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Configuration Note 30 Document #: LTRT-31672
Layer 2 Bridging using CLI
Command Description
(config-data)# ethernet cfm
debounce [1-500]
Debounce is the number of port-down
packets to receive before blocking ports.
(config-data)# ethernet mep
domain [DOMAIN_NAME] mpid
[MEP_identifier_Num]
Configures the MEP on the MSBR and
enters the MEP to Configuration mode.
(conf-mep)# continuity-check
interval
[100ms,10m,10ms,10s,1m,1s,3ms]
The Continuity Check Message (CCM)
provides a way to detect connectivity
failures. CCMs are multicast messages.
CCMs are confined to a domain. These
messages are unidirectional and do not
solicit a response.
(conf-mep)# level [0-7]
Configures the domain level. The larger the
domain, the higher the level. For example, a
service-provider domain would be larger
than an operator domain and might have a
maintenance level of 6, while the operator
domain maintenance level would be 3 or 4.
(conf-mep)# interface [Any-
Physcal_interface] [slot/port
or number]
Enables and transfers CFM messages
through the insert interface.
(conf-mep)# link-state reflect
Reflects LAN link state.
(conf-mep)# service
[number|string|vid]
Set one of these options to Maintenance
association.
9.3 Example
This example shows how to configure the MSBR to serve as a Maintenance End Point
(MEP) to monitor other nodes in the network such as another MSBR on the other side of
the network.
Figure 9-1: CFM
The above example is implemented using the following commands:

MSBR1:
MSBR1(config-data)# ethernet cfm aging-time 0
MSBR1(config-data)# ethernet cfm debounce 5
MSBR1(config-data)# ethernet cfm mep domain TEST mpid 10
MSBR1(conf-mep)# level 6
MSBR1(conf-mep)# domain-name-format none
MSBR1(conf-mep)# service number 1
MPLS
Service Provider
MSBR1
Internet
Network
MSBR2
Gi 0/0 Gi 0/0
MP
MEP MEP