Introduction; Mpls-Tp Oam Overview; Mpls-Tp Oam Features Supported By The Ne80E/40E - Huawei NetEngine80E Configuration Manual - Reliability

HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability

10.1 Introduction

MPLS-TP OAM is used for MPLS-TP operation and maintenance.

10.1.1 MPLS-TP OAM Overview

MPLS-TP OAM can effectively detect, identify, and locate faults at the MPLS-TP user layer
and quickly switch traffic when links or nodes become defective or faulty. OAM is an effective
means to reduce network maintenance expenditure. MPLS-TP OAM is used for OAM at the
MPLS-TP layer.
Background
Along with network and service transformation and integration, various new services emerge,
such as triple play services, Next Generation Network (NGN) services, carrier Ethernet services,
and Fiber-to-the-x (FTTx) services. These services require more investment and OAM costs,
and high capabilities of QoS, full service access, and the expansibility, reliability, and
manageability of transport networks. Traditional transport network technologies such as Multi-
Service Transmission Platform (MSTP), Synchronous Digital Hierarchy (SDH), and
Wavelength Division Multiplexing (WDM) cannot meet these requirements because they lack
the control plane. MPLS-TP, however, can meet these requirements because its functions can
be used on both traditional transport networks and next-generation transport networks that are
capable to process packets.
Since traditional transport networks (for example, SDH or OTN networks) set high benchmarks
for reliability and maintenance, MPLS-TP needs to provide powerful OAM capabilities. MPLS-
TP OAM provides the following functions:
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MPLS-TP OAM Functional Components
MPLS-TP OAM functions are performed on maintenance entities (MEs). An ME consists of a
pair of maintenance entity group end points (MEPs) (namely, the two ends of a link) and a group
of maintenance entity group intermediate points (MIPs) (namely, the intermediate nodes along
the link between the two ends).
The details of MPLS-TP OAM functional components are as follows:

10.1.2 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
functions.
Issue 02 (2011-09-10)
Fault management
Performance monitoring
Protection switching
Table 10-1, MPLS-TP OAM supports the link fault detection and alarm suppression
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