What Network switches are you using?
 
Cisco recommended to us to use auto/auto on Gig E connections, as the
required flow control is negotiated along with the duplex....(ie, GigE
will not work to spec if hardcoded)
 
Before this was discovered, all Gig E connections here were "sorta"
hardcoded, as the switches did not allow it directly.
 
If a port was set to 1000mb/s, it would switch to auto, with no "FULL"
option available. The Network guys found a loophole, in that, if you
hardcode a port to 100/FULL, then change the speed parameter to
1000mb/s, it would retain the "FULL" config.....kind of a flaw in the
IOS they were exploiting. Since speaking with Cisco, and getting the
recommendation to NOT do this, we have changed all ports on our Gig E
switches to auto/auto, and the network is screaming.....haven't had a
duplex mismatch problem here in ages, except for a couple 100mb/s
clients that had been converted to auto/auto, but didn't have the change
made persistant across reboots, so came up and went to half duplex after
a reboot/power outage.
 
Paul
 
-- 

        -----Original Message-----
        From: veritas-bu-bounces at mailman.eng.auburn.edu
[mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of WEAVER,
Simon
        Sent: June 9, 2006 7:56 AM
        To: 'Spearman, David'; Chaves, Jan Amcil L.;
veritas-bu at mailman.eng.auburn.edu
        Subject: Re: [Veritas-bu] NIC teaming
        
        
        Jan
        We team and seems to work fine, providing the speeds are fixed -
we use 1GB Full
         
         

        Regards

        Simon Weaver
        3rd Line Technical Support
        Windows Domain Administrator 

        EADS Astrium Limited, B32AA IM (DCS)
        Anchorage Road, Portsmouth, PO3 5PU

        Email: Simon.Weaver at Astrium-eads.net
<mailto:Simon.Weaver at Astrium-eads.net> 

                -----Original Message-----
                From: Spearman, David [mailto:spe08 at co.henrico.va.us] 
                Sent: 07 June 2006 15:12
                To: Chaves, Jan Amcil L.;
veritas-bu at mailman.eng.auburn.edu
                Subject: Re: [Veritas-bu] NIC teaming
                
                
                We use it on both our master/media and media servers, no
problems at all.
                 
                David Spearman
                County of Henrico, Va.

                        -----Original Message-----
                        From: veritas-bu-bounces at mailman.eng.auburn.edu
[mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of Chaves,
Jan Amcil L.
                        Sent: Wednesday, June 07, 2006 10:01 AM
                        To: veritas-bu at mailman.eng.auburn.edu
                        Subject: [Veritas-bu] NIC teaming
                        
                        


                        Hi! Has anyone here tried teaming Intel Proset
NICs? 
                        
                        Just wondering if it works well now. It used to
be flaky back then and would cause backups to fail.
                        
                        
                        Thanks,
                        
                        Jan
                        

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Please notify the sender by return email.
The views of the author may not necessarily constitute the views of EADS
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