CISCO-CABLE-L2VPN-MIB

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Category: DOCSIS and Cable, VPN and Security

Description: Manages Layer 2 VPN services over DOCSIS cable networks on Cisco CMTS platforms.

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What Is CISCO-CABLE-L2VPN-MIB?

CISCO-CABLE-L2VPN-MIB is a Cisco enterprise MIB for Layer 2 VPN (L2VPN) services carried over DOCSIS cable networks, used on Cisco CMTS platforms. It exposes mapping tables that associate cable modem MAC addresses and VPN identifiers with internal L2VPN indices, as well as pseudowire configuration data including peer IP address and VCID for pseudowire-based L2VPN transport. Its monitoring value is largely in verifying that L2VPN software mappings and pseudowire sessions are correctly established, which reflects the operational (software) status of the VPN service rather than physical hardware sensors. It works alongside DOCSIS cable modem and CMTS interface MIBs and pseudowire/MPLS standards concepts to represent L2VPN state on the CMTS. It is deployed in cable operator networks offering business Ethernet/L2VPN services to enterprise subscribers over a shared DOCSIS access network. Engineers can download the CISCO-CABLE-L2VPN-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-CABLE-L2VPN-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

Cisco uBR-series Cable Modem Termination Systems (L2VPN)

Monitoring Examples

An operator would look up ccl2vpnMacVpnIdL2vpnIndexTable, keyed by ccl2vpnMac and ccl2vpnVpnId, to confirm a specific cable modem is correctly mapped to its assigned L2VPN index. Checking ccl2vpnPWL2vpnIndexTable's ccl2vpnPeerIPAddress and ccl2vpnVCID against the expected pseudowire peer configuration reveals a misconfigured or down pseudowire endpoint. A missing mapping in either table for an active subscriber modem indicates the VPN service was never fully provisioned.

What Can Be Monitored

cable modem to L2VPN mapping
pseudowire peer IP configuration
pseudowire VCID assignment
L2VPN index allocation

