H3C Technologies H3C S5560 Series Switches - Manual (Page 161)

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Step Command Remarks
3. Configure IS-IS route
summarization.
summary ip-address { mask-length | mask }
[ avoid-feedback | generate_null0_route |
[ level-1 | level-1-2 | level-2 ] | tag tag ] *
By default, route summarization is
not configured.
Advertising a default route
IS-IS cannot redistribute a default route to its neighbors. This task enables IS-IS to advertise a default route
of 0.0.0.0/0 in an LSP to the same-level neighbors. Upon receiving the default route, the neighbors add
it into their routing table.
To advertise a default route:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter IS-IS view.
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
N/A
3. Advertise a default
route.
default-route-advertise [ [ level-1 | level-1-2
| level-2 ] | route-policy route-policy-name ]
*
By default, IS-IS does not advertise
a default route.
Configuring IS-IS route redistribution
Perform this task to redistribute routes from other routing protocols into IS-IS. You can specify a cost for
redistributed routes and specify the maximum number of redistributed routes.
To configure IS-IS route redistribution from other routing protocols:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter IS-IS view.
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
N/A
3. Redistribute routes from
other routing protocols
or other IS-IS processes.
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 ] *
By default, no route is redistributed.
By default, if no level is specified, this
command redistributes routes into the
Level-2 routing table.
This command redistributes only
active routes. To display active
routes, use the display ip
routing-table protocol command.
4. (Optional.) Configure
the maximum number of
redistributed Level
1/Level 2 IPv4 routes.
import-route limit number
By default, the maximum number of
redistributed Level 1/Level 2 IPv4
routes is not configured.