H3C Technologies H3C S10500 Series Switches - Manual (Page 170)

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To do… Use the command… Remarks
Enter IS-IS view
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
—
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 ] ]
Required
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.
Follow these steps to configure IS-IS route leaking:
To do… Use the command… Remarks
Enter system view system-view —
Enter IS-IS view isis [ process-id ] [ vpn-instance vpn-instance-name ] —
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 ] *
Required
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 tuning and optimizing IS-IS networks, complete the following tasks:
• Configure IP addresses for interfaces, and make adjacent nodes reachable to each other at the
network layer.
• Enable IS-IS
Specifying intervals for sending IS-IS hello and CSNP packets
Follow these steps to configure intervals for sending IS-IS hello and CSNP packets:
To do… Use the command… Remarks
Enter system view system-view —
Enter interface view
interface interface-type
interface-number
—