Hi Jim,
Thanks for your answer.
@Jonathan: Indeed i was just speculating whether it was an real error or not.
Maybe that count should be removed, if a pcb is reused.
best regards,
Martin
> Date: Wed, 27 Aug 2008 15:06:48 +0100> From: [EMAIL PROTECTED]> To:
> [email protected]> Subject: Re: [lwip-users] Lwip 1.3.0 Running out of
> TCP PCB's fast> > Pettinato, Jim wrote:> > This is due to pcbs being placed
> in a TIME_WAIT state; i.e. when you> > close a connection they're not really
> freed yet, they're hanging around> > waiting for enough time to pass to make
> sure no stray packets come in> > and screw up a future connection. Note that
> the default 'enough time' is> > like two hours, so an automatically
> refreshing web page will eat up pcbs> > very quickly. (This is TCP standard
> behavior as defined in the RFQs,> > though it makes little sense in today's
> high-speed networks.)> > > > Even though the error count gets incremented,
> lwIP will (upon finding no> > free pcbs) allocate a pcb from the TIME_WAIT
> list and use it, so this> > may not actually be a problem for your
> implementation.> > Ahh, while I knew about TIME_WAIT and lwIP reusing them, I
> didn't remember> it would increment the error count anyway, and I assumed B B
> was saying an> allocation had failed, corroborated by the error count. So
> yes, hopefully B> B was only speculating and not reporting a problem.> >
> Jifl> -- > eCosCentric Limited http://www.eCosCentric.com/ The eCos experts>
> Barnwell House, Barnwell Drive, Cambridge, UK. Tel: +44 1223 245571>
> Registered in England and Wales: Reg No 4422071.> ------["Si fractum non sit,
> noli id reficere"]------ Opinions==mine> > >
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