RFC3637
Network Working Group C.M. Heard, Ed. Request for Comments: 3637 Consultant Category: Standards Track September 2003
Definitions of Managed Objects
for the Ethernet WAN Interface Sublayer
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 (2003). All Rights Reserved.
Abstract
This document defines a portion of the Management Information Base (MIB) for use with network management protocols in TCP/IP based internets. In particular, it defines objects for managing the Ethernet Wide Area Network (WAN) Interface Sublayer (WIS).
The MIB module defined in this memo is an extension of the Synchronous Optical Network/Synchronous Digital Hierarchy (SONET/SDH) Interface MIB and is implemented in conjunction with it and with the Ethernet-like Interface MIB, the 802.3 Medium Attachment Unit MIB, the Interfaces Group MIB, and the Inverted Stack Table MIB.
3.4.2. Use of ifTable for LLC Layer/MAC Layer
Reconciliation Sublayer/Physical Coding Sublayer 5
3.4.4. Use of ifTable for SONET/SDH Medium/Section/
3.7. Mapping of SNMP Objects to WIS Station Management
Appendix A: Collection of Performance Data Using WIS
Contents
- 1 Conventions
- 2 The Internet-Standard Management Framework
- 3 Overview
- 3.1 Relationship to the SONET/SDH Interface MIB
- 3.2 Relationship to the Ethernet-like Interface MIB
- 3.3 Relationship to the 802.3 MAU MIB
- 3.4 Use of the ifTable
- 3.5 SONET/SDH Terminology
- 3.6 Mapping of IEEE 802.3 Managed Objects
- 3.7 Mapping of SNMP Objects to WIS Station Management Registers
- 3.8 Structure of the MIB Module
- 4 Object Definitions
- 5 Intellectual Property Statement
- 6 Acknowledgments
- 7 Security Considerations
- 8 References
Conventions
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and "OPTIONAL", when they appear in this document, are to be interpreted as described in BCP 14, RFC 2119 RFC2119.
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
The objects defined in this memo are used in conjunction with objects defined in the Interfaces Group MIB RFC2863, the SONET/SDH Interface MIB RFC3592, and the 802.3 MAU MIB RFC3636 to manage the Ethernet Wide Area Network (WAN) Interface Sublayer (WIS) defined in [802.3ae]. The WIS contains functions to perform OC-192c/VC-4-64c framing and scrambling. It resides between the Physical Coding Sublayer (PCS) and the Physical Medium Attachment (PMA) sublayer within a 10GBASE-W 10 Gb/s WAN-compatible physical layer device (PHY) and may be used in conjunction with any of the PCS, PMA, and Physical Medium Dependent (PMD) sublayers defined in [802.3ae] for 10GBASE-W PHYs. Three types of 10GBASE-W PHYs are defined, distinguished by the type of optics employed: 10GBASE-SW, 10GBASE-LW, and 10GBASE-EW. The objects defined in this memo may be used to manage an Ethernet interface employing any type of 10GBASE-W PHY. They do not apply to any other kind of interface. In particular, they do not apply to so-called Ethernet Line Terminating Equipment (ELTE) residing within a SONET network element that uses the 10GBASE-W PMA/PMD sublayers but otherwise acts as SONET Line Terminating Equipment (LTE).
The objects presented here -- along with those incorporated by reference from the Interfaces Group MIB, the SONET/SDH Interface MIB, and the 802.3 MAU MIB -- are intended to provide exact representations of the mandatory attributes in the oWIS managed object class (i.e., the members of the pWISBasic package) defined in Clause 30 and Annex 30A of [802.3ae]. They are also intended to provide approximate representations of the optional attributes (i.e., the members of the pWISOptional package). Some objects with no analogues in oWIS are defined to support WIS testing features required by Clause 50 of [802.3ae].
Relationship to the SONET/SDH Interface MIB
Since the Ethernet WAN Interface Sublayer was designed to be SONET- compatible, information similar to that provided by most of the members of the oWIS managed object class is available from objects defined in the SONET-MIB RFC3592. Thus, the MIB module defined in this memo is a sparse augmentation of the SONET-MIB -- in other words, every table defined here is an extension of some table in the SONET-MIB -- and its compliance statement REQUIRES that an agent implementing the objects defined in this memo also implement the relevant SONET-MIB objects. That includes all objects required by sonetCompliance2 as well as some that it leaves optional.
It should be noted that some of the objects incorporated by reference from the SONET-MIB -- specifically, the threshold objects and interval counter objects -- provide only approximate representations
of the corresponding oWIS attributes, as detailed in Section 3.6. An alternative approach would have been to define new objects to exactly match the oWIS definitions. That approach was rejected because the SONET-MIB objects are already used in deployed systems to manage the SONET sublayers of ATM over SONET and PPP over SONET interfaces, and it was deemed undesirable to use a different scheme to manage the SONET sublayers of 10 Gb/s WAN-compatible Ethernet interfaces. Note that the approach adopted by this memo requires no hardware support beyond that mandated by [802.3ae] subclause 50.3.11.
Relationship to the Ethernet-like Interface MIB
An interface which includes the Ethernet WIS is, by definition, an Ethernet-like interface, and an agent implementing the objects defined in this memo MUST implement the objects required by the dot3Compliance2 compliance statement in the EtherLike-MIB.
Relationship to the 802.3 MAU MIB
Support for the mauModIfCompl3 compliance statement of the MAU-MIB RFC3636 is REQUIRED for all Ethernet-like interfaces. The MAU-MIB is needed in order to allow applications to control and/or determine the media type in use. That is important for devices than can support both the 10GBASE-R 10 Gb/s LAN format (which does not include the WIS) and the 10GBASE-W 10 Gb/s WAN format (which does include the WIS). The MAU-MIB also provides the means to put a device in standby mode or to reset it; the latter may be used to re-initialize the WIS.
Use of the ifTable
This section specifies how the ifTable, as defined in RFC2863, is used for the Ethernet WIS application.
Layering Model
Ethernet interfaces that employ the WIS are layered as defined in [802.3ae]. The corresponding use of the ifTable RFC2863 is shown in the figure below.
_____________________________ _
| LLC Layer | |
+-----------------------------+ |
| MAC Layer | |
+-----------------------------+ > 1 ifEntry
| Reconciliation Sublayer | | ifType: ethernetCsmacd(6)
+-----------------------------+ |
| Physical Coding Sublayer | |
+-----------------------------+ +
| Path Layer | > 1 ifEntry
+-----------------------------+ + ifType: sonetPath(50)
| Line Layer | |
+-----------------------------+ |
| Section Layer | > 1 ifEntry
+-----------------------------+ | ifType: sonet(39)
| Physical Medium Layer | |
----------------------------- -
Figure 1 - Use of ifTable for an Ethernet WIS port
The exact configuration and multiplexing of the layers is maintained in the ifStackTable RFC2863 and in the ifInvStackTable RFC2864.
