BGP neighbors

Unanswered Question
Oct 3rd, 2010
User Badges:

Hi,


I was asked this question during interview. I would like to verify whether my answer was correct.


Q: If 2 BGP routers are not directly connected, will they become neighbors?

A: As long as they can reach each other through IGP, they can become neighbors.

    EBGP has default TTL 1, so this command should be configured on both BGP routers to overwrite the default TTL setting:

   
     neighbor X.X.X.X ebgp-multihop num-hops-away


thx,

JIngyi

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Loading.
Mahesh Gohil Sun, 10/03/2010 - 22:20
User Badges:
  • Silver, 250 points or more

Hi JIngyi


You are right ...ebgp-multihop is required to have peering between non directly connected neighbors.


In addition to that if you want to peer with loopback you also need update-source command along with e-bgp multihop


regards

mahesh

Actions

This Discussion

Related Content