Cisco NCS 5500 Series Configuration Manual page 34

BGP Additional Paths
Defines the route policy and enters route-policy configuration mode.
Step 3 if conditional-expression then action-statement else
Example:
RP/0/RP0/CPU0:router (config-rpl)#if community matches-any (*) then
set path-selection all advertise
else
Decides the actions and dispositions for the given route.
Step 4
pass endif
Example:
RP/0/RP0/CPU0:router(config-rpl-else)#pass
RP/0/RP0/CPU0:router(config-rpl-else)#endif
Passes the route for processing and ends the if statement.
Step 5
end-policy
Example:
RP/0/RP0/CPU0:router(config-rpl)#end-policy
Ends the route policy definition of the route policy and exits route-policy configuration mode.
Step 6
router bgp as-number
Example:
RP/0/RP0/CPU0:router(config)#router bgp 100
Specifies the autonomous system number and enters the BGP configuration mode, allowing you to configure the BGP
routing process.
Step 7 address-family {ipv4 {unicast } | ipv6 {unicast | l2vpn vpls-vpws | vpnv4 unicast | vpnv6 unicast }
Example:
RP/0/RP0/CPU0:router(config-bgp)#address-family ipv4 unicast
Specifies the address family and enters address family configuration submode.
Step 8
additional-paths receive
Example:
RP/0/RP0/CPU0:router(config-bgp-af)#additional-paths receive
Configures receive capability of multiple paths for a prefix to the capable peers.
Step 9 additional-paths send
Example:
RP/0/RP0/CPU0:router(config-bgp-af)#additional-paths send
Configures send capability of multiple paths for a prefix to the capable peers .
Step 10 additional-paths selection route-policy route-policy-name
Example:
RP/0/RP0/CPU0:router(config-bgp-af)#additional-paths selection route-policy add_path_policy
Configures additional paths selection capability for a prefix.
BGP Configuration Guide for Cisco NCS 5500 Series Routers, IOS XR Release 6.2.x
24
Implementing BGP