Advertising A Default Route; Configuring Is-Is Route Redistribution; Configuring Is-Is Route Filtering - HP MSR Series Configuration Manual

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
1. Enter system view.
2. Enter IS-IS view.
3. Advertise a default
route.

Configuring IS-IS route redistribution

Redistributing large numbers of routes on a device might 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
1. Enter system view.
2. Enter IS-IS view.
3. Redistribute routes
from another routing
protocol.
4. Configure the
maximum number of
redistributed Level
1/Level 2 IPv4
routes.

Configuring IS-IS route filtering

You can reference a configured ACL, IP prefix list, or routing policy to filter routes calculated from the
received LSPs and the routes redistributed from other routing protocols.
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 ] *
import-route limit number
132
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.
Optional.