H3C Technologies H3C SR8800 - Manual (Page 174)

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Step Command Remarks
1. Enter system view. system-view N/A
2. Enter IS-IS view.
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
N/A
3. Configure the filtering of
routes redistributed from
another routing protocol or
IS-IS process.
filter-policy { acl-number | ip-prefix
ip-prefix-name | route-policy
route-policy-name } export [ protocol
[ process-id ] ]
Not configured by
default
Configuring IS-IS route leaking
With IS-IS route leaking enabled, the Level-1-2 router can advertise the routing information of other Level-1
areas and Level-2 area routing information to Level-1 routers.
To configure IS-IS route leaking:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter IS-IS view. isis [ process-id ] [ vpn-instance vpn-instance-name ] N/A
3. Enable IS-IS route
leaking.
import-route isis level-2 into level-1 [ filter-policy
{ acl-number | ip-prefix ip-prefix-name | route-policy
route-policy-name } | tag tag ] *
Disabled by
default
NOTE:
•
If a filter policy is specified, only routes passing it can be advertised into Level-1 area.
• You can specify a routing policy in the import-route isis level-2 into level-1 command to filter routes
from Level-2 to Level-1. Other routing policies specified for route reception and redistribution does not
affect the route leaking.
Tuning and optimizing IS-IS networks
Configuration prerequisites
Before the configuration, complete the following tasks:
• Configure IP addresses for interfaces, and make sure that all neighboring nodes are reachable to
each other at the network layer.
• Enable IS-IS.
Specifying intervals for sending IS-IS hello and CSNP packets
To configure intervals for sending IS-IS hello and CSNP packets:
Step Command Remarks
1. Enter system view. system-view N/A