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Re: [irs-discuss] IRS comments

Alia Atlas <akatlas@gmail.com> Wed, 15 August 2012 22:11 UTC

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Date: Wed, 15 Aug 2012 18:11:56 -0400
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From: Alia Atlas <akatlas@gmail.com>
To: robert@raszuk.net
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Cc: Olen Stokes <ostokes@extremenetworks.com>, Edward Crabbe <edc@google.com>, "David Lake (dlake)" <dlake@cisco.com>, "irs-discuss@ietf.org" <irs-discuss@ietf.org>
Subject: Re: [irs-discuss] IRS comments
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On Wed, Aug 15, 2012 at 3:50 PM, Robert Raszuk <robert@raszuk.net> wrote:
>
>>   It could just as easily describe a PCE.
>
>
> PCE could be a controller just talking to headends and asking them to signal
> LSP X with RSVP-TE or it could talk to all head, tail and via nodes and
> actually program the forwarding label entries.
>
> I am observing that IRS framework is more of the former case rather then the
> latter in general.
>
> However if this is the former then I am a bit not clear what value it is to
> deliver if we compare it with current statefull PCE efforts ;)

Other than providing a good means of learning more topology and
dynamic events and related state easily??  Feedback loops - and an
easy mechanism to, for instance, test a created LSP via OAM before
declaring the new one up?

Alia

> Best,
> R.
>
>
>
>

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