Huawei Quidway S3700 Series Configuration Manual page 210

Quidway S3700 Series Ethernet Switches
Configuration Guide - Reliability
Figure 4-8 Application scenario of association between an Ethernet CFM module and an
interface (4)
Ethernet0/0/1
An LAG in 1:1 backup mode is configured on SwitchA and SwitchB. Ethernet CFM is
configured between SwitchA and SwitchC, SwitchA and SwitchD, SwitchB and SwitchC, and
SwitchB and SwitchD. The Ethernet CFM modules are associated with Eth 0/0/1 and Eth
0/0/2 respectively on SwitchA and SwitchB.
When a connectivity fault occurs on the link between SwitchA and SwitchC, the Ethernet CFM
module detects the fault and reports the fault to the OAM management module. The OAM
management module blocks and then unlocks Eth 0/0/1. Then the LAG detects the fault and
switches data to the inactive link. The process of handling faults on other links is similar to that
on the link between SwitchA and SwitchC. This implements protection switching within 50 ms
to achieve carrier-class reliability.
Pre-configuration Tasks
Before configuring association between an Ethernet CFM module and an interface, complete
the following tasks:
l
l
Data Preparation
To configure association between an Ethernet CFM module and an interface, you need the
following data.
No.
1
2
Issue 01 (2011-10-26)
Eth-Trunk1
SwitchA
Ethernet0/0/2
Ethernet0/0/1
Aggregation group in 1:1
active/standby mode
Link Aggregation Configuration
4.8 Configuring Basic Ethernet CFM
Data
Type and number of an interface
Names of the MD and MA and ID of the RMEP
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
SwitchC
Ethernet0/0/1
SwitchD
4 Ethernet OAM Configuration
Ethernet0/0/2
Eth-Trunk1
Ethernet0/0/2
Active link
MEPs in MA1
Inactive link
MEPs in MA2
MEPs in MA3
MEPs in MA4
Ethernet0/0/1
SwitchB
Ethernet0/0/2
198