4-3
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.
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.
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.
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, an ASBR 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, an NSSA ABR 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.
If the
undo asbr-summary
command is used, summarized routes will be advertised.
Related command:
display ospf asbr-summary
.
Examples
# Summarize redistributed static routes into a single route, and specify 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
authentication-mode
Syntax
authentication-mode
{
md5
|
simple
}
undo authentication-mode
View
OSPF area view
Default Level
2: System level
