Huawei Quidway S3700 Series Configuration Manual page 372

Quidway S3700 Series Ethernet Switches
Configuration Guide - Reliability
Configuration Roadmap
The configuration roadmap is as follows:
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2.
3.
Data Preparation
To complete the configuration, you need the following data:
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Procedure
Step 1 Configure interworking between the Switches.
Assign IP addresses to all interfaces. # Configure OSPF between Switch A, Switch B, and Switch
C.
For details, see
Step 2 Create a BFD session.
# Create a BFD session on Switch A.
<Quidway> system-view
[Quidway] sysname SwitchA
[SwitchA] bfd
[SwitchA-bfd] quit
[SwitchA] bfd atob bind peer-ip 10.1.1.2 interface vlanif 200
[SwitchA-bfd-session-atob] discriminator local 1
[SwitchA-bfd-session-atob] discriminator remote 2
[SwitchA-bfd-session-atob] commit
[SwitchA-bfd-session-atob] quit
# Create a BFD session on Switch B.
<Quidway> system-view
[Quidway] sysname SwitchB
[SwitchB] bfd
[SwitchB-bfd] quit
[SwitchB] bfd btoa bind peer-ip 10.1.1.1 interface vlanif 200
[SwitchB-bfd-session-btoa] discriminator local 2
[SwitchB-bfd-session-btoa] discriminator remote 1
[SwitchB-bfd-session-btoa] commit
[SwitchB-bfd-session-btoa] quit
Run the display bfd session command on Switch A and Switch B, and you can see that the BFD
session is Up. Take Switch A for example. The display is as follows:
Issue 01 (2011-10-26)
Implement networking between the Switches.
Configure a BFD session on Switch A and Switch B to monitor Switch A and its downlink
Switch A - Switch C - Switch D - Switch B.
Enable VRRP to track the BFD session on Switch B. When the BFD session becomes
Down, the priority of Switch B increases by 40 and then the switchover is triggered.
NOTE
This example describes only the configurations on Switch A and Switch B.
Local and remote discriminators of the BFD session
ID and virtual IP address of the VRRP group
Priorities of the S3700s in the VRRP group
Figure 7-5.
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7 VRRP and VRRP6 Configuration
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