ECS4660-28F_Management Guide-R03

C HAPTER 51 | IP Routing Commands
Policy-based Routing for BGP
– 1916 –
EXAMPLE
Console(config)#route-map RD permit 16
Console(config-route-map)#match peer 192.168.0.99
Console(config-route-map)#set origin egp
Console(config-route-map)#
set originator-id This command sets the IP address of the routing message’s originator. Use
the no form to remove this entry from a route map.
SYNTAX
set originator-id ip-address
no set originator-id
ip-address – An IPv4 address of the route source, expressed in
dotted decimal notation.
COMMAND MODE
Route Map
COMMAND USAGE
This attribute is commonly used for loop prevention by rejecting updates
that contain the receiving router’s own router-ID in the originator-ID
attribute.
EXAMPLE
Console(config)#route-map RD permit 17
Console(config-route-map)#match peer 192.168.0.99
Console(config-route-map)#set originator-id 192.168.0.254
Console(config-route-map)#
set pathlimit ttl This command sets the maximum AS path length for propagation of more
specific prefixes in routing messages. Use the no form to remove this entry
from a route map.
SYNTAX
set pathlimit ttl ttl-value
no set pathlimit ttl
ttl-value – Maximum number of router hops allowed in an AS path.
(Range: 1-255)
COMMAND MODE
Route Map
COMMAND USAGE
Due to the dynamic changes in connections for network paths, it is not
advisable to restrict the number of router hops for any path. However, if