On 12/09/2012 05:25 PM, Wade Shearer wrote: > What's unique about that cable or about the Linsys switch that they work > together?
I bet one of the pairs in the cable is bad, but not one of the the two pairs needed for 100 Mbit/s connection. The Cisco switch and the airport extreme are almost certainly trying to negotiate for gigabit, and since gigabit requires all four pairs to be good. I'm not sure why the switch won't drop down and negotiate for 100 Mbit when the gigabit fails. I could be wrong though. I recommend you invest in a good network tester. They aren't cheap, but if you get one that can do wire maps and other forms of cable testing, I think you'll find it quite handy. I bought myself a little lanscaper, and it has been extremely useful for my home networking projects. Besides being able to emit a powerful tone for tracing wires, it can do wire testing, and also test a port of a switch and determine what kind it is, and what protocols it supports (802.1q for example), vlans, etc. But mostly I use it for wire maps, and for telling me how long a cable run is. My Lanscaper can only do 100 mbit when it comes to testing a switch or an active connection, but that seems to be enough for me. I think the pro version can do gigabit. And if you're really rich there is the Fluke version! /* PLUG: http://plug.org, #utah on irc.freenode.net Unsubscribe: http://plug.org/mailman/options/plug Don't fear the penguin. */
