Re: [Isis-wg] Accept as WG doc?

Hi folks,

This draft seems to answer correctly the requirement for using IS-IS as a layer-2 routing protocol. 

I have though one clarification question to the authors regarding the MAC-RI TLV (in 2.1) which is as a sub-TLV but also defined as directly carried in a L1 LSP. I think it is a "regular" TLV, right?
Furthermore, I was asking mysef why did you define some "root" TLVs. IINM, lots of TLVs defined in this draft are extending IS-IS to support multicast routing as it was made in OSPF with MOSPF and its type-6 LSA. And if I am still right, there is no definition in MOSPF of such "root" information to flood. Therefore I was wondering why did you choose to define such TLVs.

Finally, I have one question related to Hannes concerns. As an ISP, I really do care about convergence times. You state in §3 that the reason for defining the Multicast Group PDU was because we shall expect a much higher frequency of join/leave changes than of topology changes. I totally agree on that and I do understand this definition as a way to isolate topological LSP convergence from a multicast LSP convergence. But as you did not define any new mechanisms to treat this new LSP type I assume that both topological and multicast LSP types will use the same timers regarding SPF calculation (wait and hold-timers) and transmission intervals. So at the end I do not see how you will be able to make the topological convergence isolated from the multicast one.

Thanks,

--
Greg

> -----Message d'origine-----
> De : isis-wg-bounces@ietf.org 
> [mailto:isis-wg-bounces@ietf.org] De la part de David Ward
> Envoyé : mardi 3 février 2009 22:54
> À : isis-wg@ietf.org
> Cc : Christian Hopps
> Objet : [Isis-wg] Accept as WG doc?
> 
> All -
> 
> Please let us know if you believe this document should be 
> accepted as a WG document:
> 
> http://tools.ietf.org/html/draft-ward-l2isis-04
> 
> Thanks
> 
> Chris, Dave
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