[isp-bgp] Re: EBGP and loopbacks

[Jennifer Rexford <jrex@...>]

> Does anyone here run EBGP on loopbacks?  I have this customer who
> wants to run EBGP using loopbacks.

See the example and discussion in Sections 2.2 and 3.3 (and Figure 4) of

  http://www.research.att.com/~jrex/papers/provbgp02.pdf

for scenarios where running eBGP on loopbacks makes sense -- a 
eBGP neighbor with multiple access links between the same pair
of routers, or through some intermediate device like a firewall.

-- Jen






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