Use of ifTable for LLC Layer/MAC Layer/Reconciliation
Sublayer/Physical Coding Sublayer
The ifTable MUST be used as specified in RFC3635 and RFC3636 for the LLC Layer/MAC Layer/Reconciliation Sublayer/Physical Coding Sublayer.
Use of ifTable for SONET/SDH Path Layer
The ifTable MUST be used as specified in RFC3592 for the SONET/SDH Path Layer. The value of ifHighSpeed is set to 9585. ifSpeed reports a value of 4294967295.
Use of ifTable for SONET/SDH Medium/Section/Line Layer
The ifTable MUST be used as specified in RFC3592 for the SONET/SDH Medium/Section/Line Layer. The value of ifHighSpeed is set to 9953. ifSpeed reports a value of 4294967295.
SONET/SDH Terminology
The SONET/SDH terminology used in [802.3ae] is mostly the same as in RFC3592, but there are a few differences. In those cases the definitions in [802.3ae] take precedence. The specific differences are as follows.
Unequipped
This defect is not defined by [802.3ae]. An implementation that supports it SHOULD report it by setting the sonetPathUnequipped bit in the appropriate instance of sonetPathCurrentStatus.
Signal Label Mismatch
This defect is called Payload Label Mismatch (PLM) in [802.3ae]. It is reported by setting both the sonetPathSignalLabelMismatch bit in the appropriate instance of sonetPathCurrentStatus (defined in RFC3592) and the etherWisPathPLM bit in the corresponding instance of etherWisPathCurrentStatus (defined below).
Loss of Codegroup Delineation
[802.3ae] defines Loss of Codegroup Delineation (LCD) as occurring when the Physical Coding Sublayer is unable to locate 64B/66B code group boundaries. There is no analogous defect defined in RFC3592. It is reported by setting the etherWisPathLCD bit in the appropriate instance of the object etherWisPathCurrentStatus defined below.
STS-Path Remote Defect Indication
[802.3ae] mandates the use of ERDI-P (Enhanced Remote Defect Indication - Path) defined in [T1.231] to signal remote server defects (triggered by path AIS or path LOP) and remote payload defects (triggered by Payload Label Mismatch or Loss of Codegroup Delineation). RFC3592 defines the one-bit RDI-P (Remote Defect Indication - Path), which signals remote server detects (i.e., path AIS and path LOP) only. An implementation of the MIB module defined in this memo MUST set the sonetPathSTSRDI bit in the appropriate instance of sonetPathCurrentStatus when it receives an ERDI-P server defect indication from the remote end. Both ERDI-P payload defects and ERDI-P server defects are reported in the object etherWisFarEndPathCurrentStatus defined below.
Path Coding Violations
In [802.3ae] the path layer CV count is based on block errors and not BIP-8 errors, i.e., it is incremented only once for each B3 byte that indicates incorrect parity, regardless of the number of bits in error. Note that Section 8.4.5.1 of [T1.231] allows either path BIP-8 errors or path block errors to be used for the path layer error count.
Mapping of IEEE 802.3 Managed Objects
This section contains the mapping between oWIS managed objects defined in [802.3ae] and managed objects defined in this document and in associated MIB modules, i.e., the IF-MIB RFC2863, the SONET-MIB RFC3592, and the MAU-MIB RFC3636.
IEEE 802.3 Managed Object Corresponding SNMP Object
oWIS - pWISBasic package
aWISID IF-MIB - ifIndex aSectionStatus SONET-MIB - sonetSectionCurrentStatus aLineStatus SONET-MIB - sonetLineCurrentStatus aPathStatus etherWisPathCurrentStatus aFarEndPathStatus etherWisFarEndPathCurrentStatus
oWIS - pWISOptional package
aSectionSESThreshold SONET-MIB - sonetSESthresholdSet
aSectionSESs SONET-MIB - sonetSectionCurrentSESs +
sonetSectionIntervalSESs
aSectionESs SONET-MIB - sonetSectionCurrentESs +
sonetSectionIntervalESs
aSectionSEFSs SONET-MIB - sonetSectionCurrentSEFSs +
sonetSectionIntervalSEFSs
aSectionCVs SONET-MIB - sonetSectionCurrentCVs +
sonetSectionIntervalCVs
aJ0ValueTX etherWisSectionCurrentJ0Transmitted
aJ0ValueRX etherWisSectionCurrentJ0Received
aLineSESThreshold SONET-MIB - sonetSESthresholdSet
aLineSESs SONET-MIB - sonetLineCurrentSESs +
sonetLineIntervalSESs
aLineESs SONET-MIB - sonetLineCurrentESs +
sonetLineIntervalESs
aLineCVs SONET-MIB - sonetLineCurrentCVs +
sonetLineIntervalCVs
aFarEndLineSESs SONET-MIB - sonetFarEndLineCurrentSESs +
sonetFarEndLineIntervalSESs
aFarEndLineESs SONET-MIB - sonetFarEndLineCurrentESs +
sonetFarEndLineIntervalESs
aFarEndLineCVs SONET-MIB - sonetFarEndLineCurrentCVs +
sonetFarEndLineIntervalCVs
aPathSESThreshold SONET-MIB - sonetSESthresholdSet
aPathSESs SONET-MIB - sonetPathCurrentSESs +
sonetPathIntervalSESs
aPathESs SONET-MIB - sonetPathCurrentESs +
sonetPathIntervalESs
aPathCVs SONET-MIB - sonetPathCurrentCVs +
sonetPathIntervalCVs
aJ1ValueTX etherWisPathCurrentJ1Transmitted
aJ1ValueRX etherWisPathCurrentJ1Received
aFarEndPathSESs SONET-MIB - sonetFarEndPathCurrentSESs +
sonetFarEndPathIntervalSESs
aFarEndPathESs SONET-MIB - sonetFarEndPathCurrentESs +
sonetFarEndPathIntervalESs
aFarEndPathCVs SONET-MIB - sonetFarEndPathCurrentCVs +
sonetFarEndPathIntervalCVs
It should be noted that the threshold and counter objects imported from the SONET-MIB are not completely equivalent to the corresponding IEEE 802.3 objects. The specific differences are as follows:
IEEE 802.3 Managed Object How Corresponding SNMP Object Differs
aSectionSESThreshold This object is defined in [802.3ae] as an
integer with one instance per interface.
sonetSESthresholdSet is an enumerated value
that has one instance per network element;
it controls the thresholds for all layers
simultaneously and allows only certain
discrete values to be selected.
