Never tried this, but I am assuming that if you attempt 100M across CAT3,
you would see errors accumulate on the switch port at a pretty substantial
rate??? If that is the case, I would initially set everything to auto-detect
and watch the switch port statistics. After a little while, I would think it
would be clear which were the problem ports. You could then go through and
hard code them to 10-full and all other to 100-full on both ends. Easiest of
course would be just to set everything to 10-full. Depends on need I
suppose...

Charles

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of
M.C. van den Bovenkamp
Sent: Wednesday, March 05, 2003 7:39 AM
To: [EMAIL PROTECTED]
Subject: Re: 10 half or 100 full [7:64482]


Mike Momb wrote:

> very well.  My question is this, what has been this groups experience on
how
> to set the ports for the maximum bandwith.  We are using a combination of
> Cat 5 & Cat 3 cables.   Any advice would be appreciated.

CAT3? Ouch. If you can't be *very* sure which cable run is what (CAT3
vs. CAT5), forcing everything to 10/Full is as good as it's going to
get, because CAT3 won't support 100Mbps.

Which also makes autonegotiation A Very Bad Idea, as that will happily
negotiate 100Mbps over CAT3, even when it does what it's supposed to.

                Regards,

                        Marco.




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