IEEE 802.1d - Spanning Tree

How to Setup

 * Elect one Root Bridge device (Per VLAN)
 * Bridge ID is used to determine Root Bridge.
 * The lowest Bridge ID become the Root Bridge


 * Elect one Root Port per device
 * A Root Ports is the best port to forward data.
 * A Port State determines what the port should do.There are 5 Port States.
 * Disabled
 * Blocking
 * Listening
 * Learning
 * Forwarding
 * A Root Port is in the state of forwarding.
 * Elect Designated Ports

Path Determination and Load Balancing

 * Switching is determined by Path Cost. Lower is better. Memorize Bolded speeds.
 * You should set these values manually, specifically for values not listed.
 * Path Cost is calculated by the Receiving Switch. Therefore it always starts as 0, as determined by the Root Bridge.
 * Path Costs are added to total path cost.
 * Switching is determined entirely by the non-root switches.
 * b