Re: Questions regarding draft-ietf-ccamp-gmpls-mln-reqs-01

[Jeroen van der Ham <vdham@science.uva.nl>]

Hello Dimitri,

Thank you for your answers, it made some things much clearer.
I do have some additional comments though, find them inline.

Dimitri.Papadimitriou@alcatel.be wrote:
> - I believe that the draft often uses the term ISCD often where ISC is
> meant. If I understand it correctly, different ISCDs can be announced
> for a given interface at different times, for example because the
> available bandwidth is changing.
>
>
> [dp] ISC refers to the switching capability, while with the inclusion of 
> Max LSP Bw the ISCD describes capacity associated to one or more network 
> layers

Yes, I understand that. But given your statement about ISCDs below, I do 
not see how you can use the term ISCD at the end of section 1 where you 
categorise MLNs based on the ISCDs.
In particular, I don't see how an LSR may support just one ISCD. Since 
the available bandwidth will vary over time, it can not just support one 
single ISCD.


> - I find the example in section 4.2.1 to be very briefly explained, it
> could do with a better explanation of what is going on.
>
> One improvement would be to state explicitly which three(!) ways are
> possible for setting up an PSC LSP across this device:
> 1) Terminating on interface #b
> 2) Terminating on interface #a
> 3) Going through the device towards a neighboring PSC node.
>
>
> [dp] it is two from the node perspective itself (TDM->PSC) or PSC directly

Okay, but the example really should state the two ways. Just saying that 
there are two ways may work in a textbook, but here you are describing 
something completely new.

Anyway, I'm looking forward to the next version.

Jeroen.