Example For Configuring Static Bfd For Is-Is - Huawei Quidway NetEngine80E Configuration Manual

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing

7.24.14 Example for Configuring Static BFD for IS-IS

This part provides an example for configuring static BFD for IS-IS to fast detect faults and report
them to IS-IS. In this manner, the fast switchover of service traffic is triggered.
Networking Requirements
As show in
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l
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Figure 7-17 Networking diagram of configuring static BFD for IS-IS
RouterA
Configuration Roadmap
The configuration roadmap is as follows:
1.
2.
Data Preparation
To complete the configuration, you need the following data:
Issue 02 (2014-09-30)
graceful-restart
graceful-restart interval 150
network-entity 10.0000.0000.0003.00
#
interface GigabitEthernet 1/0/0
link-protocol ppp
ip address 10.1.1.2 255.255.255.0
isis enable 1
#
interface GigabitEthernet 2/0/0
link-protocol ppp
ip address 10.2.1.1 255.255.255.0
isis enable 1
#
return
Figure 7-17:
A Layer 2 switch exists between Router A and Router B.
Router A, Router B and Router C run IS-IS.
BFD is configured to detect the IS-IS neighbor relationship between Router A and Router
B. When the link between Router A and Router B is faulty, BFD can fast detect the default
and report it to IS-IS.
GE1/0/0
10.1.1.1/24
NOTE
BFD for IS-IS cannot be used to detect the multi-hops link between Router A and Router C, because the
IS-IS neighbor relationship cannot be established between Router A and Router C.
Enable basic IS-IS functions on each router.
Enable BFD on Router A and Router B.
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GE1/0/0
GE2/0/0
10.1.1.2/24
10.2.1.1/24
RouterB
7 IS-IS Configuration
GE1/0/0
RouterC
10.2.1.2/24
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