Bgp Link-State - Cisco NCS 5500 Series Configuration Manual

Implementing BGP
This example shows how to configure BGP Accept Own on a PE router.
router bgp 100
neighbor 45.1.1.1
remote-as 100
update-source Loopback0
address-family vpnv4 unicast
!
address-family vpnv6 unicast
!
!
This example shows an InterAS-RR configuration for BGP Accept Own.
router bgp 100
neighbor 45.1.1.1
remote-as 100
update-source Loopback0
address-family vpnv4 unicast
route-policy rt_stitch1 in
route-reflector-client
route-policy add_bgp_ao out
!
address-family vpnv6 unicast
route-policy rt_stitch1 in
route-reflector-client
route-policy add_bgp_ao out
!
!
extcommunity-set rt cs_100:1
100:1
end-set
!
extcommunity-set rt cs_1001:1
1001:1
end-set
!
route-policy rt_stitch1
if extcommunity rt matches-any cs_100:1 then
endif
end-policy
!
route-policy add_bgp_ao
set community (accept-own) additive
end-policy
!

BGP Link-State

BGP Link-State (LS) is an Address Family Identifier (AFI) and Sub-address Family Identifier (SAFI) defined
to carry interior gateway protocol (IGP) link-state database through BGP. BGP LS delivers network topology
information to topology servers and Application Layer Traffic Optimization (ALTO) servers. BGP LS allows
policy-based control to aggregation, information-hiding, and abstraction. BGP LS supports IS-IS and OSPFv2.
Note IGPs do not use BGP LS data from remote peers. BGP does not download the received BGP LS data to
any other component on the router.
route-policy pass-all in
accept-own
route-policy drop_111.x.x.x out
route-policy pass-all in
accept-own
route-policy drop_111.x.x.x out
set extcommunity rt cs_1000:1 additive
BGP Configuration Guide for Cisco NCS 5500 Series Routers, IOS XR Release 6.2.x
BGP Link-State
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