Chapter 50
| IP Routing Commands
Policy-based Routing for BGP
– 1164 –
Example
Console(config)#route-map RD permit 8
Console(config-route-map)#match pathlimit as 5
Console(config-route-map)#on match goto 20
Console(config-route-map)#
set aggregator as This command assigns an AS number and IP address to the aggregator attribute of
a route. Use the no form to remove this entry from a route map.
Syntax
set aggregator as as-number ip-address
no set aggregator as [as-number ip-address]
as-number – Autonomous system number. (Range: 1-4294967295)
ip-address – IP address of aggregator.
Command Mode
Route Map
Command Usage
Aggregate routes advertised to a neighbor contain an aggregator attribute. This
attribute contains an AS number and IP address. The AS number is the creator's AS
number (or confed ID in a confederation) and an IP address which is the creator’s
router-id. The set aggregator as command can be used to overwrite the
aggregator attribute in routes created locally with the aggregate-address
command, or in routes learned from a neighbor which already carry an aggregator
attribute, or to add a new aggregator attribute to a route which has no aggregator
attribute.
Example
Console(config)#route-map RD permit 8
Console(config-route-map)#match pathlimit as 5
Console(config-route-map)#set aggregator 1 192.168.0.0
Console(config-route-map)#
set as-path This command modifies the AS path by prepending or excluding an AS number.
Use the no form to remove this entry from a route map.
Syntax
set as-path {exclude | prepend} as-number...
no set as-path {exclude | prepend}
exclude – Removes one or more autonomous system numbers from the AS
path of the route that is matched.
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