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Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
Chapter  Configuring Ethernet Virtual Connection Bridge Domain
Connectivity Fault Management (CFM) over EVC BD
Step 11
ethernet cfm global
Example:
Router(config)# ethernet cfm global
Enables CFM processing globally on the device.
Step 12
ethernet cfm ieee
Example:
Router(config)# ethernet cfm ieee
Enables the CFM IEEE version of CFM.
• This command is automatically issued when the 
ethernet cfm global command is issued.
Step 13
ethernet cfm traceroute cache
Example:
Router(config)# ethernet cfm 
traceroute cache
Enables caching of CFM data learned through traceroute 
messages.
Step 14
ethernet cfm traceroute cache size 
entries
Example:
Router(config)# ethernet cfm 
traceroute cache size 200
Sets the maximum size for the CFM traceroute cache 
table.
Step 15
ethernet cfm traceroute cache 
hold-time minutes
Example:
Router(config)# ethernet cfm 
traceroute cache hold-time 60
Sets the amount of time that CFM traceroute cache entries 
are retained.
Step 16
interface type number
Example:
Router(config)# interface ethernet 
0/3
Specifies an interface and enters interface configuration 
mode.
Step 17
ethernet cfm mep domain domain-name 
mpid mpid {port| vlan vlan-id}
Example:
Router(config-if)# ethernet cfm mep 
domain Customer mpid 701 vlan 100
Sets a port as internal to a maintenance domain and 
defines it as a MEP.
Step 18
ethernet cfm mep domain domain-name 
mpid mpid {port| vlan vlan-id}
Example:
Router(config-if)# ethernet cfm mep 
domain Customer mpid 701 vlan 100
Sets a port as internal to a maintenance domain and 
defines it as a MEP.
Step 19
end
Example:
Router(config-if)# end
Router#
Returns the router to the privileged EXEC mode.
Command Purpose