Imported Objects

From CISCO-IETF-PW-TC-MIB

CpwVcIDType
CpwVcType

From CISCO-SMI

ciscoMgmt

OBJECT-IDENTITY

From INET-ADDRESS-MIB

InetAddress
InetAddressType

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

Gauge

From SNMPv2-TC-v1

MacAddress

OIDs

OID symbolic	OID numeric	Type	Access	Description
ciscoCableL2vpnMIB	1.3.6.1.4.1.9.9.700
ciscoCableL2vpnMIBNotifs	1.3.6.1.4.1.9.9.700.0
ciscoCableL2vpnMIBObjects	1.3.6.1.4.1.9.9.700.1
ccl2vpnMacVpnIdL2vpnIndexTable	1.3.6.1.4.1.9.9.700.1.1		not-accessible	Every L2VPN provisioned Cable Modem can be a part of multiple VPNs and the CMTS assigns a L2vpnIndex for each {Cable Modem MAC address, VPN-id} pair. This table maps {Cable Modem MAC address, VPN-id} to the L2vpnIndex.
ccl2vpnMacVpnIdL2vpnIndexEntry	1.3.6.1.4.1.9.9.700.1.1.1		not-accessible	Each row contains the Cable Modem MAC address and VPN identifier and the corresponding L2vpnIndex. Entry in this table is populated for each one of the pseudo-wire provisioned on the CMTS.
MAC ccl2vpnMac	1.3.6.1.4.1.9.9.700.1.1.1.1	MacAddress	not-accessible	This object identifies the Cable Modem MAC address.
OCT ccl2vpnVpnId	1.3.6.1.4.1.9.9.700.1.1.1.2	OCTET STRING	not-accessible	This object identifies the VPN provisioned for L2VPN Cable Modem.
CIS ccl2vpnMacVpnIdToL2vpnIndex	1.3.6.1.4.1.9.9.700.1.1.1.3	CiscoCableL2vpnIndex	read-only	This object identifies the L2vpnIndex assigned for this Cable Modem MAC Address/VPN pair by the CMTS.
ccl2vpnPWL2vpnIndexTable	1.3.6.1.4.1.9.9.700.1.2		not-accessible	Every L2VPN Cable Modem can be provisioned with multiple VPNs and for each {Cable Modem MAC address, VPN-id} pair, there is a IP/MPLS pseudo-wire established. The pseudo-wire is specified by {peer IP address, VCID}. This table maps {peer IP address, VCID} to the L2vpnIndex.
ccl2vpnPWL2vpnIndexEntry	1.3.6.1.4.1.9.9.700.1.2.1		not-accessible	Each row contains the pseudo-wire peer IP address and Virtual Circuit Identifier (VCID) and the corresponding L2vpnIndex. Entry in this table is populated for each one of the pseudo-wire provisioned on the CMTS.
CPW ccl2vpnPseudoWireType	1.3.6.1.4.1.9.9.700.1.2.1.1	CpwVcType	not-accessible	This object identifies the pseudo-wire type.
IPt ccl2vpnPeerIPAddressType	1.3.6.1.4.1.9.9.700.1.2.1.2	InetAddressType	not-accessible	This object identifies the pseudo-wire peer IP address type provisioned for L2VPN.
IP ccl2vpnPeerIPAddress	1.3.6.1.4.1.9.9.700.1.2.1.3	InetAddress	not-accessible	This object identifies the pseudo-wire peer IP address provisioned for L2VPN. The type of this address is determined by the value of ccl2vpnPeerIPAddressType object.
CPW ccl2vpnVCID	1.3.6.1.4.1.9.9.700.1.2.1.4	CpwVcIDType	not-accessible	This object identifies the Virtual Circuit Identifier (VCID) of the pseudo-wire.
CIS ccl2vpnPWToL2vpnIndex	1.3.6.1.4.1.9.9.700.1.2.1.5	CiscoCableL2vpnIndex	read-only	This object identifies the L2vpnIndex assigned by CMTS for this pseudo-wire peer IP address/VCID pair and for this Cable Modem MAC Address/VPN.
ccl2vpnL2vpnIndexPWTable	1.3.6.1.4.1.9.9.700.1.3		not-accessible	For every VPN provisioned for the L2VPN Cable Modem, the CMTS establishes pseudo-wire. This table maps L2vpnIndex to pseudo-wire configuration parameters.
ccl2vpnL2vpnIndexPWEntry	1.3.6.1.4.1.9.9.700.1.3.1		not-accessible	Each row contains the L2vpnIndex for the pseudo-wire and the corresponding configuration paramters including the Cable Modem MAC address, VPN identifier, peer IP address, Virtual Circuit Identifier (VCID) and pseudo-wire type. Entry in this table is populated for each one of the pseudo-wire provisioned on the CMTS.
CIS ccl2vpnL2vpnIndex	1.3.6.1.4.1.9.9.700.1.3.1.1	CiscoCableL2vpnIndex	not-accessible	This object identifies the L2vpnIndex assigned for this Cable Modem MAC Address/VPN pair by the CMTS.
MAC ccl2vpnPWMAC	1.3.6.1.4.1.9.9.700.1.3.1.2	MacAddress	read-only	This object identifies the Cable Modem MAC address.
OCT ccl2vpnPWVpnId	1.3.6.1.4.1.9.9.700.1.3.1.3	OCTET STRING	read-only	This object identifies the VPN Identifier provisioned for L2VPN Cable Modem.
IPt ccl2vpnPWPeerIPAddressType	1.3.6.1.4.1.9.9.700.1.3.1.4	InetAddressType	read-only	This object identifies the pseudo-wire peer IP address type.
IP ccl2vpnPWPeerIPAddress	1.3.6.1.4.1.9.9.700.1.3.1.5	InetAddress	read-only	This object identifies the pseudo-wire peer IP address. The type of this address is determined by the value of ccl2vpnPWPeerIPAddressType object.
CPW ccl2vpnPWType	1.3.6.1.4.1.9.9.700.1.3.1.6	CpwVcType	read-only	This object identifies the pseudo-wire type.
CPW ccl2vpnPWVCID	1.3.6.1.4.1.9.9.700.1.3.1.7	CpwVcIDType	read-only	This object identifies the Virtual Circuit Identifier (VCID) for pseudo-wire.
ciscoCableL2vpnMIBConform	1.3.6.1.4.1.9.9.700.2
ccl2vpnMIBCompliances	1.3.6.1.4.1.9.9.700.2.1
ccl2vpnMIBCompliance	1.3.6.1.4.1.9.9.700.2.1.1
ccl2vpnMIBGroups	1.3.6.1.4.1.9.9.700.2.2
ccl2vpnPWMappingGroup	1.3.6.1.4.1.9.9.700.2.2.1

RFC description

Cisco CMTS Layer 2 VPN management for DOCSIS BSOD pseudo-wire configuration, mappings, and service metrics.

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Download CISCO-CABLE-L2VPN-MIB

What Is CISCO-CABLE-L2VPN-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description