Re: freeze under heavy network load

[Joe Hamelin <joe@nethead.com>]

Right Diana, that's always been the way I've handled Cisco
switches.  My thought is: if you don't know which way to set the port
(i.e.; use auto) then you must not know what's on the other end.  

-Joe

-- 
  ================================================================
   Joe Hamelin <joe@nethead.com> Edmonds, Washington 425.640.5614 
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On Fri, 8 Mar 2002, Diana Eichert wrote:

:On Fri, 8 Mar 2002, Jedi/Sector One wrote:
:
:> On Fri, Mar 08, 2002 at 09:14:34PM +0100, jean-philippe wan-hoi wrote:
:> >    I don't know if it will help someone in the future, but I don't spend
:> > too much time writing here the solution for my problem. I just switched
:> > off the autosense mode for the card. The system is not freezing anymore
:> > since then. bye.
:> 
:>   Do that only if you really experience bad things in auto-negociation mode.
:>   
:>   I had a lot of trouble in the past on machines whoose NICs (most were
:> 3C905 cards) were forced to 100baseTX-FD . Catalyst switches had troubles
:> with forced NICs configuration, and the result is that they often switched
:> the ports to half-duplex.
:> 
:>   Auto-negociation is a safe bet in most cases.
:
:my experience, in a facility that has a couple hundred large
:5000/5500/6500 CatSwitches, is that auto negotiation is at fault most of
:the time, but on the Cat's themselves.  We usually fix the port speed and
:duplex and let the connected system auto-negotiate.  Letting both sides
:auto-negotiate is a real crap shoot.
:
:my US$.02 worth
: