WWP-LEOS-LDP-MIB

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Organization: Ciena, Inc

Last Updated: 2001-04-03

Category: Ciena LEOS Carrier Ethernet

Description: Manages Ciena LEOS MPLS Label Distribution Protocol session state, label bindings, and peer adjacency.

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What Is WWP-LEOS-LDP-MIB?

WWP-LEOS-LDP-MIB is a World Wide Packets (WWP, acquired by Ciena) LEOS-platform MIB managing MPLS Label Distribution Protocol (LDP) sessions, hello adjacencies, and per-interface LDP configuration on Ciena/WWP LEOS Ethernet transport switches. It exposes session-level state, adjacency-level state (hello adjacency hold times, peer hold time), and interface-level LDP enablement, i.e., control-plane protocol status rather than raw traffic counters. Its monitoring value is chiefly software/protocol status: tracking whether LDP sessions and hello adjacencies to MPLS peers are established and healthy, and whether configured vs. peer hold-timers match, which reveals flapping or misconfigured LDP neighbors. The module description notes it extends the standard BRIDGE-MIB framework for WWP products, so it has a documented dependency on that IETF MIB. It is deployed in Ciena/WWP LEOS-based MPLS/Ethernet transport network switches used by carriers for label-switched service delivery. Engineers can download the WWP-LEOS-LDP-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in WWP-LEOS-LDP-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

Ciena/WWP LEOS MPLS/Ethernet transport switch

Monitoring Examples

An operator would poll wwpLeosLdpSessionTable/wwpLeosLdpSessionEntry to confirm an LDP session to a given peer router is in the operational state, and check wwpLeosLdpHelloAdjacencyTable/wwpLeosLdpHelloAdjacencyEntry rows keyed by wwpLeosLdpHelloAdjacencyIndex for adjacency status. Comparing wwpLeosLdpHelloAdjacencyConfiguredHoldTime against wwpLeosLdpHelloAdjacencyPeerHoldTime would reveal a hold-time mismatch that could cause premature adjacency teardown. Polling wwpLeosLdpIfTable/wwpLeosLdpIfEntry would confirm which interfaces have LDP enabled, useful when a newly provisioned MPLS link fails to establish a label-switched path.

What Can Be Monitored

LDP session state per peer
hello adjacency state
configured vs peer hold time
per-interface LDP enablement

