Huawei Quidway NetEngine80E Configuration Manual page 740

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
Procedure
Step 1 Configure an IP address for each interface.
This example assumes that you know the configuration method and no details are provided here.
Step 2 Configure the basic IS-IS functions.
This example assumes that you know the configuration method and no details are provided here.
Step 3 Configure IS-IS GR.
# Enable IS-IS GR on Router A and set the restart interval. The configurations of Router B and
Router C are the same as the configuration of Router A. Take the configuration of Router A as
an example.
[RouterA] isis 1
[RouterA-isis-1] graceful-restart
[RouterA-isis-1] graceful-restart interval 150
Step 4 Verify the configuration.
# Run the display fib command on Router A to view the Forwarding Information Base (FIB)
table.
<RouterA> display fib
FIB Table:
Total number of Routes : 6
Destination/Mask
127.0.0.1/32
127.0.0.0/8
10.1.1.1/32
10.1.1.0/24
10.1.1.2/32
10.2.1.0/24
# Restart the IS-IS process on Router A in GR mode.
<RouterA> reset isis all graceful-restart
# Run the display fib command on Router A, and view the FIB table to check whether GR works
normally. If GR works normally, the FIB table does not change and the forwarding service is
not affected when Router A restarts the IS-IS process in GR mode.
<RouterA> display fib
FIB Table:
Total number of Routes : 6
Destination/Mask
127.0.0.1/32
127.0.0.0/8
10.1.1.1/32
10.1.1.0/24
10.1.1.2/32
10.2.1.0/24
As shown in the display, the FIB table on Router A does not change and the forwarding service
is not affected.
# Disable IS-IS GR on Router A.
[RouterA] isis 1
Issue 02 (2014-09-30)
Nexthop
127.0.0.1
127.0.0.1
127.0.0.1
10.1.1.1
10.1.1.2
10.1.1.2
NOTE
A router restarts an IS-IS process in GR mode only when GR is enabled in the IS-IS process.
Nexthop
127.0.0.1
127.0.0.1
127.0.0.1
10.1.1.1
10.1.1.2
10.1.1.2
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Flag TimeStamp Interface
HU t[21] InLoop0
U t[21] InLoop0
HU t[20678] InLoop0
U t[20678] GE1/0/0
HU t[20678] GE1/0/0
DGU t[79388] GE1/0/0
Flag TimeStamp Interface
HU t[21] InLoop0
U t[21] InLoop0
HU t[20678] InLoop0
U t[20678] GE1/0/0
HU t[20678] GE1/0/0
DGU t[79388] GE1/0/0
7 IS-IS Configuration
TunnelID
0x0
0x0
0x0
0x0
0x0
0x0
TunnelID
0x0
0x0
0x0
0x0
0x0
0x0
715