[84967] in North American Network Operators' Group
RE: [eng/rtg] changing loopbacks
daemon@ATHENA.MIT.EDU (Neil J. McRae)
Thu Sep 29 15:23:38 2005
From: "Neil J. McRae" <neil@DOMINO.ORG>
To: "'Randy Bush'" <randy@psg.com>, "'David Sinn'" <dsinn@dsinn.com>
Cc: <nanog@nanog.org>
Date: Thu, 29 Sep 2005 20:20:14 +0100
In-Reply-To: <17212.13310.379534.929756@roam.psg.com>
Errors-To: owner-nanog@merit.edu
>
> this is my fear. which is why i asked. pushing out new
> configs (the canonic config is on disk, not the router [0])
> and setting a reload of a bunch of routers at time t0 does
> not give me warm fuzzies about what the world will be like at
> time tn (n > 0).
>
> but i may have to take that path. i am hoping folk will give
> me a magic pill. after all, any group with such a deep
> understanding of how to deal with the world's social ills
> must know a bit of router magic <smirk>.
>
I think with OSPF this will be very difficult to
do without rebooting (or as long an outage as rebooting).
We migrated from OSPF to IS-IS and changed some loopbacks a
while ago, the IS-IS change was totally transparent - no issue,
but on the change of loopback caused a lot of BGP churn.
It was easier to change it and reboot and do
it over a period of time in small network triangles.
I always thought that the billing system was the database
of record ;-)
Neil.