aSectionSESs This object is defined in [802.3ae] as a
generalized nonresetable counter. The
objects sonetSectionCurrentSESs and
sonetSectionIntervalSESs are 15-minute
interval counters.
aSectionESs This object is defined as a generalized
nonresetable counter in [802.3ae]. The
objects sonetSectionCurrentESs and
sonetSectionIntervalESs are 15-minute
interval counters.
aSectionSEFSs This object is defined as a generalized
nonresetable counter in [802.3ae]. The
objects sonetSectionCurrentSEFSs and
sonetSectionIntervalSEFSs are 15-minute
interval counters.
aSectionCVs This object is defined as a generalized
nonresetable counter in [802.3ae], and it
is not subject to inhibiting. The objects
sonetSectionCurrentCVs and
sonetSectionIntervalCVs are 15-minute
interval counters, and they are inhibited
(not incremented) during one-second
intervals that qualify as severely errored
seconds.
aLineSESThreshold This object is defined in [802.3ae] as an
integer with one instance per interface.
sonetSESthresholdSet is an enumerated value
that has one instance per network element;
it controls the thresholds for all layers
simultaneously and allows only certain
discrete values to be selected.
aLineSESs This object is defined as a generalized
nonresetable counter in [802.3ae], and it
is not subject to inhibiting. The objects
sonetLineCurrentSESs and
sonetLineIntervalSESs are 15-minute
interval counters, and they are inhibited
(not incremented) during one-second
intervals that qualify as unavailable
seconds.
aLineESs This object is defined as a generalized
nonresetable counter in [802.3ae], and it
is not subject to inhibiting. The objects
sonetLineCurrentESs and
sonetLineIntervalESs are 15-minute interval
counters, and they are inhibited (not
incremented) during one-second intervals
that qualify as unavailable seconds.
aLineCVs This object is defined as a generalized
nonresetable counter in [802.3ae], and it
is not subject to inhibiting. The objects
sonetLineCurrentCVs and
sonetLineIntervalCVs are 15-minute interval
counters, and they are inhibited (not
incremented) during one-second intervals
that qualify either as severely errored
seconds or as unavailable seconds.
aFarEndLineSESs This object is defined as a generalized
nonresetable counter in [802.3ae], and it
is not subject to inhibiting. The objects
sonetFarEndLineCurrentSESs and
sonetFarEndLineIntervalSESs are 15-minute
interval counters, and they are inhibited
(not incremented) during one-second
intervals that qualify as unavailable
seconds.
aFarEndLineESs This object is defined as a generalized
nonresetable counter in [802.3ae], and it
is not subject to inhibiting. The objects
sonetFarEndLineCurrentESs and
sonetFarEndLineIntervalESs are 15-minute
interval counters, and they are inhibited
(not incremented) during one-second
intervals that qualify as unavailable
seconds.
aFarEndLineCVs This object is defined as a generalized
nonresetable counter in [802.3ae], and it
is not subject to inhibiting. The objects
sonetFarEndLineCurrentCVs and
sonetFarEndLineIntervalCVs are 15-minute
interval counters, and they are inhibited
(not incremented) during one-second
intervals that qualify either as severely
errored seconds or as unavailable seconds.
aPathSESThreshold This object is defined in [802.3ae] as an
integer with one instance per interface.
sonetSESthresholdSet is an enumerated value
that has one instance per network element;
it controls the thresholds for all layers
simultaneously and allows only certain
discrete values to be selected.
aPathSESs This object is defined as a generalized
nonresetable counter in [802.3ae], and it
is not subject to inhibiting. The objects
sonetPathCurrentSESs and
sonetPathIntervalSESs are 15-minute
interval counters, and they are inhibited
(not incremented) during one-second
intervals that qualify as unavailable
seconds. In addition, [802.3ae] includes
PLM-P and LCD-P defects in the criteria for
declaring path layer severely errored
seconds, while RFC3592 does not.
aPathESs This object is defined as a generalized
nonresetable counter in [802.3ae], and it
is not subject to inhibiting. The objects
sonetPathCurrentESs and
sonetPathIntervalESs are 15-minute interval
counters, and they are inhibited (not
incremented) during one-second intervals
that qualify as unavailable seconds. In
addition, [802.3ae] includes PLM-P and
LCD-P defects in the criteria for declaring
path layer errored seconds, while RFC3592
does not.
aPathCVs This object is defined as a generalized
nonresetable counter in [802.3ae], and it
is not subject to inhibiting. The objects
sonetPathCurrentCVs and
sonetPathIntervalCVs are 15-minute interval
counters, and they are inhibited (not
incremented) during one-second intervals
that qualify either as severely errored
seconds or as unavailable seconds.
aFarEndPathSESs This object is defined as a generalized
nonresetable counter in [802.3ae], and it
is not subject to inhibiting. The objects
sonetFarEndPathCurrentSESs and
sonetFarEndPathIntervalSESs are 15-minute
interval counters, and they are inhibited
(not incremented) during one-second
intervals that qualify as unavailable
seconds. In addition, [802.3ae] includes
far-end PLM-P and LCD-P defects in the
criteria for declaring far-end path layer
severely errored seconds, while RFC3592
does not.
aFarEndPathESs This object is defined as a generalized
nonresetable counter in [802.3ae], and it
is not subject to inhibiting. The objects
sonetFarEndPathCurrentESs and
sonetFarEndPathIntervalESs are 15-minute
interval counters, and they are inhibited
(not incremented) during one-second
intervals that qualify as unavailable
seconds. In addition, [802.3ae] includes
far-end PLM-P and LCD-P defects in the
criteria for declaring far-end path layer
errored seconds, while RFC3592 does not.
aFarEndPathCVs This object is defined as a generalized
nonresetable counter in [802.3ae], and it
is not subject to inhibiting. The objects
sonetFarEndPathCurrentCVs and
sonetFarEndPathIntervalCVs are 15-minute
interval counters, and they are inhibited
(not incremented) during one-second
intervals that qualify either as severely
errored seconds or as unavailable seconds.
Note: despite the semantic differences between the threshold objects and counter objects imported from the SONET-MIB and the corresponding IEEE 802.3 objects, the hardware support mandated by [802.3ae] subclause 50.3.11 suffices for both. See Appendix A for details.
Mapping of SNMP Objects to WIS Station Management Registers
Some of the objects defined in this memo or incorporated by reference from the SONET-MIB RFC3592 or the MAU-MIB RFC3636 require WIS-specific hardware support. [802.3ae] subclause 50.3.11 specifies WIS management interface requirements, including a required subset of the WIS Management Data Input/Output (MDIO) registers defined in [802.3ae] subclause 45.2.2. The table below provides a cross- reference between those managed objects and the WIS MDIO registers from the subset in [802.3ae] subclause 50.3.11 required to support them. Note that the MDIO interface is optional; however, if it is not implemented, then the capabilities of the required register subset must be provided by other means.
