Users Guide

● Route-maps use commands to decide what to do with traffic. To remove the match criteria in a route-map, use the no
match command.
● In a BGP route-map, if you repeat the same match statements; for example, a match metric, with different values in the
same sequence number, only the last match and set values are taken into account.
Configure match metric
OS10(config)# route-map hello
OS10(conf-route-map)# match metric 20
View route-map
OS10(conf-route-map)# do show route-map
route-map hello, permit, sequence 10
Match clauses:
metric 20
Change match
OS10(conf-route-map)# match metric 30
View updated route-map
OS10(conf-route-map)# do show route-map
route-map hello, permit, sequence 10
Match clauses:
metric 30
To filter the routes for redistribution, combine route-maps and IP prefix lists. The following table explains the action performed
for multiple match commands under a single route-map.
Table 80. Multiple match commands under a single route-map
Route-map
clause
Prefix list Incoming
Route
Action
permit permit
MATCH The route is permitted.
permit
NO MATCH Continue with next route-map clause.
deny
MATCH Continue with next route-map clause.
deny
NO MATCH Continue with next route-map clause.
deny permit
MATCH The route is denied.
permit
NO MATCH Continue with next route-map clause.
deny
MATCH Continue with next route-map clause.
deny
NO MATCH Continue with next route-map clause.
View both IP prefix-list and route-map configuration
OS10(conf-router-bgp-neighbor-af)# do show ip prefix-list
ip prefix-list p1:
seq 1 deny 10.1.1.0/24
seq 10 permit 0.0.0.0/0 le 32
ip prefix-list p2:
seq 1 permit 10.1.1.0/24
seq 10 permit 0.0.0.0/0 le 32
View route-map configuration
OS10(conf-router-bgp-neighbor-af)# do show route-map
route-map test1, deny, sequence 10
Match clauses:
ip address prefix-list p1
Set clauses:
route-map test2, permit, sequence 10
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Access Control Lists