Re: M2PA: resynchronization of sequence numbers after P O

Arne,

The RFC does not preclude you from using a local timer
for any local reason, so the point is moot.

--brian

Arne van Wilgen wrote:                                               (Fri, 16 Nov 2007 13:29:47)
> 
>    Hello Brian,
> 
>    I  don't  agree.  SCTP may have many timers but there is just one type
>    (rfc 4960
>    6.3:  retransmission  timer T3-rtx) for data retransmission.  So for a
>    single
>    homed enpoint I expect there is just one timer for retransmission.
> 
>    The timer's duration depends on the IP network -- even if you specifiy
>    the
>    initial, max. and min. values for the timer.
> 
>    From  the  number  of  allowed retransmissions and the RTO.Max you can
>    derive the
>    maximum time it will take to detect COMMUNICATIONS LOST.
> 
>    So  either  you  change  SCTP's  parameters to achive a specific timer
>    behaviour with
>    the  impact  that  this  affects the entire association or you have to
>    introduce
>    another timer (as Xiangsong mentioned).
> 
>    Regards,
>    Arne
> 
>    --
>    Arne van Wilgen
>    NGN Protocols
>    Teles AG Communication Systems
>    Ernst-Reuter-Platz 8
>    D-10587 Berlin
>    GERMANY
> 

-- 
Brian F. G. Bidulock
[email protected]
http://www.openss7.org/