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Re: [Bier] Comment on BIER-TE

Greg Mirsky <gregimirsky@gmail.com> Wed, 09 August 2017 19:29 UTC

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From: Greg Mirsky <gregimirsky@gmail.com>
Date: Wed, 09 Aug 2017 12:29:15 -0700
Message-ID: <CA+RyBmWyT47ofQewbOe2kkyCMi5F7TnYw+MN6BOfhDRsh_KEkA@mail.gmail.com>
To: IJsbrand Wijnands <ice@cisco.com>
Cc: Toerless Eckert <tte@cs.fau.de>, bier@ietf.org, hu.fangwei@zte.com.cn
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Subject: Re: [Bier] Comment on BIER-TE
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Hi Toerless, Ice, et. al,
I think that we arrived to realization that it may be helpful first to
formulate the problem, requirements towards TE at BIER layer, if any.

Ice,
we may have slightly different terminology in using 'topology', but you've
captured my message - traffic engineering, as well as protection, may be
better achieved in BIER's underlay, i.e. transport network. And segment
routing with MPLS dataplane may fit the bill. Whether one uses distributed
control plane or central controller, e.g. PCE - secondary issue.

Regards,
Greg

On Wed, Aug 9, 2017 at 11:51 AM, IJsbrand Wijnands <ice@cisco.com> wrote:

> Toerless,
>
> > Now if you want to use traffic-engineering ("path engineering")
> > to do steiner trees, IGP topologies will not help. If you want
> > to do N-path load-splitting, you need N topologies, etc. pp.
> > "Your mileage will vary" ;-)
>
> https://en.wikipedia.org/wiki/Wikipedia:Solutions_looking_for_a_problem
>
> :-)
>
> Thx,
>
> Ice.
>
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