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Examples
# Disable IS-IS notification sending.
<Sysname> system-view
[Sysname] undo snmp-agent trap enable isis
summary (IS-IS view)
Use summary to configure a summary route.
Use undo summary to remove a summary route.
Syntax
summary ip-address { mask-length | mask } [ avoid-feedback | generate_null0_route | [ level-1 |
level-1-2 | level-2 ] | tag tag ] *
undo summary ip-address { mask-length | mask } [ level-1 | level-1-2 | level-2 ]
Default
No summarization is configured.
Views
IS-IS view
Predefined user roles
network-admin
Parameters
ip-address: Specifies the destination IP address of the summary route.
mask-length: Specifies the mask length of the summary route, in the range of 0 to 32.
mask: Specifies the mask of the destination IP address, in dotted decimal notation.
avoid-feedback: Avoids learning summary routes by route calculation.
generate_null0_route: Generates the Null 0 route to avoid routing loops.
level-1: Summarizes 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 level-2 routes are summarized.
If no topology is specified, routes for the base topology are summarized.
You can summarize multiple contiguous networks into a single network to reduce the size of the routing
table, as well as the size of LSP and LSDB generated by the router. You can 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 generated from local LSPs.
Examples
# Configure a summary route of 202.0.0.0/8.
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