Cisco ASR 920 series Configuration Guide Ethernet Router

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Lower or similar level LTM/LTR cannot be forwarded on Transparent CFM service.
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Down MEP or Port MEP cannot be configured across EVC where Transparent CFM is configured.
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MIP on C-VLAN component is not supported.
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Transparent CFM is not supported on xConnect and VPLS.
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Transparent CFM should be configured only on Up MEPs.
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Transparent CFM is not supported on hardware offload (CCM interval < 1 second).
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The following table shows the supported rewrite combinations.
Table 6: Rewrite Combinations
Egress PortIngress PortIngress Frame
POP1No RewriteSingle Tag
Translate 1-to-1
No RewriteDouble Tag
Translate 1-to-1
Configuring Transparent CFM
SUMMARY STEPS
1.
enable
2.
configure terminal
3.
ethernet cfm global
4.
ethernet cfm ieee
5.
ethernet cfm domain domain-name level level-id
6.
service MA-name evc evc-name vlan vlan-id
7.
continuity-check
8.
continuity-check [interval cc-interval]
DETAILED STEPS
PurposeCommand or Action
Enables privileged EXEC mode.enable
Step 1
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Enter your password if prompted.
Carrier Ethernet Configuration Guide (Cisco ASR 920 Series)
67
Transparent CFM
Configuring Transparent CFM

Cisco ASR 920 series Specifications

General

Brand	Cisco
Model	ASR 920 series
Category	Network Router
Language	English