Figure 9-1
Schematic diagram of ME deployment on a point-to-point bidirectional LSP
Ingress LER
Transit LER
Transit LER
Egress LER
LSP
ME1
ME2
ME
l
MEG
A MEG is a maintenance entity group that is composed of one or more MEs that are on the
same transport path. If the transport path is a point-to-point bidirectional path such as a
bidirectional LSP or a PW, a MEG is composed of only one ME
l
MEP
are source and sink node of the MEG.
Figure 9-2
Schematic diagram of ME node deployment
Ingress LER
Transit LER
Transit LER
Egress LER
LSP
Maintenance End Point
Maintenance Intermediate Point
–
On a bidirectional LSP, only LERs can serve as MEPs. In
, the ingress LER
and egress LER are MEPs.
–
On an MPLS-TP PW, only UPEs can serve as MEPs.
MEPs trigger and control MPLS-TP OAM operations. OAM packets can be generated or
terminated on MEPs.
9.1.2 MPLS-TP OAM Features Supported by the NE80E/40E
MPLS-TP OAM provides the performance monitoring and fault detection functions.
Fault Management
As shown in
, MPLS-TP OAM supports the link fault detection and alarm suppression
functions.
HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability
9 MPLS-TP OAM Configuration
Issue 02 (2014-09-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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