Configuring The Maximum Number Of Ecmp Routes; Configuring Is-Is Route Summarization; Advertising A Default Route - HP 5500 EI series Configuration Manual

To configure a preference for IS-IS:
Step
1. Enter system view.
2. Enter IS-IS view.
3. Configure a preference for
IS-IS.

Configuring the maximum number of ECMP routes

Perform this task to implement load sharing over ECMP routes.
To configure the maximum number of ECMP routes:
Step
1. Enter system view.
2. Enter IS-IS view.
3. Specify the maximum number
of ECMP routes.

Configuring IS-IS route summarization

Perform this task to summarize specific routes, including IS-IS routes and redistributed routes, into a single
route. Route summarization can reduce the routing table size and the LSDB scale.
Route summarization applies only to locally generated LSPs. The cost of the summary route is the lowest
one among the costs of the more-specific routes.
To configure route summarization:
Step
1. Enter system view.
2. Enter IS-IS view.
3. Configure IS-IS route
summarization.

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.
Command
system-view
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
preference { preference | route-policy
route-policy-name } *
Command
system-view
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
maximum load-balancing number
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 ] *
134
Remarks
N/A
N/A
The default setting is
15.
Remarks
N/A
N/A
The default maximum
number depends on the
device model.
Remarks
N/A
N/A
By default, route summarization is
not configured.