Introduction to Private VLANs
The concepts behind Private VLANs are in fact rather simple, but it is quite easy to get discombobulated in the details.
Catalyst
Measuring Cable Lengths on a Catalyst Switch
A while back, I was playing on a 3750 switch in a customers lab and came across something I’ve never seen before. It seems that some Cisco switches have a built in Time-domain reflectometer, or TDR.