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[Steve Dodd via NANOG <nanog () nanog org>]

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> From: Steve Dodd <steve.dodd () sungardas com>
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> Date: Thu, 07 May 2015 09:02:16 -0600
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> On 5/6/15, 4:56 PM, "Randy Bush" <randy () psg com> wrote:
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> > 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?
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> > if so, why? security?  congestion?  other?  but is it common?  and, if
> > so, how do you do it?
> >
> > randy
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> In the wireless backhaul space I¹ve seen carriers that would prefer a
> circuit to go down rather than take the long path on a ring between tower
> and switching center. I assume they are concerned with some sort of
> latency requirement. We used RSVP-TE with link coloring as the solution.
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> -Steve
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