Optional) Configuring Cc And Cv For An Lsp - Huawei NetEngine80E Configuration Manual - Reliability

HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability
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Two P2P LSPs in opposite directions are set up over a bidirectional co-routed transport path in
a MEG. This means that there is a single LSP in both directions between a MEP and its RMEP.
A single ME operates along this P2P LSP.
Perform the following steps on the MEP and RMEP:
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
mpls-tp meg
A MEG is created, and the MEG view is displayed.
Step 3 Run:
me te interface
mep-id
An ME is created and bound to a bidirectional co-routed TE tunnel.
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10.2.3 (Optional) Configuring CC and CV for an LSP

The CC and CV functions provided by MPLS-TP OAM can be configured for an LSP to check
its continuous connectivity and forwarding correctness.
Context
CC and CV are two different MPLS-TP OAM functions. CC checks loss of continuity (LOC)
defects between two MEPs in a MEG. CV is used to detect consistency of configurations on two
MEPs in a MEG or in different MEGs. The purpose of CC greatly differs from that of CV. The
details are as follows:
Issue 02 (2011-09-10)
goes Up only when the LSP is Up in the two directions. If the LSP is Down in one direction,
the LSP is in the Down state. The two forwarding entries are associated with each other.
With the IP forwarding capability, any intermediate node can send back a response packet
along the source path.
Static bidirectional co-routed LSPs supported by MPLS-TP can be monitored by TP OAM.
A MEG maps a static bidirectional co-routed LSP, which maps only one ME. The LSP
includes two MEPs at the ingress and egress nodes of the LSP.
Static bidirectional associated LSP: composed of two opposite RSVP-TE LSPs that are
configured between the source and destination ends. On the source and destination ends,
the first node of one tunnel is bound to the end node of the other tunnel, forming a dynamic
bidirectional associated LSP. The dynamic bidirectional associated LSP can solve network
congestion. In addition, when one end goes faulty, the other end will be notified of the fault
and then the two ends can perform link switching at the same time, preventing service
interruption.
Static bidirectional associated LSPs supported by MPLS-TP can also be monitored by TP
OAM. The MEG mapping to a static bidirectional associated LSP includes two MEs. The
LSP includes two MEPs at the ingress and egress nodes of the LSP.
meg-name
interface-type interface-number mep-id mep-id remote-mep-id remote-
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10 MPLS-TP OAM Configuration
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