Example For Configuring Ospf Ip Frr - Huawei Quidway NetEngine80E Configuration Manual

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing

5.16.9 Example for Configuring OSPF IP FRR

Networking Requirements
When a fault occurs on the network, OSPF IP FRR can fast switch traffic to the backup link
without waiting for route convergence. This ensures uninterrupted traffic transmission.
As shown in
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Figure 5-14 Networking diagram for configuring OSPF IP FRR
10.1.1.1/24
Configuration Roadmap
The configuration roadmap is as follows:
1.
2.
3.
Data Preparation
To complete the configuration, you need the following data:
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Issue 02 (2014-09-30)
Figure 5-14:
OSPF runs on the four routers in the same area.
If the link between Router A and Router C becomes faulty, the traffic forwarded by
Router A is rapidly switched to the backup link and forwarded through Router B.
RouterB
GE1/0/1
10.1.1.2/24
GE1/0/1
cost = 4
GE1/0/2
RouterA
10.2.1.1/24
Configure basic OSPF functions on each router.
Set the cost to ensure that the link from Router A to Router C is preferred.
Enable OSPF IP FRR on Router A to protect the traffic forwarded by Router A.
Router ID (1.1.1.1), OSPF process ID (1), network segment addresses in Area 1 (10.1.1.0
and 10.2.1.0), and interface cost (as shown in
Router ID (2.2.2.2), OSPF process ID (1), network segment addresses in Area 1 (10.1.1.0
and 10.3.1.0), and interface cost (as shown in
Router ID (3.3.3.3), OSPF process ID (1), network segment addresses of Area 1 (10.2.1.0,
10.3.1.0, and 10.4.1.0), and interface cost (as shown in
Router ID (4.4.4.4), OSPF process ID (1), network segment address in Area 1
(10.4.1.0),interface cost (as shown in
static route (172.16.1.1/32) of Router D
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GE1/0/2
10.3.1.1/24
GE1/0/3
10.3.1.2/24
GE1/0/1
RouterC
10.2.1.2/24
Figure
Figure
Figure 5-14), and destination address of the imported
5 OSPF Configuration
cost = 55
GE1/0/2 GE1/0/1
10.4.1.1/24 10.4.1.2/24
5-14) of Router A
5-14) of Router B
Figure 5-14) of Router C
RouterD
383