ECS4660-28F_Management Guide-R03

C HAPTER 51 | IP Routing Commands
Policy-based Routing for BGP
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COMMAND MODE
Route Map
COMMAND USAGE
◆ Lower metric values indicate a higher priority.
◆ This command can modify the current metric for a route using the “+”
or “-” keywords.
◆ The metric applies to external routers in the inter-autonomous system.
To specify the metric for the local AS, use the set local-preference
command.
◆ This path metric is normally only compared with neighbors in the local
AS. To extend the comparison to paths advertised from neighbors in
different autonomous systems, use the bgp always-compare-med
command.
EXAMPLE
Console(config)#route-map RD permit 16
Console(config-route-map)#match peer 192.168.0.99
Console(config-route-map)#set metric +1
Console(config-route-map)#
set origin This command sets the BGP origin code for the routing protocol which
generated this message. Use the no form to remove this entry from a
route map.
SYNTAX
set origin {egp | igp | incomplete}
no set origin
egp – Exterior gateway protocols.
igp – Interior gateway protocols.
incomplete – Route origin unknown.
DEFAULT SETTING
As indicated in main IP routing table
COMMAND MODE
Route Map
COMMAND USAGE
EGP is an inter-domain routing protocol which has been superceded by
BGP. IGP indicates any intra-domain routing protocol such as RIP or OSPF.