Hi Noel,

Thanks! Actually after reading your email and realizing that ELPs can also be 
EIDs I agree with the MPLS example, I feel that it is a good example of what 
LISP can be,

Albert

On Nov 3, 2012, at 9:22 AM, Noel Chiappa <[email protected]> wrote:

>> From: Albert Cabellos <[email protected]>
> 
> Hi, thanks for the comments; I'll reply in detail later, but one thing that
> caught my eye quickly:
> 
>> MPLS-> Although it is a good analogy, I don't think that MPLS is a good
>> example given that with LISP we can't stack labels.
> 
> ??? LISP does use 'stacked' encapsulations (e.g. for a mobile node moving to
> a LISP site)?
> 
> And the mapping output could be an MPLS header with a 'pre-loaded' label
> stack (that's how you do source routing in a label-based system - I'm not
> sure if the existing MPLS stuff uses that capability, but eventually in
> Nimrod [which was the place that came up with the idea of label stacks, see
> RFC-1753] we realized that was how to minimize state setup, by 'pre-loading'
> the flow stack at the time the packet is created).
> 
> So I'm not sure I understand this comment?
> 
> 
> In any case, I'm OK with using some other example - I just used MPLS because
> that's one that had been discussed, because there's a lot of MPLS-capable
> infrastructure already deployed. Did you have an alternative suggestion? I
> can't quickly come up with one that's as good as MPLS.
> 
>       Noel

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