SNMP Object WIS MDIO Register(s)
ETHER-WIS - etherWisDeviceTxTestPatternMode 10G WIS control 2 ETHER-WIS - etherWisDeviceRxTestPatternMode 10G WIS control 2 ETHER-WIS - etherWisDeviceRxTestPatternErrors 10G WIS test pattern
error counter
SONET-MIB - sonetMediumType none required SONET-MIB - sonetMediumTimeElapsed none required
SONET-MIB - sonetMediumValidIntervals none required SONET-MIB - sonetMediumLineCoding none required SONET-MIB - sonetMediumLineType none required SONET-MIB - sonetMediumCircuitIdentifier none required SONET-MIB - sonetMediumInvalidIntervals none required SONET-MIB - sonetMediumLoopbackConfig none required SONET-MIB - sonetSESthresholdSet none required
ETHER-WIS - etherWisSectionCurrentJ0Transmitted 10G WIS J0 transmit ETHER-WIS - etherWisSectionCurrentJ0Received 10G WIS J0 receive
SONET-MIB - sonetSectionCurrentStatus 10G WIS status 3 SONET-MIB - sonetSectionCurrentESs \ SONET-MIB - sonetSectionCurrentSESs \ SONET-MIB - sonetSectionCurrentSEFSs | 10G WIS status 3 SONET-MIB - sonetSectionCurrentCVs | + SONET-MIB - sonetSectionIntervalESs | 10G WIS section SONET-MIB - sonetSectionIntervalSESs | BIP error count SONET-MIB - sonetSectionIntervalSEFSs / SONET-MIB - sonetSectionIntervalCVs / SONET-MIB - sonetSectionIntervalValidData none required
SONET-MIB - sonetLineCurrentStatus 10G WIS status 3 SONET-MIB - sonetLineCurrentESs \ SONET-MIB - sonetLineCurrentSESs \ SONET-MIB - sonetLineCurrentCVs | 10G WIS status 3 SONET-MIB - sonetLineCurrentUASs | + SONET-MIB - sonetLineIntervalESs | 10G WIS line SONET-MIB - sonetLineIntervalSESs | BIP errors SONET-MIB - sonetLineIntervalCVs / SONET-MIB - sonetLineIntervalUASs / SONET-MIB - sonetLineIntervalValidData none required
SONET-MIB - sonetFarEndLineCurrentESs \ SONET-MIB - sonetFarEndLineCurrentSESs \ SONET-MIB - sonetFarEndLineCurrentCVs | 10G WIS status 3 SONET-MIB - sonetFarEndLineCurrentUASs | + SONET-MIB - sonetFarEndLineIntervalESs | 10G WIS far end SONET-MIB - sonetFarEndLineIntervalSESs | line BIP errors SONET-MIB - sonetFarEndLineIntervalCVs / SONET-MIB - sonetFarEndLineIntervalUASs / SONET-MIB - sonetFarEndLineIntervalValidData 10G WIS status 3
ETHER-WIS - etherWisPathCurrentStatus 10G WIS status 3 ETHER-WIS - etherWisPathCurrentJ1Transmitted 10G WIS J1 transmit ETHER-WIS - etherWisPathCurrentJ1Received 10G WIS J1 receive SONET-MIB - sonetPathCurrentWidth none required SONET-MIB - sonetPathCurrentStatus 10G WIS status 3
SONET-MIB - sonetPathCurrentESs \ SONET-MIB - sonetPathCurrentSESs \ SONET-MIB - sonetPathCurrentCVs | 10G WIS status 3 SONET-MIB - sonetPathCurrentUASs | + SONET-MIB - sonetPathIntervalESs | 10G WIS SONET-MIB - sonetPathIntervalSESs | path block SONET-MIB - sonetPathIntervalCVs / error count SONET-MIB - sonetPathIntervalUASs / SONET-MIB - sonetPathIntervalValidData none required
ETHER-WIS - etherWisFarEndPathCurrentStatus 10G WIS status 3
SONET-MIB - sonetFarEndPathCurrentESs \ SONET-MIB - sonetFarEndPathCurrentSESs \ SONET-MIB - sonetFarEndPathCurrentCVs | 10G WIS status 3 SONET-MIB - sonetFarEndPathCurrentUASs | + SONET-MIB - sonetFarEndPathIntervalESs | 10G WIS far end SONET-MIB - sonetFarEndPathIntervalSESs | path block SONET-MIB - sonetFarEndPathIntervalCVs / error count SONET-MIB - sonetFarEndPathIntervalUASs / SONET-MIB - sonetFarEndPathIntervalValidData 10G WIS status 3
MAU-MIB - ifMauIfIndex none required MAU-MIB - ifMauIndex none required MAU-MIB - ifMauType 10G WIS control 2 MAU-MIB - ifMauStatus WIS control 1 MAU-MIB - ifMauMediaAvailable \ WIS status 1 + MAU-MIB - ifMauMediaAvailableStateExits / 10G WIS status 3 MAU-MIB - ifMauJabberState none required MAU-MIB - ifMauJabberingStateEnters none required MAU-MIB - ifMauFalseCarriers none required MAU-MIB - ifMauDefaultType 10G WIS control 2 MAU-MIB - ifMauAutoNegSupported none required MAU-MIB - ifMauTypeListBits 10G WIS status 2
Structure of the MIB Module
Four tables are defined in this MIB module.
etherWisDeviceTable
The purpose of this table is to define managed objects to control the WIS test pattern mode. These objects are required to support mandatory and optional WIS test features specified in [802.3ae] subclause 50.3.8.
The etherWisDeviceTable is a sparse augmentation of the sonetMediumTable of the SONET-MIB -- in other words, for each entry in the etherWisDeviceTable there MUST be an entry in the sonetMediumTable and the same ifIndex value MUST be used for both entries.
etherWisSectionCurrentTable
The purpose of this table is to define managed objects for the transmitted and received section trace messages (J0 byte).
The etherWisSectionCurrentTable is a sparse augmentation of the sonetSectionCurrentTable of the SONET-MIB -- in other words, for each entry in the etherWisSectionCurrentTable there MUST be an entry in the sonetSectionCurrentTable and the same ifIndex value MUST be used for both entries.
etherWisPathCurrentTable
The purpose of this table is to define managed objects for the current WIS path layer status and for the transmitted and received path trace messages (J1 byte). The path layer status object is provided because the WIS supports some near-end path status conditions that are not reported in sonetPathCurrentStatus.
