[AVTCORE] Comments on draft-ietf-avtcore-rfc5764-mux-fixes-03.txt

[Magnus Westerlund <[e-mail]>]

Hi,

I have looked at the updated draft. I think you have resolved my 
previous comments, thank you. However, I still have some comments.

1. Split the introduction chapter. The introduction is much more than an 
introduction. I think the sub-sections likely belong in a new section 
after the introduction that discusses the issues and intended changes in 
depth. However, they are not introduction.

2. Section 1.3:

I still are uncertain if TURN channels needs the whole range 64 to 79. I 
think the text should be explicit about how many turn channels this 
support. So according to my math the proposed change is from 64-127 to 
64-79, i.e. the available number of channels has been reduced from 16384 
to 4096. That still a large number of channels.

What number of channels are currently used by implementations? I expect 
that to be single digit, or am I missing some use cases?

3.  Section 1.4:

I still don't see how what is written in this section results in any 
improvement. You authors have assumptions of how this needs to be 
implemented that isn't written down. Looking on this problem of 
demultiplexing I would build a table driven solution based on the 
ranges, where the packet is sent to the relevant protocol based on the 
table-lookup. If that protocol don't use that value, that will be the 
end of the road for that packet as invalid, rather than giving it to any 
other protocol. I get the impression that you want one to send the 
packet for testing by the protocols one after each other according to 
the order the protocols are listed. I still don't see that 
implementations will do that.

Cheers

Magnus Westerlund

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