Configuring RSTP

Most newer Cisco switches use RSTP by default. RSTP prevents frame looping out of the box and no additional configuration is necessary. To check whether a switch runs RSTP, the show spanning-tree command is used: SW1#show spanning-tree VLAN0001 Spanning tree Read More …

How RSTP works

Just like STP, RSTP creates a topology database of the network. To prevent loops, some interfaces on switches are placed in forwarding state and other interfaces in discarding state. How does RSTP decides in which state the port will be Read More …

What is RSTP?

RSTP (Rapid Spanning Tree Protocol) is an evolution of STP. It was originally introduced as IEEE 802.1w standard and in 2004 IEEE decided to replace STP with RSTP in 802.1D standard. Finally, in 2011, in the IEEE decided to move Read More …

How STP works

STP uses the Spanning-Tree Algorithm (SPA) to create a topology database of the network. To prevent loops, SPA places some interfaces in forwarding state and other interfaces in blocking state. How does STP decides in which state the port will Read More …

What is STP?

Spanning Tree Protocol (STP) is a network protocol designed to prevent layer 2 loops. It is standardized as IEEE 802.D protocol. STP blocks some ports on switches with redundant links to prevent broadcast storms and ensure loop-free topology. With STP Read More …