Matching based on interface
The match option has been added to the route-map command that distributes any routes that have their next hop out one of the
interfaces specied. This feature operates with the following conditions:
• The match interface option can only use the interface name (for example ethernet 1/1/2) and not the IP address as an
argument.
• The match interface option is only eective during redistribution and does not apply for other route map usage such as: bgp
outbound route update policy.
• The match interface option can be applied to other types of redistribution such as redistributing OSPF routes to BGP4, or
ltering out all OSPF routes that point to a specic interface.
To congure the match-interface option, use the following command.
device(config)# route-map test-route permit 99
device(config-routemap test-route)# match interface ethernet 1/1/1 ethernet 1/3/2
device(config-routemap test-route)# exit
Syntax: [no] match interface interface interface ...
The interface variable
species the interface that you want to use with the match interface command. Up to 5 interfaces of the following
types can be specied:
• ethernet unit/slot/port
• loopback loopback-number
• null0
• tunnel tunnel-ID
• ve ve-ID
Setting parameters in the routes
Use the following command to dene a set clause that prepends an AS number to the AS path on each route that matches the
corresponding match statement.
device(config-routemap GET_ONE)# set as-path prepend 65535
Syntax: [no] set [ as-path [ prepend as-num,as-num,... ] ] | [ automatic-tag ] | [ comm-list acl delete ] | [ community num : num | num |
additive | local-as | no-advertise | no-export ] | [ dampening [ half-life reuse suppress max-suppress-time ] ] [ ip next hop ip-addr ] [ ip
next-hop peer-address ] | [ local-preference num ] | [ metric [ + | - ] num | none ] | [ metric-type type-1 | type-2 ] | external [ metric-
type internal ] | [ next-hop ip-addr ] | [ origin igp | incomplete ] | [ tag ] | [ weight num ]
The as-path prependnum,num,... parameter adds the
specied AS numbers to the front of the AS-path list for the route. The range of
num values is 1 - 65535 for two-byte ASNs and 1 - 4294967295 if AS4s have been enabled.
The automatic-tag parameter calculates and sets an automatic tag value for the route.
NOTE
This parameter applies only to routes redistributed into OSPF.
The comm-list parameter deletes a community from the community attributes eld for a BGP4 route.
The community parameter sets the community attribute for the route to the number or well-known type you specify.
The dampening [half-life reuse suppress max-suppress-time ] parameter sets route dampening parameters for the route. The half-life
parameter species the number of minutes after which the route penalty becomes half its value. The reuse parameter species how low a
route penalty must become before the route becomes eligible for use again after being suppressed. The suppress parameter species
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