[j-nsp] Mixing v4/v6 neighbors in BGP groups

Rob Foehl rwf at loonybin.net
Fri Jun 29 11:01:26 EDT 2018

Wondering aloud a bit...  I've seen plenty of cases where wedging parallel 
v4/v6 sessions into the same BGP group and letting the router sort out 
which AFI it's supposed to be using on each session works fine, and nearly 
as many where configuring anything family-specific starts to get ugly 
without splitting them into separate v4/v6 groups.  Are there any 
particularly compelling reasons to prefer one over the other?

I can think of a bunch of reasons for and against on both sides, and 
several ways to handle it with apply-groups or commit scripts.  Curious 
what others are doing here.



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