LLDP-EXT-DOT1-PE-MIB

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Organization: IEEE 802.1 Working Group

Last Updated: 2012-01-23

Category: Protocol: LLDP, Standard: IEEE 802

Description: IEEE 802.1 LLDP extension MIB for Provider Edge bridging, defining TLV objects for IEEE 802.1ad provider bridge environments.

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What Is LLDP-EXT-DOT1-PE-MIB?

LLDP-EXT-DOT1-PE-MIB is a vendor-neutral IEEE standards MIB, part of the LLDP (Link Layer Discovery Protocol) 802.1 extension family, that carries IEEE 802.1BR Port Extension TLV information -- covering cascade port priority, Port Extender (PE) address, and Controlling Bridge/Port Extender (CSP) addressing between local and remote LLDP peers. It exposes local, remote, and configuration tables describing port-extension topology rather than performance counters, so its category is topology/configuration discovery. Its monitoring value is confirming correct discovery and neighbor-relationship health between a controlling bridge and its port extenders -- effectively a link/topology-status check that flags cabling or configuration mismatches in 802.1BR fabrics, rather than CPU/temperature-style hardware health. It explicitly depends on and extends the base LLDP-MIB (IEEE 802.1AB) since it is rooted under the LLDP extension arc and reuses LLDP's local/remote port model. It is deployed on data center switches and port extenders that implement IEEE 802.1BR distributed/cascaded switching architectures. Engineers implementing or auditing this functionality typically reference the LLDP-EXT-DOT1-PE-MIB RFC/standard documentation for the authoritative specification.

IPNetwork Monitor allows you to monitor SNMP objects defined in LLDP-EXT-DOT1-PE-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

vendor-neutral, standards-based MIB, not tied to a specific manufacturer
IEEE 802.1BR-capable switch or port extender

Monitoring Examples

An operator would compare lldpXdot1PeLocPortExtensionTable entries (lldpXdot1PeLocPECascadePortPriority, lldpXdot1PeLocPEAddress, lldpXdot1PeLocPECSPAddress) against the corresponding lldpXdot1PeRemPortExtensionTable entries (lldpXdot1PeRemPECascadePortPriority, lldpXdot1PeRemPEAddress) discovered from a neighbor. A mismatch between the locally configured cascade port priority and what the remote peer reports, or a remote table that unexpectedly stops updating, would indicate a misconfigured or disconnected port-extender link in the 802.1BR topology.

What Can Be Monitored

local/remote cascade port priority
port extender (PE) address
controlling bridge/CSP address
port extension TLV transmit enable state

Imported Objects

From IF-MIB

ifGeneralInformationGroup

OBJECT-GROUP

From LLDP-EXT-DOT1-EVB-EXTENSIONS-MIB

lldpXdot1StandAloneExtensions

OBJECT-IDENTITY

From LLDP-V2-MIB

lldpV2Extensions	OBJECT-IDENTITY
lldpV2LocPortIfIndex	OBJECT-TYPE
lldpV2PortConfigEntry	OBJECT-TYPE
lldpV2RemIndex	OBJECT-TYPE
lldpV2RemLocalDestMACAddress	OBJECT-TYPE
lldpV2RemLocalIfIndex	OBJECT-TYPE
lldpV2RemTimeMark	OBJECT-TYPE

