmit,
pwAtmPerfCurrentCellsDropped,
pwAtmPerfCurrentCellsReceived,
pwAtmPerfCurrentUnknownCells,
pwAtmPerfIntervalValidData,
pwAtmPerfIntervalDuration,
pwAtmPerfIntervalMissingPkts,
pwAtmPerfIntervalPktsReOrder,
pwAtmPerfIntervalPktsMisOrder,
pwAtmPerfIntervalPktsTimeout,
pwAtmPerfIntervalCellsXmit,
pwAtmPerfIntervalCellsDropped,
pwAtmPerfIntervalCellsReceived,
pwAtmPerfIntervalUnknownCells,
pwAtmPerf1DayIntervalValidData,
pwAtmPerf1DayIntervalDuration,
pwAtmPerf1DayIntervalMissingPkts,
pwAtmPerf1DayIntervalPktsReOrder,
pwAtmPerf1DayIntervalPktsMisOrder,
pwAtmPerf1DayIntervalPktsTimeout,
pwAtmPerf1DayIntervalCellsXmit,
pwAtmPerf1DayIntervalCellsDropped,
pwAtmPerf1DayIntervalCellsReceived,
pwAtmPerf1DayIntervalUnknownCells
}
STATUS current
DESCRIPTION
"Collection of objects for basic ATM PW Performance."
::= { pwAtmGroups 6 }
pwAtmOutbound1to1Group OBJECT-GROUP
OBJECTS {pwAtmOutboundAtmIf,
pwAtmOutboundVpi,
pwAtmOutboundVci,
pwAtmOutboundTrafficParamDescr,
pwAtmOutboundRowStatus
}
STATUS current
DESCRIPTION
"Collection of objects for basic 1:1 ATM PW outbound
configuration."
::= { pwAtmGroups 7 }
pwAtmInbound1to1Group OBJECT-GROUP
OBJECTS {pwAtmInboundAtmIf,
pwAtmInboundVpi,
pwAtmInboundVci,
pwAtmInboundTrafficParamDescr,
pwAtmInboundRowStatus
}
STATUS current
DESCRIPTION
"Collection of objects for basic 1:1 ATM PW inbound
configuration."
::= { pwAtmGroups 8 }
pwAtmOutboundNto1Group OBJECT-GROUP
OBJECTS {pwAtmOutboundNto1RowStatus,
pwAtmOutboundNto1TrafficParamDescr,
pwAtmOutboundNto1MappedVpi,
pwAtmOutboundNto1MappedVci
}
STATUS current
DESCRIPTION
"Collection of objects for N:1, 1:1, or transparent
ATM PW outbound configuration."
::= { pwAtmGroups 9 }
pwAtmInboundNto1Group OBJECT-GROUP
OBJECTS {pwAtmInboundNto1RowStatus,
pwAtmInboundNto1TrafficParamDescr,
pwAtmInboundNto1MappedVpi,
pwAtmInboundNto1MappedVci
}
STATUS current
DESCRIPTION
"Collection of objects for N:1, 1:1, or transparent
ATM PW inbound configuration."
::= { pwAtmGroups 10 }
END
10. Security Considerations
There are a number of management objects defined in this MIB module with a MAX-ACCESS clause of read-write and/or read-create. Such objects may be considered sensitive or vulnerable in some network environments. The support for SET operations in a non-secure environment without proper protection can have a negative effect on network operations. These are the tables and objects and their sensitivity/vulnerability:
The pwAtmOutboundTable, pwAtmInboundTable, pwAtmCfgTable, pwAtmOutboundNto1Table, and pwAtmInboundNto1Table contain objects of ATM PW parameters on a Provider Edge (PE) device. Unauthorized access to objects in these tables could result in disruption of traffic on the network.
The use of stronger mechanisms such as SNMPv3 security should be considered where possible. Specifically, SNMPv3 VACM and USM MUST be used with any SNMPV3 agent, which implements this MIB module. Administrators should consider whether read access to these objects should be allowed, since read access may be undesirable under certain circumstances.
Some of the readable objects in this MIB module (i.e., objects with a MAX-ACCESS other than not-accessible) may be considered sensitive or vulnerable in some network environments. It is thus important to control even GET and/or NOTIFY access to these objects and possibly to even encrypt the values of these objects when sending them over the network via SNMP. These are the tables and objects and their sensitivity/vulnerability:
The pwATMCfgTable, pwAtmPerfCurrentTable, pwAtmPerfIntervalTable, and pwAtmPerf1DayIntervalTable collectively show the ATM pseudowire connectivity topology and its performance characteristics.
If an Administrator does not want to reveal this information, then these tables should be considered sensitive/vulnerable.
SNMP versions prior to SNMPv3 did not include adequate security. Even if the network itself is secure (for example by using IPsec), even then, there is no control as to who on the secure network is allowed to access and GET/SET (read/change/create/delete) the objects in this MIB module.
