[179765] in North American Network Operators' Group
Re: link avoidance
daemon@ATHENA.MIT.EDU (Christopher Morrow)
Wed May 6 20:35:49 2015
X-Original-To: nanog@nanog.org
In-Reply-To: <m2lhh18gdi.wl%randy@psg.com>
Date: Wed, 6 May 2015 20:35:46 -0400
From: Christopher Morrow <morrowc.lists@gmail.com>
To: Randy Bush <randy@psg.com>
Cc: North American Network Operators' Group <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
On Wed, May 6, 2015 at 6:56 PM, Randy Bush <randy@psg.com> wrote:
> a fellow researcher wants
>
> > to make the case that in some scenarios it is very important for a
> > network operator to be able to specify that traffic should *not*
> > traverse a certain switch/link/group of switches/group of links
> > (that's true right?). Could you give some examples? Perhaps point
> > me to relevant references?
>
> if so, why? security? congestion? other? but is it common? and, if
'Level3 Maintenance for Fiber path X on date Y'
where 'fiber path x' is one of your paths from A to B. Gracefully move
traffic (isis/ospf/rip/etc metric jackery), return traffic when the
crisis is past.
> so, how do you do it?
>
> randy
