Huawei AR2200-S Series Configuration Manual page 188

Huawei AR2200-S Series Enterprise Routers
Configuration Guide - Reliability
2.
Data Preparation
To complete the configuration, you need the following data:
l
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Procedure
Step 1 Configure reachable routes between Router A, Router B, and Router C.
In this example, static routes are used. The detailed configurations are not provided.
Step 2 Configure multi-hop BFD between Router A and Router C.
# Configure a BFD session between Router A and Router C.
The interface is not bound to the BFD session.
<RouterA> system-view
[RouterA] bfd
[RouterA-bfd] quit
[RouterA] bfd atoc bind peer-ip 10.2.1.2
[RouterA-bfd-session-atoc] discriminator local 10
[RouterA-bfd-session-atoc] discriminator remote 20
[RouterA-bfd-session-atoc] commit
[RouterA-bfd-session-atoc] quit
# Configure a BFD session between Router C and Router A.
The interface is not bound to the BFD session.
<RouterC> system-view
[RouterC] bfd
[RouterC-bfd] quit
[RouterC] bfd ctoa bind peer-ip 10.1.1.1
[RouterC-bfd-session-ctoa] discriminator local 20
[RouterC-bfd-session-ctoa] discriminator remote 10
[RouterC-bfd-session-ctoa] commit
[RouterC-bfd-session-ctoa] quit
Step 3 Verify the configuration.
After the configurations, run the display bfd session all verbose command on Router A and
Router C. You can view that a multi-hop BFD session has been set up and its status is Up.
Use the display on Router A as an example.
<RouterA> display bfd session all
--------------------------------------------------------------------------------
Session MIndex : 256
--------------------------------------------------------------------------------
Local Discriminator
Session Detect Mode
BFD Bind Type
Bind Session Type
Bind Peer Ip Address
Issue 01 (2012-01-06)
Configure a BFD session on Router C to detect faults in multi-hop routes between Router
C and Router A.
Peer IP address for a BFD session
Local and remote discriminators of a BFD session
NOTE
Default values of the minimum sending interval, minimum receiving interval, and local detection multiplier
for BFD control packets are used.
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(Multi Hop) State : Up
: 10 Remote Discriminator
: Asynchronous Mode Without Echo Function
: Peer Ip Address
: Static
: 10.2.1.2
3 BFD Configuration
Name : atoc
: 20
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