CHAPTER 9
CFM Configuration over EFP Interface with Cross
Connect Feature
Ethernet Connectivity Fault Management (CFM) is an end-to-end per-service-instance Ethernet layer OAM
protocol that includes proactive connectivity monitoring, fault verification, and fault isolation. Currently,
Ethernet CFM supports Up facing and Down facing Maintenance Endpoints (MEPs). For information on
Ethernet Connectivity Fault Management, see http://www.cisco.com/en/US/docs/ios/12_2sr/12_2sra/feature/
guide/srethcfm.html
The CFM over EFP Interface with xconnect feature allows you to:
•
Forward continuity check messages (CCM) towards the core over cross connect pseudowires.
•
Receive CFM messages from the core.
•
Forward CFM messages to the access side (after Continuity Check Database [CCDB] based on
maintenance point [MP] filtering rules).
•
Finding Feature Information, page 213
•
Restrictions for CFM Configuration over EFP Interface with Cross Connect Feature, page 214
•
Configuring CFM over EFP with Cross Connect, page 214
•
Verifiying CFM over EFP, page 227
•
Troubleshooting CFM Features, page 229
•
Additional References, page 230
•
Feature Information for CFM Configuration over EFP Interface with Cross Connect Feature, page 231
Finding Feature Information
Your software release may not support all the features documented in this module. For the latest caveats and
feature information, see Bug Search Tool and the release notes for your platform and software release. To
find information about the features documented in this module, and to see a list of the releases in which each
feature is supported, see the feature information table.
Carrier Ethernet Configuration Guide (Cisco ASR 920 Series)
213
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