[dccp] userguide status

[Naomichi Nonaka <nonaka@sdl.hitachi.co.jp>]

Hi all,

Are there any plan to update user-guide draft in next IETF?

I'm planning to implement dccp and wondering how to design
application API about congestion control.

I plan to use TFRC ccid to control data transfer rate.

There are two issues.
1) Congestion notification
How to notify AP to change transfer rate ?
AP should poll rate by (maybe) getsockopt ?
Or some callback procedure should be implemented ?

2) Packet identification
Our AP want to know which packet is derivered.
Ack Vector feature exists in dccp spec. But dccp
sequence number is meaningless for AP.
Of cource, AP puts it's own seqence number to AP's
header area. But there is no way to map dccp sequence
number to AP seqeunce number.

Do you think these should be discussed in this WG ?
Or, do you think these are out of scope ?

Naomichi



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