3Com Switch 4800G 24-Port Configuration Manual page 345

n
Advertising a Default
Route
n
Configuring Inbound
Route Filtering
Configuring Route
Redistribution
To do...
Enter IS-IS view
Configure IS-IS route
summarization
The cost of the summary route is the lowest cost among those summarized routes.
Follow these steps to advertise a default route:
To do... Use the command...
Enter system view system-view
Enter IS-IS view isis [ process-id ]
Advertise a default default-route-advertise
route [ route-policy route-policy-name ]
[ level-1 | level-2 | level-1-2 ]
The default route is only advertised to routers at the same level. You can use a
routing policy to generate the default route only when a local routing entry is
matched by the policy.
Follow these steps to configure inbound route filtering:
To do...
Enter system view
Enter IS-IS view
Configure inbound route
filtering
Follow these steps to configure IS-IS route redistribution from other routing
protocols:
To do... Use the command...
Enter system view system-view
Enter IS-IS view isis [ process-id ]
Redistribute routes import-route { isis [ process-id ] |
from another routing ospf [ process-id ] | rip [ process-id ] |
protocol bgp [ allow-ibgp ] | direct | static }
[ cost cost | cost-type { external |
internal } | [ level-1 | level-1-2 |
level-2 ] | route-policy
route-policy-name | tag tag ] *
Configuring IS-IS Routing Information Control
Use the command...
isis [ process-id ]
summary ip-address { mask |
mask-length } [ avoid-feedback |
generate_null0_route | tag tag |
[ level-1 | level-1-2 | level-2 ] ] *
Use the command...
system-view
isis [ process-id ]
filter-policy { acl-number |
ip-prefix ip-prefix-name |
route-policy route-policy-name }
import
345
Remarks
--
Required
Not configured by
default
Remarks
--
-
Optional
Level-2 router generates a
default route by default.
Remarks
--
--
Required
Not configured by default
Remarks
--
--
Required
No route is redistributed by
default.
If no level is specified, routes
are redistributed into the
Level-2 routing table by
default.