Advertising A Default Route; Configuring Is-Is Route Redistribution - HPE 5800 Series Configuration Manual

The router summarizes only the routes in the locally generated LSPs. The cost of the summary route
is the lowest one among the costs of summarized routes.
To configure route summarization:
Step
Enter system
1.
view.
Enter IS-IS
2.
view.
Configure IS-IS
3.
route
summarization.

Advertising a default route

A router running IS-IS cannot redistribute any default routes or advertise a default route to neighbors.
Perform this task to advertise a default route of 0.0.0.0/0 to the same level neighbors.
You can use a routing policy to generate the default route only when a local routing entry is matched
by the policy.
To advertise a default route:
Step
Enter system view.
1.
Enter IS-IS view.
2.
Advertise a default
3.
route.

Configuring IS-IS route redistribution

Redistributing large numbers of routes on a device may affect the performance of other devices in
the network. If this happens, you can configure a limit on the number of redistributed routes in order
to limit the number of routes to be advertised.
Only active routes can be redistributed. To verify route state, use the display ip routing-table
protocol command.
To configure IS-IS route redistribution from other routing protocols:
Step
Enter system view.
1.
Enter IS-IS view.
2.
Redistribute routes
3.
from another routing
protocol.
Command
system-view
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
summary ip-address { mask | mask-length }
[ avoid-feedback | generate_null0_route |
[ level-1 | level-1-2 | level-2 | tag tag ] *
Command
system-view
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
default-route-advertise [ route-policy
route-policy-name | [ level-1 | level-1-2 |
level-2 ] ] *
Command
system-view
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
import-route protocol [ process-id |
all-processes | allow-ibgp ] [ cost cost |
cost-type { external | internal } | [ level-1
| level-1-2 | level-2 ] | route-policy
route-policy-name | tag tag ] *
130
Remarks
N/A
N/A
No route summarization is
configured by default.
Remarks
N/A
N/A
By default, the function is
disabled.
Remarks
N/A
N/A
No route is redistributed by
default.
If no level is specified, routes are
redistributed into the Level-2
routing table by default.