Imported Objects

From DIFFSERV-MIB

IndexInteger

From MPLS-TC-STD-MIB

MplsLdpIdentifier

From SNMPv2-SMI

Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE
TimeTicks
Unsigned32

From SNMPv2-TC

DisplayString
MacAddress
RowStatus
TEXTUAL-CONVENTION
TruthValue

From WWP-SMI

wwpModulesLeos

OBJECT-IDENTITY

OIDs

OID symbolic	OID numeric	Type	Access	Description
wwpLeosLdpMIB	1.3.6.1.4.1.6141.2.60.32			This MIB module is for the Extension of the BRIDGE MIB for WWP Products
wwpLeosLdpMIBObjects	1.3.6.1.4.1.6141.2.60.32.1
wwpLeosLdpObjects	1.3.6.1.4.1.6141.2.60.32.1.1
INT wwpLeosLdpAdminStatus	1.3.6.1.4.1.6141.2.60.32.1.1.1	INTEGER	read-write	Globally enable/disable LDP
INT wwpLeosLdpOperStatus	1.3.6.1.4.1.6141.2.60.32.1.1.2	INTEGER	read-only	Current operational state of LDP
U32 wwpLeosLdpHelloHoldTime	1.3.6.1.4.1.6141.2.60.32.1.1.3	Unsigned32	read-write	The 16-bit integer value which is the proposed global hello hold timer (in seconds) for LDP. An LSR maintains a record of Hellos received from potential peers. This object represents the Hold Time in the Common Hello Parameters TLV of the Hello Message. A value of 65535 means infinite (i.e., wait forever). All other values represent the amount of time in seconds to wait for a Hello Message. Setting the hold time to a value smaller than 15 is not recommended, although not forbidden according to RFC3036.
U32 wwpLeosLdpKeepAliveHoldTime	1.3.6.1.4.1.6141.2.60.32.1.1.4	Unsigned32	read-write	The 16-bit integer value which is the proposed global keep alive hold timer for LDP.
wwpLeosLdp	1.3.6.1.4.1.6141.2.60.32.1.2
wwpLeosLdpSessionTable	1.3.6.1.4.1.6141.2.60.32.1.2.1		not-accessible	A table of Sessions between the LDP Entities and LDP Peers. Each row in this table represents a single session.
wwpLeosLdpSessionEntry	1.3.6.1.4.1.6141.2.60.32.1.2.1.1		not-accessible	An entry in this table represents information on a single session between an LDP Entity and LDP Peer. The information contained in a row is read-only. Please note: the Path Vector Limit for the Session is the value which is configured in the corresponding mplsLdpEntityEntry. The Peer's Path Vector Limit is in the mplsLdpPeerPathVectorLimit object in the mplsLdpPeerTable. Values which may differ from those configured are noted in the objects of this table, the mplsLdpAtmSessionTable and the mplsLdpFrameRelaySessionTable. A value will differ if it was negotiated between the Entity and the Peer. Values may or may not be negotiated. For example, if the values are the same then no negotiation takes place. If they are negotiated, then they may differ.
OID wwpLeosLdpEntityLdpId	1.3.6.1.4.1.6141.2.60.32.1.2.1.1.1	MplsLdpIdentifier	not-accessible	The LDP identifier. The first four octets encode an IP address assigned to the LSR, and the last two octets identify a specific label space within the LSR.
NUM wwpLeosLdpEntityIndex	1.3.6.1.4.1.6141.2.60.32.1.2.1.1.2	IndexInteger	not-accessible	This index is used as a secondary index to uniquely identify this row. Before creating a row in this table, the 'mplsLdpEntityIndexNext' object should be retrieved. That value should be used for the value of this index when creating a row in this table. NOTE: if a value of zero (0) is retrieved, that indicates that no rows can be created in this table at this time. A secondary index (this object) is meaningful to some but not all, LDP implementations. For example an LDP implementation which uses PPP would use this index to differentiate PPP sub-links. Another way to use this index is to give this the value of ifIndex. However, this is dependant on the implementation. This field is deprecated in the following tables provided by DC-CR-LDP Session Controller. - mplsLdpEntityTable. - mplsLdpPeerTable. In these tables the value of the Entity Index will always be filled in to be 1.
OID wwpLeosLdpPeerLdpId	1.3.6.1.4.1.6141.2.60.32.1.2.1.1.3	MplsLdpIdentifier	not-accessible	The LDP identifier of this LDP Peer.
U32 wwpLeosLdpSessionConfiguredHoldTime	1.3.6.1.4.1.6141.2.60.32.1.2.1.1.4	Unsigned32	read-only	The locally configured keepalive hold time for this session, in seconds. Note that the value of this field reflects configuration at the time of session initialization; this may differ from the configuration that would apply to a new session, if configuration has changed since this session was initialized.
U32 wwpLeosLdpSessionPeerHoldTime	1.3.6.1.4.1.6141.2.60.32.1.2.1.1.5	Unsigned32	read-only	The peer's advertised keepalive hold time for this session in seconds. Note that the value of this field reflects the peer's configuration at the time of session initialization; this may differ from the configuration that would apply to a new session, if the peer's configuration has changed since this session was initialized.
U32 wwpLeosLdpSessionHoldTimeInUse	1.3.6.1.4.1.6141.2.60.32.1.2.1.1.6	Unsigned32	read-only	The keepalive hold time that is currently in use for this session, in seconds.
wwpLeosLdpHelloAdjacencyTable	1.3.6.1.4.1.6141.2.60.32.1.2.2		not-accessible	A table of Hello Adjacencies for Sessions.
wwpLeosLdpHelloAdjacencyEntry	1.3.6.1.4.1.6141.2.60.32.1.2.2.1		not-accessible	Each row represents a single LDP Hello Adjacency. An LDP Session can have one or more Hello Adjacencies.
U32 wwpLeosLdpHelloAdjacencyIndex	1.3.6.1.4.1.6141.2.60.32.1.2.2.1.1	Unsigned32	not-accessible	An identifier for this specific adjacency.
U32 wwpLeosLdpHelloAdjacencyConfiguredHoldTime	1.3.6.1.4.1.6141.2.60.32.1.2.2.1.2	Unsigned32	read-only	The locally configured hello hold time for this adjacency, in seconds.
U32 wwpLeosLdpHelloAdjacencyPeerHoldTime	1.3.6.1.4.1.6141.2.60.32.1.2.2.1.3	Unsigned32	read-only	The peer's advertised hello hold time for this adjacency, in seconds.
wwpLeosLdpIfTable	1.3.6.1.4.1.6141.2.60.32.1.2.3		not-accessible	A table of interfaces that LDP can be enabled on.
wwpLeosLdpIfEntry	1.3.6.1.4.1.6141.2.60.32.1.2.3.1		not-accessible	WWP Descr.
STR wwpLeosLdpIfName	1.3.6.1.4.1.6141.2.60.32.1.2.3.1.1	DisplayString	read-only	Interface Name
INT wwpLeosLdpIfIndex	1.3.6.1.4.1.6141.2.60.32.1.2.3.1.2	INTEGER	not-accessible	Interface Index
IP wwpLeosLdpIfIpAddr	1.3.6.1.4.1.6141.2.60.32.1.2.3.1.3	IpAddress	read-only	Interface IP Address
INT wwpLeosLdpIfAdminStatus	1.3.6.1.4.1.6141.2.60.32.1.2.3.1.4	INTEGER	read-write	Desired LDP status on this Interface
INT wwpLeosLdpIfOperStatus	1.3.6.1.4.1.6141.2.60.32.1.2.3.1.5	INTEGER	read-only	LDP Operational Status on this Interface

RFC description

LDP (Label Distribution Protocol) management extensions for Ciena LEOS platforms enabling label switching.

Start monitoring Ciena/WWP LEOS MPLS/Ethernet transport switch (LDP session/hello-adjacency status) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download WWP-LEOS-LDP-MIB

What Is WWP-LEOS-LDP-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description