tcpdump mailing list archives

Re: RFC: DLT for "application TCP stream capture"


From: Michael Tuexen <Michael.Tuexen () lurchi franken de>
Date: Wed, 14 Jan 2015 21:10:19 +0100


On 14 Jan 2015, at 18:19, Denis Ovsienko <denis () ovsienko info> wrote:

Eventually, we'll be using this format to debug multi-path TCP, in which case 
the IP addresses (and maybe even the IP4/IP6-ness of it) might change. 

Also there exists SCTP, which implements the concept of variable (0..65535) number of "streams" for each direction of 
an "association" between a pair of sockets (in TCP these two things are the same), so a stream_id field in the 
encoding (0 for TCP and UDP) could be handy for SCTP payload representation.
and don't forget the PPID, the ordered/unordered flag, and the TSN/SSN. All this is exposed to the application...

Best regards
Michael

-- 
   Denis Ovsienko

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