F3726, F3211, F3174, R5135, R3816-HP Firewalls and UTM Devices Network Management Command Reference-6PW100

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[Sysname-isis-1] set-overload
summary (IS-IS view)
Use summary to configure a summary route.
Use undo summary to remove a summary route.
Syntax
summary ip-address { mask | mask-length } [ avoid-feedback | generate_null0_route | [ level-1 |
level-1-2 | level-2 ] | tag tag ] *
undo summary ip-address { mask | mask-length } [ level-1 | level-1-2 | level-2 ]
Default
No summarization is configured.
Views
IS-IS view
Default command level
2: System level
Parameters
ipv4-unicast topology-name: Specifies an IPv4 unicast topology. topology-name is a case-sensitive string
of 1 to 31 characters.
ip-address: Destination IP address of the summary route.
mask: Mask of the destination IP address, in dotted decimal format.
mask-length: Mask length, in the range of 0 to 32.
avoid-feedback: Avoids learning summary routes by route calculation.
generate_null0_route: Generate the Null 0 route to avoid routing loops.
level-1: Summarize only the routes redistributed to Level-1.
level-1-2: Summarizes the routes redistributed to both Level-1 and Level-2.
level-2: Summarizes only the routes redistributed to Level-2.
tag tag: Specifies a management tag, in the range of 1 to 4294967295.
Usage guidelines
If no level is specified, only the level-2 routes are summarized by default.
You can summarize multiple contiguous networks into a single network to reduce the size of the routing
table, as well as that of LSP and LSDB generated by the router. It is allowed to summarize native IS-IS
routes and redistributed routes. After summarization, the cost of the summary route is the smallest cost of
those summarized routes.
The router summarizes only routes in local LSPs.
Examples
# Configure a summary route of 202.0.0.0/8.
<Sysname> system-view
[Sysname] isis 1