I am amazed by the number of networks that I encounter that do not have optimal spanning tree configurations. I first read Radia Perlman’s book “Interconnections” back in 1994. I am amazed that 15 ...

I have 2 Catalyst 6506-NEB's and a Catalyst 4006 all connected to each other through dot1q trunks. One of the 6506's is used for backup purposes therefore I would like all vlan traffic to transverse ...

On a small network (<250 users) I had a user buy a 5-port Linksys switch and uplink (via 2 cables) to Ethernet ports on the wall. This caused an infinite loop that caused some problems for the site, ...

The Spanning Tree Protocol, sometimes just referred to as Spanning Tree, is the Waze or MapQuest of modern Ethernet networks, directing traffic along the most efficient route based on real-time ...