Specifications

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Cisco MWR 2941 Mobile Wireless Edge Router Software Configuration Guide, Release 12.2(33)MRB
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Appendix B Cisco MWR 2941 Router Command Reference
ethernet cfm mep level mpid vlan
Usage Guidelines Following is the order in which you must configure Ethernet connectivity fault management (CFM)
elements:
1. Domain at the same level as the MEP to be configured
2. Service within the domain
3. Maintenance intermediate point (MIP) at a level higher than the MEP if the domain is not an outward
domain
4. MEP
If you do not configure elements in this sequence, the ethernet cfm mep level mpid vlan command
fails. An exception is at maintenance level 7, where configuring a MIP on the interface before you
configure a MEP is not required. Configuring a MIP on an interface also is not required when you are
configuring an outward facing MEP.
A single interface may belong to multiple domains, which means you can issue multiple instances of the
ethernet cfm mep level mpid vlan command for different domains and for different VLANs.
More than one domain can be configured at a single level. The level plus VLAN indicates the domain to
which the MEP belongs.
You can configure a single MEP, a list of MEPs, or a range of MEPs so that there is one MEP per VLAN
and all MEPs share the same level, direction, and maintenance endpoint ID (MPID).
If the direction of the MEP is not stated, the default is inward facing (toward the Bridge). When you
specify an outward MEP, you must provide a domain name. If the specified domain has not been
configured or if the specified domain has not been tagged as outward, an error message displays and the
command is rejected.
All MEPs and MIPs must be removed from an interface before MEPs at level 7 can be configured. Also,
when you remove MEP configurations at Level 7, you should first remove all lower level MEPs. If you
try to configure a MEP on an interface with a level higher than the MIP level, the command is rejected
and an error message is displayed.
If an interface is provisioned to be a MIP for a certain maintenance level and you try to configure the
interface as an inward MEP for a VLAN at the same level, the command is rejected and an error message
displays. If a VLAN for which a MEP is configured is removed from an interface, the MEP configuration
remains, but the MEP is inactive and does not transmit or receive messages because the definition of the
MEP is associated with the VLAN.
Examples The following example shows how to set interface Ethernet 0/1 as a domain boundary and define it as a
MEP at level 5, with a MPID of 5 on VLAN 101, and then issue the show ethernet cfm
maintenance-points local command to display the list of configured MEPs in the device:
Router(config)# interface ethernet 0/1
Router(config-if)# ethernet cfm mep level 5 mpid 5 vlan 101
Router(config-if)# Ctrl-Z
Router(config)# show ethernet cfm maintenance-points local
12.2(33)SRD This command was added to support outward facing MEPs on switch ports
on Cisco 7600 series routers.
12.2(33)MRA This command was integrated into Cisco IOS Release 12.2(33)MRA.
Release Modification