Hi All
Just a quick question around ISP's and BGP VPNs etc
First, If I am one of many customers on an ISPs network, they will assign me into a VRF, I believe all my sites will be the same VRF.
Do all the PE routers peer with each other in the ISP network, or do they just peer with the core nodes etc?
Why is it beneficial to run MPBGP with MPLS? why do the 2 go hand in hand? Does the MPLS label stay the same no matter what VRF the traffic is from when traversing the backbone etc?
When peering with BGP, do you normally put the same neighbour in both the main bgp config at the start as well as under each address family if peering to the same peer
Also is there a way to see what community is being exported by bgp ?
router bgp 65000
bgp log-neighbor-changes
no bgp default ipv4-unicast
timers bgp 0 0
neighbor 10.0.0.2 remote-as 65000
neighbor 10.0.0.2 update-source Loopback0
!
address-family ipv4
exit-address-family
!
address-family vpnv4
neighbor 10.0.0.2 activate
neighbor 10.0.0.2 send-community both
exit-address-family
