Chapter 10 Configuring Ethernet OAM

 

Command or Action

Purpose

Step 4

 

 

service instance instance-idethernet evc-name

Creates a service instance on an interface and defines the

 

 

matching criteria.

 

Example:

instance-id—Integer that uniquely identifies a service

 

Router(config-if)# service instance 1 ethernet

instance on an interface.

 

evc100

evc-name—String that associates an EVC to the service

 

 

 

 

instance. Maximum byte size is 100.

Step 5

 

 

encapsulation default

Configures the default service instance.

 

Example:

 

 

Router(config-if-srv)# encapsulation default

 

Step 6

 

 

bridge-domain bridge-id

Binds the service instance to a bridge domain instance using

 

 

an identifier.

 

Example:

 

 

Router(config-if-srv)# bridge-domain 99

 

Step 7

 

 

cfm encapsulation {dot1ad vlan-iddot1q

Configures connectivity fault management (CFM) Ethernet

 

vlan-id} [dot1q vlan-id second-dot1qvlan-id]

frame encapsulation.

 

Example:

dot1ad—Indicates the 802.1ad provider bridges

 

encapsulation type.

 

Router(config-if-srv)# cfm encapsulation dot1q

dot1q—Supports the IEEE 802.1q standard for

 

75

 

 

encapsulation of traffic and specifies the outer dot1q

 

 

encapsulation tag.

 

 

second-dot1q—Specifies the inner dot1q

 

 

encapsulation tag. Valid option only when you first

 

 

select the outer dot1q encapsulation tag. When the

 

 

dot1ad encapsulation type is selected first, dot1q is a

 

 

valid option.

 

 

vlan-id—Integer from 1 to 4094 that specifies the

 

 

VLAN on which to send CFM frames.

Step 8

 

 

cfm mep domain domain-idmpid mpid-value

Configures a maintenance endpoint (MEP) for a domain.

 

 

domain-name—String from 1 to 154 characters that

 

Example:

identifies the domain name.

 

Router(config-if-srv)# cfm mep domain md2 mpid

mpid—Indicates the maintenance point ID (MPID).

 

111

 

 

 

 

mpid-value—Integer from 1 to 8191 that identifies the

 

 

MPID.

 

 

 

Verifying CFM with EVC Default Encapsulation

To verify the configuration of CFM with EVC default encapsulation, use the show command shown below.

Router# show running-config interface gigabitEthernet 0/9

Building configuration...

 

 

Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide

 

 

 

 

 

 

OL-23826-09

 

 

10-25

 

 

 

 

 

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Cisco Systems A9014CFD manual Verifying CFM with EVC Default Encapsulation, 10-25