The etherWisPathCurrentTable is a sparse augmentation of the sonetPathCurrentTable of the SONET-MIB -- in other words, for each entry in the etherWisPathCurrentTable there MUST be an entry in the sonetPathCurrentTable and the same ifIndex value MUST be used for both entries.
etherWisFarEndPathCurrentTable
The purpose of this table is to define a managed object for the current status of the far end of the path. This object is provided because the WIS supports some far-end path status conditions that are not reported in sonetPathCurrentStatus.
The etherWisFarEndPathCurrentTable is a sparse augmentation of the sonetFarEndPathCurrentTable of the SONET-MIB -- in other words, for each entry in the etherWisFarEndPathCurrentTable there MUST be an entry in the sonetFarEndPathCurrentTable and the same ifIndex value MUST be used for both entries.
Object Definitions
ETHER-WIS DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE,
Gauge32, transmission
FROM SNMPv2-SMI
ifIndex
FROM IF-MIB
MODULE-COMPLIANCE, OBJECT-GROUP
FROM SNMPv2-CONF
sonetMediumStuff2, sonetSectionStuff2,
sonetLineStuff2, sonetFarEndLineStuff2,
sonetPathStuff2, sonetFarEndPathStuff2,
sonetMediumType, sonetMediumLineCoding,
sonetMediumLineType, sonetMediumCircuitIdentifier,
sonetMediumLoopbackConfig, sonetSESthresholdSet,
sonetPathCurrentWidth
FROM SONET-MIB;
etherWisMIB MODULE-IDENTITY
LAST-UPDATED "200309190000Z" -- September 19, 2003
ORGANIZATION "IETF Ethernet Interfaces and Hub MIB
Working Group"
CONTACT-INFO
"WG charter:
http://www.ietf.org/html.charters/hubmib-charter.html
Mailing Lists:
General Discussion: [email protected]
To Subscribe: [email protected]
In Body: subscribe your_email_address
Chair: Dan Romascanu
Postal: Avaya Inc.
Atidim Technology Park, Bldg. 3
Tel Aviv 61131
Israel
Tel: +972 3 645 8414
E-mail: [email protected]
Editor: C. M. Heard
Postal: 600 Rainbow Dr. #141
Mountain View, CA 94041-2542
USA
Tel: +1 650-964-8391
E-mail: [email protected]"
DESCRIPTION
"The objects in this MIB module are used in conjunction
with objects in the SONET-MIB and the MAU-MIB to manage
the Ethernet WAN Interface Sublayer (WIS).
The following reference is used throughout this MIB module:
[IEEE 802.3 Std] refers to:
IEEE Std 802.3, 2000 Edition: 'IEEE Standard for
Information technology - Telecommunications and
information exchange between systems - Local and
metropolitan area networks - Specific requirements -
Part 3: Carrier sense multiple access with collision
detection (CSMA/CD) access method and physical layer
specifications', as amended by IEEE Std 802.3ae-2002,
'IEEE Standard for Carrier Sense Multiple Access with
Collision Detection (CSMA/CD) Access Method and
Physical Layer Specifications - Media Access Control
(MAC) Parameters, Physical Layer and Management
Parameters for 10 Gb/s Operation', 30 August 2002.
Of particular interest are Clause 50, 'WAN Interface
Sublayer (WIS), type 10GBASE-W', Clause 30, '10Mb/s,
100Mb/s, 1000Mb/s, and 10Gb/s MAC Control, and Link
Aggregation Management', and Clause 45, 'Management
Data Input/Output (MDIO) Interface'.
Copyright (C) The Internet Society (2003). This version
of this MIB module is part of RFC 3637; see the RFC
itself for full legal notices."
REVISION "200309190000Z" -- September 19, 2003 DESCRIPTION "Initial version, published as RFC 3637."
::= { transmission 134 }
-- The main sections of the module
etherWisObjects OBJECT IDENTIFIER ::= { etherWisMIB 1 }
etherWisObjectsPath OBJECT IDENTIFIER ::= { etherWisMIB 2 }
etherWisConformance OBJECT IDENTIFIER ::= { etherWisMIB 3 }
-- groups in the Ethernet WIS MIB module
etherWisDevice OBJECT IDENTIFIER ::= { etherWisObjects 1 }
etherWisSection OBJECT IDENTIFIER ::= { etherWisObjects 2 }
etherWisPath OBJECT IDENTIFIER ::= { etherWisObjectsPath 1 }
etherWisFarEndPath OBJECT IDENTIFIER ::= { etherWisObjectsPath 2 }
-- The Device group
-- These objects provide WIS extensions to -- the SONET-MIB Medium Group.
etherWisDeviceTable OBJECT-TYPE
SYNTAX SEQUENCE OF EtherWisDeviceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The table for Ethernet WIS devices"
::= { etherWisDevice 1 }
etherWisDeviceEntry OBJECT-TYPE
SYNTAX EtherWisDeviceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in the Ethernet WIS device table. For each
instance of this object there MUST be a corresponding
instance of sonetMediumEntry."
INDEX { ifIndex }
::= { etherWisDeviceTable 1 }
EtherWisDeviceEntry ::=
SEQUENCE {
etherWisDeviceTxTestPatternMode INTEGER,
etherWisDeviceRxTestPatternMode INTEGER,
etherWisDeviceRxTestPatternErrors Gauge32
}
etherWisDeviceTxTestPatternMode OBJECT-TYPE
SYNTAX INTEGER {
none(1),
squareWave(2),
prbs31(3),
mixedFrequency(4)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This variable controls the transmit test pattern mode.
The value none(1) puts the the WIS transmit path into
the normal operating mode. The value squareWave(2) puts
the WIS transmit path into the square wave test pattern
mode described in [IEEE 802.3 Std.] subclause 50.3.8.1.
The value prbs31(3) puts the WIS transmit path into the
PRBS31 test pattern mode described in [IEEE 802.3 Std.]
subclause 50.3.8.2. The value mixedFrequency(4) puts the
WIS transmit path into the mixed frequency test pattern
mode described in [IEEE 802.3 Std.] subclause 50.3.8.3.
Any attempt to set this object to a value other than
none(1) when the corresponding instance of ifAdminStatus
has the value up(1) MUST be rejected with the error
inconsistentValue, and any attempt to set the corresponding
instance of ifAdminStatus to the value up(1) when an
instance of this object has a value other than none(1)
MUST be rejected with the error inconsistentValue."
REFERENCE
"[IEEE 802.3 Std.], 50.3.8, WIS test pattern generator and
checker, 45.2.2.6, 10G WIS control 2 register (2.7), and
45.2.2.7.2, PRBS31 pattern testing ability (2.8.1)."
::= { etherWisDeviceEntry 1 }
etherWisDeviceRxTestPatternMode OBJECT-TYPE
SYNTAX INTEGER {
none(1),
prbs31(3),
mixedFrequency(4)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This variable controls the receive test pattern mode.
