Junos
Junos

EBGP multihop

‎11-22-2017 09:24 AM

Hello,

 

I have following topology and i wanted to setup VPLS connection over IRB interface and EBGP.

 

R1 (AS 100, irb.10(vpls)) <---->R2 (AS 200)<------> Core Network <------> R3 (AS 300, irb.10 (vpls))
I configure vpls between R1 and R3 and it came back up but my ebgp is not coming up between R1 and R3. I have configured basic EBGP between R1 and R3. Should i go for multihop ebgp configuration for bgp to come up between R1 and R3 ?

Please advise if there is any other soultion ?

 

Thanks!!

2 REPLIES 2
Junos

Re: EBGP multihop

‎11-22-2017 06:23 PM
Being EBGP ttl value will be 1. Hence, you need to configure multihop with value of 2.

*************************************
HTH.
Accept this as solution if it resolved your issue.
Kudos would be appreciated too.
Junos

Re: EBGP multihop

‎12-27-2017 11:09 AM

Hi,

 

When eBGP peers are not directly connected over physical interface you need to use the eBGP multihop

You can refer to below tech doc for more details.

 

Understanding EBGP Multihop

 

[KUDOS PLEASE! If you think I earned it!

If this solution worked for you please flag my post as an "Accepted Solution" so others can benefit..]