I have a further question: Can the PMTU of the smallest path of an association shrink between the transmission of a bundled packet and its retransmission forcing the sender to retransmit the various chunks of a message in more messages?
i.e. : Can I just track the highest TSN in a packet and look for its ack, or should I track every data chunk of each packet separatelly? Thanks Again, Luis On 2/13/07, Michael Tuexen <[EMAIL PROTECTED]> wrote: > Hi Luis, > > see my comments in-line. > > Best regards > Michael > > On Feb 13, 2007, at 2:14 PM, Luis Ontanon wrote: > > > I need to implement the identification of retransmitted packets and > > calculation of RTT to the sctp dissector. > > > > - Is someone already working on this? > I recently committed code for SCTP reassembly. Please have a look at it. > It should be easy to add retransmission detection to it. Just look for > the TSN of the DATA chunks. The (half associations) are detected by > the port numbers and the V-tag. > > - other than RFC 2960 (sec. 6.3) what other rfcs I must read in order > > to implement these? > Should be OK. > > - are there any caveats I must be aware before starting this venture? > For RTT detection you have to "connect" both directions of the > association. > Since you can not really use the source/destination address you have to > use a heuristic to combine both half directions. > > Please let me know if you have further questions. > > > > Thanks, > > > > Luis > > > > -- > > This information is top security. When you have read it, destroy > > yourself. > > -- Marshall McLuhan > > _______________________________________________ > > Wireshark-dev mailing list > > [email protected] > > http://www.wireshark.org/mailman/listinfo/wireshark-dev > > _______________________________________________ > Wireshark-dev mailing list > [email protected] > http://www.wireshark.org/mailman/listinfo/wireshark-dev > -- This information is top security. When you have read it, destroy yourself. -- Marshall McLuhan _______________________________________________ Wireshark-dev mailing list [email protected] http://www.wireshark.org/mailman/listinfo/wireshark-dev
