STP – Path cost info, identifying the Root Bridge, Root Cost vs Path Cost, and debugging STP port state transitions!

Most of this demonstration will be on the above Topology, except for the the output for changing Port cost, for that I'll just be using 2 Trunk links between SW1 and SW2.   STP Link Speed to Path Cost, and how to change Path cost on an interface   The link speed to STP cost … Continue reading STP – Path cost info, identifying the Root Bridge, Root Cost vs Path Cost, and debugging STP port state transitions!

Out Of Office after a minor surgery – Back to the grind ASAP!

Have had a minor surgery yesterday, Monday 10/9, and will be out for an undetermined amount of time during recovery from said minor surgery - Be back ASAP! ***Update 12/10/2017*** I have long since been back reviewing and updating my SWITCH articles, as I found a bit to be confusing after coming back, so I've … Continue reading Out Of Office after a minor surgery – Back to the grind ASAP!

 STP – Spanning-Tree Protocol Fundamentals, Root Bridge Election, BIDs and BPDUs, STP Port Roles / States!

This is an example of STP doing what it does best, and that is putting the Amber lit port 2 in "Blocking" state, to prevent a Switching Loop from forming. This is the logical Topology for a better idea of what's plugged into what: This post is focused on the "original" STP, all the fundamentals … Continue reading  STP – Spanning-Tree Protocol Fundamentals, Root Bridge Election, BIDs and BPDUs, STP Port Roles / States!