Operation Manual – IPv4 Routing
H3C S3610&S5510 Series Ethernet Switches
Chapter 4 IS-IS Configuration
4-24
Follow these steps to configure route summarization:
To do…
Use the command...
Remarks
Enter system view
system-view
—
Enter IS-IS view
isis
[
process-id
] [
vpn-instance
vpn-instance-name
]
––
Configure IS-IS route
summarization
summary ip-address
{
mask
|
mask-length
} [
avoid-feedback
|
generate_null0_route
|
tag tag
|
[
level-1
|
level-1-2
|
level-2
] ] *
Required
Not configured by
default
Note:
The cost of the summary route is the lowest cost among those summarized routes.
4.4.6 Advertising a Default Route
Follow these steps to advertise a default route:
To do…
Use the command…
Remarks
Enter system view
system-view
––
Enter IS-IS view
isis
[
process-id
] [
vpn-instance
vpn-instance-name
]
—
Advertise a default
route
default-route-advertise
[
route-policy route-policy-name
]
[
level-1
|
level-2
|
level-1-2
]
Optional
Level-2 router
generates a default
route by default.
Note:
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.