The value none(1) puts the the WIS receive path into the
normal operating mode. The value prbs31(3) puts the WIS
receive path into the PRBS31 test pattern mode described
in [IEEE 802.3 Std.] subclause 50.3.8.2. The value
mixedFrequency(4) puts the WIS receive path into the mixed
frequency test pattern mode described in [IEEE 802.3 Std.]
subclause 50.3.8.3. Any attempt to set this object to a
value other than none(1) when the corresponding instance
of ifAdminStatus has the value up(1) MUST be rejected with
the error inconsistentValue, and any attempt to set the
corresponding instance of ifAdminStatus to the value up(1)
when an instance of this object has a value other than
none(1) MUST be rejected with the error inconsistentValue."
REFERENCE
"[IEEE 802.3 Std.], 50.3.8, WIS test pattern generator and
checker, 45.2.2.6, 10G WIS control 2 register (2.7), and
45.2.2.7.2, PRBS31 pattern testing ability (2.8.1)."
::= { etherWisDeviceEntry 2 }
etherWisDeviceRxTestPatternErrors OBJECT-TYPE
SYNTAX Gauge32 ( 0..65535 )
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object counts the number of errors detected when the
WIS receive path is operating in the PRBS31 test pattern
mode. It is reset to zero when the WIS receive path
initially enters that mode, and it increments each time
the PRBS pattern checker detects an error as described in
[IEEE 802.3 Std.] subclause 50.3.8.2 unless its value is
65535, in which case it remains unchanged. This object is
writeable so that it may be reset upon explicit request
of a command generator application while the WIS receive
path continues to operate in PRBS31 test pattern mode."
REFERENCE
"[IEEE 802.3 Std.], 50.3.8, WIS test pattern generator and
checker, 45.2.2.7.2, PRBS31 pattern testing ability
(2.8.1), and 45.2.2.8, 10G WIS test pattern error counter
register (2.9)."
::= { etherWisDeviceEntry 3 }
-- The Section group
-- These objects provide WIS extensions to -- the SONET-MIB Section Group.
etherWisSectionCurrentTable OBJECT-TYPE
SYNTAX SEQUENCE OF EtherWisSectionCurrentEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The table for the current state of Ethernet WIS sections."
::= { etherWisSection 1 }
etherWisSectionCurrentEntry OBJECT-TYPE
SYNTAX EtherWisSectionCurrentEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in the etherWisSectionCurrentTable. For each
instance of this object there MUST be a corresponding
instance of sonetSectionCurrentEntry."
INDEX { ifIndex }
::= { etherWisSectionCurrentTable 1 }
EtherWisSectionCurrentEntry ::=
SEQUENCE {
etherWisSectionCurrentJ0Transmitted OCTET STRING,
etherWisSectionCurrentJ0Received OCTET STRING
}
etherWisSectionCurrentJ0Transmitted OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (16))
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This is the 16-octet section trace message that
is transmitted in the J0 byte. The value SHOULD
be '89'h followed by fifteen octets of '00'h
(or some cyclic shift thereof) when the section
trace function is not used, and the implementation
SHOULD use that value (or a cyclic shift thereof)
as a default if no other value has been set."
REFERENCE
"[IEEE 802.3 Std.], 30.8.1.1.8, aJ0ValueTX."
::= { etherWisSectionCurrentEntry 1 }
etherWisSectionCurrentJ0Received OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (16))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This is the 16-octet section trace message that
was most recently received in the J0 byte."
REFERENCE
"[IEEE 802.3 Std.], 30.8.1.1.9, aJ0ValueRX."
::= { etherWisSectionCurrentEntry 2 }
-- The Path group
-- These objects provide WIS extensions to -- the SONET-MIB Path Group.
etherWisPathCurrentTable OBJECT-TYPE
SYNTAX SEQUENCE OF EtherWisPathCurrentEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The table for the current state of Ethernet WIS paths."
::= { etherWisPath 1 }
etherWisPathCurrentEntry OBJECT-TYPE
SYNTAX EtherWisPathCurrentEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in the etherWisPathCurrentTable. For each
instance of this object there MUST be a corresponding
instance of sonetPathCurrentEntry."
INDEX { ifIndex }
::= { etherWisPathCurrentTable 1 }
EtherWisPathCurrentEntry ::=
SEQUENCE {
etherWisPathCurrentStatus BITS,
etherWisPathCurrentJ1Transmitted OCTET STRING,
etherWisPathCurrentJ1Received OCTET STRING
}
etherWisPathCurrentStatus OBJECT-TYPE
SYNTAX BITS {
etherWisPathLOP(0),
etherWisPathAIS(1),
etherWisPathPLM(2),
etherWisPathLCD(3)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This variable indicates the current status of the
path payload with a bit map that can indicate multiple
defects at once. The bit positions are assigned as
follows:
etherWisPathLOP(0)
This bit is set to indicate that an
LOP-P (Loss of Pointer - Path) defect
is being experienced. Note: when this
bit is set, sonetPathSTSLOP MUST be set
in the corresponding instance of
sonetPathCurrentStatus.
etherWisPathAIS(1)
This bit is set to indicate that an
AIS-P (Alarm Indication Signal - Path)
defect is being experienced. Note: when
this bit is set, sonetPathSTSAIS MUST be
set in the corresponding instance of
sonetPathCurrentStatus.
etherWisPathPLM(1)
This bit is set to indicate that a
PLM-P (Payload Label Mismatch - Path)
defect is being experienced. Note: when
this bit is set, sonetPathSignalLabelMismatch
MUST be set in the corresponding instance of
sonetPathCurrentStatus.
etherWisPathLCD(3)
This bit is set to indicate that an
LCD-P (Loss of Codegroup Delination - Path)
defect is being experienced. Since this
defect is detected by the PCS and not by
the path layer itself, there is no
corresponding bit in sonetPathCurrentStatus."
REFERENCE
"[IEEE 802.3 Std.], 30.8.1.1.18, aPathStatus."
::= { etherWisPathCurrentEntry 1 }
etherWisPathCurrentJ1Transmitted OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (16))
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This is the 16-octet path trace message that
is transmitted in the J1 byte. The value SHOULD
be '89'h followed by fifteen octets of '00'h
(or some cyclic shift thereof) when the path
trace function is not used, and the implementation
SHOULD use that value (or a cyclic shift thereof)
as a default if no other value has been set."
REFERENCE
"[IEEE 802.3 Std.], 30.8.1.1.23, aJ1ValueTX."
::= { etherWisPathCurrentEntry 2 }
etherWisPathCurrentJ1Received OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (16))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This is the 16-octet path trace message that
was most recently received in the J1 byte."
