Hi, do not buy old 10 Mbps Hubs or switches unless they are very cheap (Cisco 1924 switches are cheap on Ebay). I suggest to test the following version if you use 10/100 switches: Set the switch to 10Mbps full duplex and leave the PC at AUTO. This could make the upgrade easier because you have just to configure the switch. Jens Neelsen
--- "Adam Grimes (adgrimes)" wrote: > I think the best bet for you would be to start buying the > 10/100Mbps > switches and manually setting the PCs to 10Mbps. > That way you havent wasted money on expensive 10Mbps switches > which > (when Cat5 cable is eventually installed) will be obselete. > Then it's > just a case of going round and doing the (tedious) job of > switching the > NIC's back to autosense... > I'll try and test the Cat3/Cat4 problem out in our lab and > post an > update. > > Adam > > Adam Grimes > > IT Engineer - CCNP/CCDA > Cisco Systems > > > > -----Original Message----- > From: Pat Do [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, February 19, 2003 3:00 AM > To: [EMAIL PROTECTED] > Subject: 100 Mbps on Cat3 or Cat4 [7:63310] > > > Are unintelligent 10 Mbps hubs better than unintelligent > 10/100 Mbps > switches when the network cables that connect the PCs to the > hub or > switch are Cat3 or Cat4? > > I provide network services to dozens of non-profits. Most of > the sites > have Cat3 or Cat4 cabling. I have a co-worker who says that 10 > Mbps hubs > should be used until the sites are upgraded to Cat5 (which > won't be > happening any time soon). > > His rational: If the PC NICs are set to auto detect speed and > the > unintelligent 10/100 switch is set to auto detect speed, that > data will > try to pass through the Cat3 or Cat4 wire at 100 Mbps. He > says that > while the data can pass thru the wire at those rates, it's the > signaling > that gets scrambled at that rate on a Cat3 or Cat4 wire. > Consequently, > to prevent signaling problems that may in turn cause data > integrity > problems, he's recommending to use 10 Mbps hubs. Is this a > valid > argument? > > Note: New, unintelligent 10 Mbps hubs appear to be becoming > less > available and more costly relative to unintelligent 10/100 > Mbps switches > as time goes on. Consequently, this issue is starting to have > financial > implications. [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=63388&t=63310 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
