[isp-bgp] RE: EBGP and loopbacks

[Chopra Puneet <Puneet.Chopra@...>]

Hi

Normally, you make EBGP on loopbacks, when you have multiple links to the
same service provider, and need load-balancing. But still in that case, you
would have to use the Physical connected ports as the next-hop, for
maintaining the TCP connectivity, as the loopbacks are always 1-hop away.
You cannot make multiple EBGP peering on the physical interface, so you must
use loopback, for multiple links to the SAME provider.

If you have a single EBGP link, then you could go in for the Physical ports
as EBGP interfaces. 

Hope this helps.

Regards

Puneet Chopra

-----Original Message-----
From: Tulip Rasputin [mailto:tulip_rasputin@...] 
Sent: Thursday, May 13, 2004 4:50 PM
To: isp-bgp@isp-bgp.com
Subject: [isp-bgp] EBGP and loopbacks

Folks,

Does anyone here run EBGP on loopbacks?  I have this customer who wants to
run EBGP using
loopbacks. Dont we always use loopbacks with only the IBGP peering?

Regards,
Rasputin

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