REFERENCE
"[IEEE 802.3 Std.], 30.8.1.1.24, aJ1ValueRX."
::= { etherWisPathCurrentEntry 3 }
-- The Far End Path group
-- These objects provide WIS extensions to -- the SONET-MIB Far End Path Group.
etherWisFarEndPathCurrentTable OBJECT-TYPE
SYNTAX SEQUENCE OF EtherWisFarEndPathCurrentEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The table for the current far-end state of Ethernet WIS
paths."
::= { etherWisFarEndPath 1 }
etherWisFarEndPathCurrentEntry OBJECT-TYPE
SYNTAX EtherWisFarEndPathCurrentEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in the etherWisFarEndPathCurrentTable. For each
instance of this object there MUST be a corresponding
instance of sonetFarEndPathCurrentEntry."
INDEX { ifIndex }
::= { etherWisFarEndPathCurrentTable 1 }
EtherWisFarEndPathCurrentEntry ::=
SEQUENCE {
etherWisFarEndPathCurrentStatus BITS
}
etherWisFarEndPathCurrentStatus OBJECT-TYPE
SYNTAX BITS {
etherWisFarEndPayloadDefect(0),
etherWisFarEndServerDefect(1)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This variable indicates the current status at the
far end of the path using a bit map that can indicate
multiple defects at once. The bit positions are
assigned as follows:
etherWisFarEndPayloadDefect(0)
A far end payload defect (i.e., far end
PLM-P or LCD-P) is currently being signaled
in G1 bits 5-7.
etherWisFarEndServerDefect(1)
A far end server defect (i.e., far end
LOP-P or AIS-P) is currently being signaled
in G1 bits 5-7. Note: when this bit is set,
sonetPathSTSRDI MUST be set in the corresponding
instance of sonetPathCurrentStatus."
REFERENCE
"[IEEE 802.3 Std.], 30.8.1.1.25, aFarEndPathStatus."
::= { etherWisFarEndPathCurrentEntry 1 }
-- -- Conformance Statements --
etherWisGroups OBJECT IDENTIFIER ::= { etherWisConformance 1 }
etherWisCompliances OBJECT IDENTIFIER ::= { etherWisConformance 2 }
-- Object Groups
etherWisDeviceGroupBasic OBJECT-GROUP
OBJECTS {
etherWisDeviceTxTestPatternMode,
etherWisDeviceRxTestPatternMode
}
STATUS current
DESCRIPTION
"A collection of objects that support test
features required of all WIS devices."
::= { etherWisGroups 1 }
etherWisDeviceGroupExtra OBJECT-GROUP
OBJECTS {
etherWisDeviceRxTestPatternErrors
}
STATUS current
DESCRIPTION
"A collection of objects that support
optional WIS device test features."
::= { etherWisGroups 2 }
etherWisSectionGroup OBJECT-GROUP
OBJECTS {
etherWisSectionCurrentJ0Transmitted,
etherWisSectionCurrentJ0Received
}
STATUS current
DESCRIPTION
"A collection of objects that provide
required information about a WIS section."
::= { etherWisGroups 3 }
etherWisPathGroup OBJECT-GROUP
OBJECTS {
etherWisPathCurrentStatus,
etherWisPathCurrentJ1Transmitted,
etherWisPathCurrentJ1Received
}
STATUS current
DESCRIPTION
"A collection of objects that provide
required information about a WIS path."
::= { etherWisGroups 4 }
etherWisFarEndPathGroup OBJECT-GROUP
OBJECTS {
etherWisFarEndPathCurrentStatus
}
STATUS current
DESCRIPTION
"A collection of objects that provide required
information about the far end of a WIS path."
::= { etherWisGroups 5 }
-- Compliance Statements
etherWisCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for interfaces that include
the Ethernet WIS. Compliance with the following
external compliance statements is prerequisite:
MIB Module Compliance Statement
---------- --------------------
IF-MIB ifCompliance3
IF-INVERTED-STACK-MIB ifInvCompliance
EtherLike-MIB dot3Compliance2
MAU-MIB mauModIfCompl3"
MODULE -- this module
MANDATORY-GROUPS {
etherWisDeviceGroupBasic,
etherWisSectionGroup,
etherWisPathGroup,
etherWisFarEndPathGroup
}
OBJECT etherWisDeviceTxTestPatternMode
SYNTAX INTEGER {
none(1),
squareWave(2),
mixedFrequency(4)
}
DESCRIPTION
"Support for values other than none(1),
squareWave(2), and mixedFrequency(4)
is not required."
OBJECT etherWisDeviceRxTestPatternMode
SYNTAX INTEGER {
none(1),
mixedFrequency(4)
}
DESCRIPTION
"Support for values other than none(1)
and mixedFrequency(4) is not required."
GROUP etherWisDeviceGroupExtra
DESCRIPTION
"Implementation of this group, along with support for
the value prbs31(3) for etherWisDeviceTxTestPatternMode
and etherWisDeviceRxTestPatternMode, is necessary if the
optional PRBS31 test pattern mode is to be supported."
OBJECT etherWisDeviceRxTestPatternErrors
WRITE-SYNTAX Gauge32 ( 0 )
DESCRIPTION
"An implementation is not required to
allow values other than zero to be
written to this object."
MODULE SONET-MIB
MANDATORY-GROUPS {
sonetMediumStuff2,
sonetSectionStuff2,
sonetLineStuff2,
sonetFarEndLineStuff2,
sonetPathStuff2,
sonetFarEndPathStuff2
}
OBJECT sonetMediumType
SYNTAX INTEGER {
sonet(1)
}
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required, nor is support
for any value other than sonet(1)."
OBJECT sonetMediumLineCoding
SYNTAX INTEGER {
sonetMediumNRZ(4)
}
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required, nor is support
for any value other than sonetMediumNRZ(4)."
OBJECT sonetMediumLineType
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT sonetMediumCircuitIdentifier
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT sonetMediumLoopbackConfig
SYNTAX BITS {
sonetNoLoop(0),
sonetFacilityLoop(1)
}
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required, nor is support for values
other than sonetNoLoop(0) and sonetFacilityLoop(1)."
OBJECT sonetSESthresholdSet
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required, and only one
of the enumerated values need be supported."
OBJECT sonetPathCurrentWidth
SYNTAX INTEGER {
sts192cSTM64(6)
}
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required, nor is support
for any value other than sts192cSTM64(6)."
::= { etherWisCompliances 1 }
END
Intellectual Property Statement
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 implementors 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 IETF Hub MIB and AToM MIB Working Groups. It builds upon the work of the IEEE P802.3ae 10 Gigabit Ethernet Task Force.
