Example For Configuring Is-Is Auto Frr (Ip Protecting Ip) - Huawei Quidway NetEngine80E Configuration Manual

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
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7.24.11 Example for Configuring IS-IS Auto FRR (IP protecting IP)

This part provides an example for fast switching services to the backup link in the case of IS-IS
link failures through IS-IS Auto FRR (IP protecting IP).
Networking Requirements
When a fault occurs on a network, IS-IS Auto FRR fast switches traffic to a backup link before
the route convergence. This prevents traffic interruption.
In Figure
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Issue 02 (2014-09-30)
bfd btoa bind peer-ip 10.1.1.2 interface GigabitEthernet1/0/0
discriminator local 1
discriminator remote 2
commit
#
return
Configuration file of Router B
#
sysname RouterB
#
bfd
#
isis 1
is-level level-2
timer lsp-generation 1 1 120 level-1
timer lsp-generation 1 1 120 level-2
flash-flood level-1
flash-flood level-2
network-entity 10.0000.0000.0002.00
timer spf 1 20 100
#
interface GigabitEthernet1/0/0
ip address 10.1.1.2 255.255.255.0
isis enable 1
isis bfd static
#
bfd btoa bind peer-ip 10.1.1.1 interface GigabitEthernet1/0/0
discriminator local 2
discriminator remote 1
commit
#
return
7-14:
IS-IS runs between four routers.
The four routers are all Level-1-2 routers.
If Router C or Link T fails, it is required that the traffic forwarded by Router A is rapidly
switched to the backup link.
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7 IS-IS Configuration
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