Majd Sawaf
Spanning Tree is a Layer 2 protocol designed to stop looping in a network. This is done by first choosing a root bridge and also act as a point of reference for all other devices within the STP network.
STP Expression
Root bridge
Non-root bridges
BPDU
Bridge ID
Port Cost
Path Cost
Types of Spanning Tree Protocols
IEEE 802.1d
PVST+ (Cisco’s default version)
IEEE 802.1w
802.1s (MSTP)
Rapid PVST+