3Com S7906E Command Reference Manual page 735

View
OSPF view
Default Level
2: System level
Parameters
ip-address: IP address of the summary route in dotted decimal notation.
mask: Summary route mask, in dotted decimal notation.
mask-length: Length of summary route mask, in the range 0 to 32 bits.
not-advertise: Disables advertising the summary route. If the keyword is not specified, the route is
advertised.
tag tag: Specifies a tag value for the summary route, used by a route policy to control summary route
advertisement, in the range 0 to 4294967295. The default is 1.
cost cost: Specifies the cost of the summary route, in the range 1 to 16777214. For Type-1 external
routes, the cost defaults to the largest cost among routes that are summarized. For Type-2 external
routes, the cost defaults to the largest cost among routes that are summarized plus 1.
Description
Use the asbr-summary command to configure a summary route.
Use the undo asbr-summary command to remove a summary route.
No ASBR route summarization is configured by default.
With the asbr-summary command configured on an ASBR, it summarizes redistributed routes that fall
into the specified address range into a single route. If the ASBR resides in an NSSA area, it advertises
the summary route in a Type-7 LSA into the area.
With the asbr-summary command configured on an NSSA ABR, it summarizes routes described by
Type-5 LSAs translated from Type-7 LSAs into a single route and advertises the summary route to other
areas. This command does not take effect on non NSSA ABRs.
With the undo asbr-summary command used, summarized routes will be advertised.
Related command: display ospf asbr-summary.
Examples
# Summarize redistributed routes into a single route, specifying a tag value of 2 and a cost of 100 for the
summary route.
<Sysname> system-view
[Sysname] ip route-static 10.2.1.0 24 null 0
[Sysname] ip route-static 10.2.2.0 24 null 0
[Sysname] ospf 100
[Sysname-ospf-100] import-route static
[Sysname-ospf-100] asbr-summary 10.2.0.0 255.255.0.0 tag 2 cost 100
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