Specifications

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Cisco MWR 2941 Mobile Wireless Edge Router Software Configuration Guide, Release 12.2(33)MRB
OL-21227-02
Chapter 4 Configuring the Cisco MWR 2941 Router Using the CLI
Configuration Sequence
Step 3 Use the ethernet cfm enable command to enables CFM processing globally on the router.
Router(config)# ethernet cfm enable
Step 4 Use the ethernet cfm traceroute cache command to enable caching of CFM data learned through
traceroute messages.
Router(config)# ethernet cfm traceroute cache
Step 5 Use the ethernet cfm traceroute cache size command to set a maximum size for the Ethernet CFM
traceroute cache table.
Router(config)# ethernet cfm traceroute cache size 112
Step 6 Use the ethernet cfm traceroute cache hold-time command to set the time that Ethernet connectivity
fault management (CFM) traceroute cache entries are retained.
Router(config)# ethernet cfm traceroute cache hold-time 65535
Step 7 Use the ethernet cfm cc enable command to globally enable transmission of continuity check messages
(CCMs).
Router(config)# ethernet cfm cc enable level any vlan any
Step 8 Use the ethernet cfm cc level command to set parameters for continuity check messages (CCMs).
Router(config)# ethernet cfm cc level any vlan any interval 20 loss-threshold 3
Step 9 Use the snmp-server enable traps ethernet cfm cc command to enable SNMP trap generation for
Ethernet CFM continuity check events.
Router(config)# snmp-server enable traps ethernet cfm cc mep-up mep-down config loop
cross-connect
Step 10 Use the snmp-server enable traps ethernet cfm crosscheck command to enable SNMP trap
generation for Ethernet CFM continuity check events in relation to the cross-check operation between
statically configured MEPS and those learned via CCMs.
Router(config)# snmp-server enable traps ethernet cfm crosscheck mep-unknown mep-missing
service-up
Step 11 Use the ethernet lmi global command to enable Ethernet local management interface (LMI) globally on
the router.
Router(config)# ethernet lmi global
Step 12 Follow these steps to configure an interface to use CFM.
a. Use the interface command to specify an interface and enter interface configuration mode.
Router(config)# interface GigabitEthernet0/2
Router(config-if)#
a. If you specified a VLAN ID for the CFM service, use the switchport access vlan command to put
the interface into the VLAN.
Router(config-if)# switchport access vlan 600
b. If you want to specify the interface as a trunking VLAN Layer 2 interface, enter the switchport
mode trunk command.
Router(config-if)# switchport mode trunk
c. If you set the interface in trunking mode, use the switchport trunk native command to set the native
VLAN for the trunk.