Security Considerations
There are five managed objects defined in this MIB module that have a MAX-ACCESS clause of read-write: etherWisDeviceTxTestPatternMode, etherWisDeviceRxTestPatternMode, etherWisDeviceRxTestPatternErrors, etherWisSectionCurrentJ0Transmitted, and etherWisPathCurrentJ1Transmitted. Writing to these objects can have the following potentially disruptive effects on network operation:
o changing the transmit or receive test pattern mode or modifying
the accumulated error count from a PRBS31 pattern test on an administratively disabled 10GBASE-W interface, which can interfere with an in-progress pattern test;
o modifying the transmitted section trace and/or path trace
message on an operational 10GBASE-W interface, which can cause connectivity alarms to be raised at the remote of the link.
The user of this MIB module must therefore be aware that support for SET operations in a non-secure environment without proper protection can have a negative effect on network operations.
The readable objects in this MIB module (i.e., those with MAX-ACCESS other than not-accessible) may be considered sensitive in some environments since, collectively, they provide information about the performance of network interfaces and can reveal some aspects of their configuration. In such environments it is important to control even GET and NOTIFY access to these objects and possibly even to encrypt their values when sending them over the network via SNMP.
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.
References
Normative References
RFC2119 Bradner, S., "Key words for use in RFCs to Indicate
Requirements Levels", BCP 14, RFC 2119, March 1997.
RFC2578 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.
RFC2579 McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
Rose, M. and S. Waldbusser, "Textual Conventions for
SMIv2", STD 58, RFC 2579, April 1999.
RFC2580 McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
Rose, M. and S. Waldbusser, "Conformance Statements for
SMIv2", STD 58, RFC 2580, April 1999.
RFC2863 McCloghrie, K. and F. Kastenholz, "The Interfaces Group
MIB", RFC 2863, June 2000.
RFC2864 McCloghrie, K. and G. Hanson, "The Inverted Stack Table
Extension to the Interfaces Group MIB", RFC 2864, June 2000.
RFC3592 Tesink, K., "Definitions of Managed Objects for the
Synchronous Optical Network/Synchronous Digital Hierarchy
(SONET/SDH) Interface Type", RFC 3592, September 2003.
[T1.231] American National Standard for Telecommunications -
Digital Hierarchy - Layer 1 In-Service Digital
Transmission Performance Monitoring, ANSI T1.231-1997,
September 1997.
RFC3635 Flick, J., "Definitions of Managed Objects for the
Ethernet-like Interface Types", RFC 3635, September 2003.
RFC3636 Flick, J., "Definitions of Managed Objects for IEEE 802.3
Medium Attachment Units (MAUs)", RFC 3636, September 2003.
[802.3ae] Institute of Electrical and Electronic Engineers, IEEE
Std 802.3ae-2002, "IEEE Standard for Carrier Sense
Multiple Access with Collision Detection (CSMA/CD) Access
Method and Physical Layer Specifications - Media Access
Control (MAC) Parameters, Physical Layer and Management
Parameters for 10 Gb/s Operation", August 2002.
Informative References
RFC3410 Case, J., Mundy, R., Partain, D. and B. Stewart,
"Introduction and Applicability Statements for Internet-
Standard Management Framework", RFC 3410, December 2002.
Appendix A: Collection of Performance Data Using WIS MDIO Registers
The purpose of this appendix is to illustrate how the WIS MDIO registers specified in [802.3ae] subclause 45.2.2 (and more specifically the subset required by [802.3ae] subclause 50.3.11) can be used to collect performance data either according to the conventions adopted by this document or according to the conventions specified in [802.3ae] Clause 30.
For an agent implementing the SNMP managed objects required by this document the first step in collecting WIS performance data would be to poll the 10G WIS status 3 register and the various error count registers (10G WIS section BIP error count, 10G WIS line BIP errors, 10G WIS far end line BIP errors, 10G WIS path block error count, and 10G WIS far end path block error count) once per second. The 10G WIS status 3 register bits are all latched until read and so would indicate whether a given defect occurred any time during the previous second. The error count registers roll over modulo 2^16 or 2^32, and so to find the number of errors within the previous second the agent would need to subtract (modulo 2^16 or 2^32) the current reading from the reading taken one second ago. Armed with that information, the agent could determine for any layer whether the one second interval was an errored second, a severely errored second (that requires comparison with a threshold unless a defect is present), or a severely errored frame second. Determining whether a given second is or is not part of unavailable time requires additional logic; the most straightforward and accurate method is the delay-line approach outlined in Appendix A of RFC3592. With that information available the agent would be able to determine by how much each current count should be incremented (including effects of inhibiting). Implementations that conform to [T1.231] would end each 15-minute interval on time-of-day clock 1/4 hour boundaries; if the delay-line approach is used then a time-of-day timestamp would accompany the one-second statistics. At the end of each interval the current registers would be pushed onto the history stack and then would be cleared. The xyxIntervalValidData flags would be set to False(2) if the number of samples was not between 890 and 910 or, in the case of far-end counts, if a near-end defect occurred during the just-completed interval (see [T1.231] Section 9.1.2.2 for details).
An agent implementing the [802.3ae] Clause 30 oWIS objects could also start by polling the 10G WIS status 3 register and the various error count registers to find the defects and error counts for the previous second, and it could determine the number of errors and whether the second was an errored second, a severely errored second, or a severely errored frame second in the same manner as above. The rest of the process would simply be to increment the generalized non- resetable counters without consideration of any inhibiting rules.
Contributors
Mike Ayers 1204 Knox Ave. San Jose, CA 95122 USA
Phone: +1 408 857 6810 EMail: [email protected]
John Flick Hewlett-Packard Company 8000 Foothills Blvd. M/S 5557 Roseville, CA 95747-5557 USA
Phone: +1 916 785 4018 Fax: +1 916 785 1199 EMail: [email protected]
Kam Lam Lucent Technologies 101 Crawfords Corner Road, Room 4C-616A Holmdel, NJ 07733 USA
Phone: +1 732 949 8338 EMail: [email protected]
Kerry McDonald Institute for Applied Supercomputing California State University San Bernardino
EMail: [email protected]
[email protected]
K. C. Norseth L-3 Communications 640 N. 2200 West. Salt Lake City, Utah 84116-0850 USA
Phone: +1 801 594 2809 EMail: [email protected]
[email protected]
Kaj Tesink Telcordia Technologies 331 Newman Springs Road P.O. Box 7020 Red Bank, NJ 07701-7020 USA
Phone: +1 732 758 5254 EMail: [email protected]
Editor's Address
C. M. Heard 600 Rainbow Dr. #141 Mountain View, CA 94041-2542 USA
Phone: +1 650 964 8391 EMail: [email protected]
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Acknowledgement
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