Configuring Ipv4 Is-Is To Advertise A Default Route - Huawei S6700 Series Configuration Manual

S6700 Series Ethernet Switches
Configuration Guide - IP Routing
Procedure
l
l
----End

6.7.3 Configuring IPv4 IS-IS to Advertise a Default Route

To forward all traffic in an IS-IS area through a default route, configure IS-IS on a Level-1-2
device to advertise the default route.
Context
Only the route 0.0.0.0/0 can be advertised as a default route on a Level-1-2 device. All traffic
destined for other areas is first forwarded to the Level-1-2 device.
To ensure successful traffic forwarding, external routes must be learned on the Level-1-2 device.
Issue 01 (2012-03-15)
Configure the IS-IS preference value.
1. Run:
system-view
The system view is displayed.
2. Run:
isis [ process-id ]
The IS-IS view is displayed.
3. Run:
preference preference
The IS-IS preference value is configured.
NOTE
A smaller preference value indicates a higher preference.
The default IS-IS preference value is 15.
Configure preference values for specified IS-IS routes.
1. Run:
system-view
The system view is displayed.
2. Run:
isis [ process-id ]
The IS-IS view is displayed.
3. Run:
preference preference route-policy route-policy-name
The preference values are configured for the specified IS-IS routes.
NOTE
preference takes effect only for IS-IS routes that match the specified routing policy.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
6 IS-IS Configuration
268