Cisco ASR 920 series Configuration Guide Ethernet Router

PurposeCommand or Action
Enables cross-checking between the list of configured
remote MEPs of a domain and MEPs learned through
CCMs.
ethernet cfm mep crosscheck {enable | disable} domain
domain-name {port | vlan {vlan-id | vlan-id - vlan-id | ,
vlan-id - vlan-id}}
Example:
Device# ethernet cfm mep crosscheck enable domain
cust4 vlan 100
Step 9
Configuring Multi-UNI CFM MEPs in the Same VPN
Effective with Cisco IOS-XE Release 3.14S, services can be configured, such that two or more bridge domains
(BDs) are used to achieve UNI isolation and backhauling towards provider edge (PE) device. Local MEPs
(with up direction) should be configured on the UNIs (with the associated BDs) to monitor the service backhaul
connection. To achieve this, use the alias command to configure a Connectivity Fault Management (CFM)
Maintenance Association (MA). For example, MA2 can be an alias to another MA, MA1. As a result, MA1
behaves as though it is configured as MA2 on a different BD associated with it. MA1 and MA2 function as
if they are part of the same service, thus associating the same CFM MA to two different BDs and achieving
UNI isolation.
The following figure shows the configuring Mutli-NNI CFM in the same VPN.
Figure 9: Sample Multi-NNI CFM in the Same VPN
Carrier Ethernet Configuration Guide (Cisco ASR 920 Series)
271
Configuring Ethernet CFM
Configuring Multi-UNI CFM MEPs in the Same VPN

Cisco ASR 920 series Specifications

General

Brand	Cisco
Model	ASR 920 series
Category	Network Router
Language	English