SPANNING TREE PROTOCOL

In this article ,I want to explain the concept of spanning tree protocol ( STP )
What is Spanning tree?

• A tree ( Extended star) topology
• A tree has no loops
• Spanning all devices.
• All devices are connected..

Spanning tree Algorithm:

Switches uses this algorithm to decide which ports should be shutdown.

• Choose one switch to be " root bridge".
• Choose a "root port" on each other switch.
• Choose a "designated port"  on each segment.
• Choose down all ports.

 Working of STP:

• Election of root bridge.
• Root ports.
• Designated ports.
• Forwarding ports.
• Blocking ports.