Example For Configuring Association Between Efm And Bfd - Huawei AR530 Series Configuration Manual

Huawei AR530&AR550 Series Industrial Switch Routers
Configuration Guide - Reliability

7.6.2 Example for Configuring Association between EFM and BFD

Networking Requirements
As networks develop quickly, more and more IP networks are used to carry multiple services
such as voice and video services. These services pose high requirements on network reliability
and rapid fault detection.
As shown in
are as follows:
l
l
l
l
Figure 7-11 Association between EFM and BFD
Network1
Configuration Roadmap
The configuration roadmap is as follows:
Issue 01 (2014-11-30)
efm enable
#
interface Ethernet2/0/1
efm mode passive
efm enable
#
oam-mgr
oam-bind ingress efm interface Ethernet2/0/1 trigger if-down egress interface
Ethernet2/0/2
oam-bind ingress interface Ethernet2/0/2 egress efm interface Ethernet2/0/1
trigger if-down
#
return
Figure 7-11, CE1 is dual-homed to PE1 and PE3. The requirements on the network
Connectivity of links between CE1 and PE3, between PE3 and PE4, and between PE4 and
CE2 can be detected.
When the link between CE1 and PE3 becomes faulty, CE2 can detect the fault, preventing
return traffic from being forwarded to PE4.
When the link between CE1 and PE3 goes faulty, a active/standby link switchover can be
implemented.
When the link between PE3 and PE4 becomes faulty, CE1 or CE2 can detect the fault.
CE1
User
GE1/0/1
PE3
EFM
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PE1
GE1/0/1
GE1/0/2 GE1/0/2
BFD
7 EFM Configuration
PE2
CE2
GE1/0/1
GE1/0/1
PE4
EFM
User
Network2
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