It is RECOMMENDED that implementers consider the security features as provided by the SNMPv3 framework (see RFC3410, section 8), including full support for the SNMPv3 cryptographic mechanisms (for authentication and privacy).
Further, deployment of SNMP versions prior to SNMPv3 is NOT RECOMMENDED. Instead, it is RECOMMENDED to deploy SNMPv3 and to enable cryptographic security. It is then a customer/operator responsibility to ensure that the SNMP entity giving access to an instance of this MIB module is properly configured to give access to the objects only to those principals (users) that have legitimate rights to indeed GET or SET (change/create/delete) them.
11. IANA Considerations
The MIB module in this document uses the following IANA-assigned OBJECT IDENTIFIER values recorded in the SMI Numbers registry:
Descriptor OBJECT IDENTIFIER value
-----------------------
pwATMMIB { mib-2 183 }
12. References
12.1. Normative References
[PWTC] Nadeau, T., Ed., Zelig, D., Ed., and O. Nicklass, Ed.,
"Definitions of Textual Conventions for Pseudowire (PW)
Management", RFC 5542, May 2009.
[PWMIB] Nadeau, T., Ed. and D. Zelig, Ed., "Pseudowire (PW)
Management Information Base (MIB)", RFC 5601, July 2009.
[PWMPLSMIB] Zelig, D., Ed. and T. Nadeau, Ed., "Pseudowire (PW) over
MPLS PSN Management Information Base (MIB)", RFC 5602, July 2009.
[ATMENCAP] Martini, L., Jayakumar, J., Bocci, M., El-Aawar, N.,
Brayley, J., and G. Koleyni, "Encapsulation Methods for
Transport of Asynchronous Transfer Mode (ATM) over MPLS
Networks", RFC 4717, December 2006.
[ATMTRANS] Malis, A., Martini, L., Brayley, J., and T. Walsh,
"Pseudowire Emulation Edge-to-Edge (PWE3) Asynchronous
Transfer Mode (ATM) Transparent Cell Transport Service",
RFC 4816, February 2007.
[AToM] Tesink, K., "Definitions of Managed Objects for ATM
Management", RFC 2515, February 1999.
[AToMTC] Noto, M., Spiegel, E., and K. Tesink, "Definitions of
Textual Conventions and OBJECT-IDENTITIES for ATM
Management", RFC 2514, February 1999.
[LDPMIB] Cucchiara, J., Sjostrand, H., and J. Luciani,
"Definitions of Managed Objects for the Multiprotocol
Label Switching (MPLS), Label Distribution Protocol
(LDP)", RFC 3815, June 2004.
[TEMIB] Srinivasan, C., Viswanathan, A., and T. Nadeau,
"Multiprotocol Label Switching (MPLS) Traffic
Engineering (TE) Management Information Base (MIB)",
RFC 3812, June 2004.
[IFMIB] McCloghrie, K. and F. Kastenholz, "The Interfaces Group
MIB", RFC 2863, June 2000.
RFC2578 McCloghrie, K., Ed., Perkins, D., Ed., and J.
Schoenwaelder, Ed., "Structure of Management Information
Version 2 (SMIv2)", STD 58, RFC 2578, April 1999.
RFC2579 McCloghrie, K., Ed., Perkins, D., Ed., and J.
Schoenwaelder, Ed., "Textual Conventions for SMIv2",
STD 58, RFC 2579, April 1999.
RFC2580 McCloghrie, K., Perkins, D., and J. Schoenwaelder,
"Conformance Statements for SMIv2", STD 58, RFC 2580, April 1999.
[BCP14] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
12.2. Informative References
[PWREQ] Xiao, X., McPherson, D., and P. Pate, "Requirements for
Pseudo-Wire Emulation Edge-to-Edge (PWE3)", RFC 3916, September 2004.
[PWARCH] Bryant, S. and P. Pate, "Pseudo Wire Emulation Edge-to-
Edge (PWE3) Architecture", RFC 3985, March 2005.
RFC3410 Case, J., Mundy, R., Partain, D., and B. Stewart,
"Introduction and Applicability Statements for Internet-
Standard Management Framework", RFC 3410, December 2002.
13. Acknowledgements
This document was produced by the PWE3 Working Group. Special thanks to Senthilkumar Sathappan and Marichetty Venkatesan for their initial contribution and to Bert Wijnen for close review and good suggestions.
Authors' Addresses
Orly Nicklass RADVISION Ltd. 24 Raul Wallenberg St. Tel Aviv ISRAEL
Phone: +972 3 7679444 EMail: [email protected]
Thomas D. Nadeau BT BT Centre 81 Newgate Street London EC1A 7AJ United Kingdom
EMail: [email protected]
