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Re: [mpls] comments on draft-kompella-mpls-special-purpose-labels-02

Jeff Wheeler <jsw@inconcepts.biz> Wed, 03 April 2013 06:38 UTC

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Date: Wed, 03 Apr 2013 02:38:03 -0400
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From: Jeff Wheeler <jsw@inconcepts.biz>
To: Loa Andersson <loa@pi.nu>
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Subject: Re: [mpls] comments on draft-kompella-mpls-special-purpose-labels-02
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On Wed, Apr 3, 2013 at 1:59 AM, Loa Andersson <loa@pi.nu> wrote:
> replacing 0..15 with 0..N gives you a red flag day. All LSRs in
> your network needs to be updated a the same time. And if you have
> MPLS inter-connectivity between your mpls network and someone
> other networkz, you have to update all LSRs in all networks at
> the same time. Time is no remedy, you can do it now, in a year or
> in ten years.

That is an easily solved control-plane problem.

An easily solved control-plane problem is greatly preferable to the
problem you are creating, which increases the heat/power/density
challenges of building future LSRs, and makes existing ones unable to
implement new features due to the deeper label stack.

Was there no consideration of what problems are caused by a deeper
label stack?  That seems to be the case.

-- 
Jeff S Wheeler <jsw@inconcepts.biz>
Sr Network Operator  /  Innovative Network Concepts

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