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

MacAddress
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
lldpXDot1PEExtensions	1.3.111.2.802.1.1.13.1.5.32962.7.2			The LLDP Management Information Base extension module for IEEE 802.1 organizationally defined discovery information to support Port Extension. This MIB module is rooted under the lldpXdot1StandAloneExtensions OID arc, in order to allow it to be defined independently of other 802.1 LLDP extension MIBs. Unless otherwise indicated, the references in this MIB module are to IEEE Std 802.1BR-2012. Copyright (C) IEEE. This version of this MIB module is published as Annex B.5 of IEEE Std 802.1BR-2012; see the standard itself for full legal notices.
lldpXdot1PeMIB	1.3.111.2.802.1.1.13.1.5.32962.7.2.1
lldpXdot1PeObjects	1.3.111.2.802.1.1.13.1.5.32962.7.2.1.1
lldpXdot1PeConfig	1.3.111.2.802.1.1.13.1.5.32962.7.2.1.1.1
lldpXdot1PeConfigPortExtensionTable	1.3.111.2.802.1.1.13.1.5.32962.7.2.1.1.1.1		not-accessible	A table that controls selection of LLDP Port Extension TLVs to be transmitted on individual ports.
lldpXdot1PeConfigPortExtensionEntry	1.3.111.2.802.1.1.13.1.5.32962.7.2.1.1.1.1.1		not-accessible	LLDP configuration information that specifies Port Exension configuration. This configuration object augments the lldpV2Xdot1LocPortExtensionEntry, therefore it is only present along with the associated lldpV2Xdot1LocPortExtensionEntry entry. Each active lldpV2Xdot1ConfigPortExensionEntry must be restored from non-volatile storage (along with the corresponding lldpV2Xdot1LocPortExtensionEntry) after a re-initialization of the management system.
T/F lldpXdot1PeConfigPortExtensionTxEnable	1.3.111.2.802.1.1.13.1.5.32962.7.2.1.1.1.1.1.1	TruthValue	read-write	The lldpXdot1PeConfigPortExtensionTxEnable, which is defined as a truth value and configured by the network management, determines whether the IEEE 802.1 organizationally defined Port Extension TLV transmission is allowed on a given LLDP transmission capable port. The value of this object must be restored from non-volatile storage after a re-initialization of the management system.
lldpXdot1PeLocalData	1.3.111.2.802.1.1.13.1.5.32962.7.2.1.1.2
lldpXdot1PeLocPortExtensionTable	1.3.111.2.802.1.1.13.1.5.32962.7.2.1.1.2.1		not-accessible	This table contains one row per port of Port Extension information (as a part of the LLDP 802.1 organizational extension) on the local system known to this agent.
lldpXdot1PeLocPortExtensionEntry	1.3.111.2.802.1.1.13.1.5.32962.7.2.1.1.2.1.1		not-accessible	Port Extension information about a particular Port Extender Port.
U32 lldpXdot1PeLocPECascadePortPriority	1.3.111.2.802.1.1.13.1.5.32962.7.2.1.1.2.1.1.1	Unsigned32	read-write	Contains the cascade port priority.
MAC lldpXdot1PeLocPEAddress	1.3.111.2.802.1.1.13.1.5.32962.7.2.1.1.2.1.1.2	MacAddress	read-only	This object contains the MAC address that uniquely identifies the Port Extender.
MAC lldpXdot1PeLocPECSPAddress	1.3.111.2.802.1.1.13.1.5.32962.7.2.1.1.2.1.1.3	MacAddress	read-only	This object contains the MAC address to be used for the Port Extension control and status protocol.
lldpXdot1PeRemoteData	1.3.111.2.802.1.1.13.1.5.32962.7.2.1.1.3
lldpXdot1PeRemPortExtensionTable	1.3.111.2.802.1.1.13.1.5.32962.7.2.1.1.3.1		not-accessible	This table contains Port Extension information (as a part of the LLDP IEEE 802.1 organizational extension) of the remote system.
lldpXdot1PeRemPortExtensionEntry	1.3.111.2.802.1.1.13.1.5.32962.7.2.1.1.3.1.1		not-accessible	Port Extension information about remote systems port component.
U32 lldpXdot1PeRemPECascadePortPriority	1.3.111.2.802.1.1.13.1.5.32962.7.2.1.1.3.1.1.1	Unsigned32	read-only	The cascade port priority.
MAC lldpXdot1PeRemPEAddress	1.3.111.2.802.1.1.13.1.5.32962.7.2.1.1.3.1.1.2	MacAddress	read-only	This object contains the MAC address that uniquely identifies the Port Extender.
MAC lldpXdot1PeRemPECSPAddress	1.3.111.2.802.1.1.13.1.5.32962.7.2.1.1.3.1.1.3	MacAddress	read-only	This object contains the MAC address to be used for the Port Extension Control and Status Protocol.
lldpXdot1PeConformance	1.3.111.2.802.1.1.13.1.5.32962.7.2.2
lldpXdot1PeCompliances	1.3.111.2.802.1.1.13.1.5.32962.7.2.2.1
lldpXdot1PeCompliance	1.3.111.2.802.1.1.13.1.5.32962.7.2.2.1.1			A compliance statement for entities that implement the IEEE 802.1 organizationally defined Port Extension LLDP extension MIB. This group is mandatory for agents that implement the Port Extension peSet TLV set.
lldpXdot1PeGroups	1.3.111.2.802.1.1.13.1.5.32962.7.2.2.2
lldpXdot1PeGroup	1.3.111.2.802.1.1.13.1.5.32962.7.2.2.2.1			The collection of objects that support the Port Extension peSet TLV set.

RFC description

LLDP extension for IEEE 802.1 Port Extension (802.1BR) discovery information and peer attributes.

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Download LLDP-EXT-DOT1-PE-MIB

What Is LLDP-EXT-DOT1-PE-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description