Huawei NetEngine80E Configuration Manual - Reliability page 693

HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability
Applicable Environment
MPLS-TP has been widely used on transport networks. Since traditional transport networks,
such as SDH and OTN networks, set high benchmarks for reliability and maintenance, MPLS-
TP needs to provide powerful OAM capabilities.
MPLS-TP OAM can detect faults on PWs that are built over bidirectional LSPs and collect
performance statistics. On the PW shown in
are MIPs. MPLS-TP OAM runs on the MEPs and MIPs and provide the functions listed in
10-6.
Figure 10-4 Networking diagram for a PW built over a bidirectional LSP
T-PE
Table 10-6 MPLS-TP OAM functions supported by the NE80E/40E
Function
Fault management
Performance statistics
Issue 02 (2011-09-10)
S-PE
LSP
Application
Scenario
Connectivity check
Packet loss statistics
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10 MPLS-TP OAM Configuration
Figure 10-4, the T-PEs are MEPs, and the S-PEs
S-PE
Maintenance End Point
Maintenance Intermediate Point
Configuration Procedure
Continuity check
continuous connectivity between the T-PEs
of a PW built over a bidirectional LSP. If a
link fault is detected, an alarm will be
generated and the link status will change to
Down.
Loopback (LB): checks the continuous
connectivity between the T-PEs of a PW
built over a bidirectional LSP based on
requirements. Check results will be
displayed on a terminal.
Connectivity Verification
whether CC configurations on the ingress
LER and egress LER of a PW are consistent
and will report alarms if any inconsistency
is detected.
Loss Measurement
statistics about packets dropped between
the ingress LER and egress LER of a PW
built over a bidirectional LSP.
Table
T-PE
(CC): checks the
(CV): checks
(LM): checks
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