3Com Switch 8800 Configuration Guide Chapter 20 Integrated IS-IS Configuration
20-12
Table 20-7 Import routes of other protocols
Operation Command
Import routes of other
protocols
import-route protocol [ cost value | type { external |
internal } | [ level-1 | level-1-2 | level-2 ] | route-policy
route-policy-name ]*
Cancel importing routes
from other protocols
undo import-route protocol [ cost value | type
{ external | internal } | [ level-1 | level-1-2 | level-2 ] |
route-policy route-policy-name ]*
If the level is not specified in the command for importing the route, it defaults to
importing the routes into level-2.
protocol specifies the routing protocol sources that can be imported, which can be
direct, static, rip, bgp, and ospf, etc.
By default, IS-IS does not import routing information from any other protocols.
For more about importing routing information, refer to the "Configuring IP Routing
Policy" part.
20.2.8 Configuring IS-IS Route Filtering
IS-IS protocol can filter the received and advertised routes according to the access
control list specified by acl-number.
Perform the following configuration in IS-IS view.

I. Configuring to filter the routes received by IS-IS

Table 20-8 Configure to filter the received routes
Operation Command
Configure to filter the received routes filter-policy acl-number import
Cancel filtering the received routes undo filter-policy acl-number import

II. Configuring to filter the advertised routes

Table 20-9 Configure to filter the advertised routes
Operation Command
Configure to filter the routes advertised
by IS-IS
filter-policy acl-number export
[ protocol ]
Configure not to filter the routes
advertised by IS-IS
undo filter-policy acl-number export
[ protocol ]
By default, IS-IS does not filter the route advertised by other routing protocols.