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STP root port
STP root port

STP root port

As we have mentioned before, all the working interfaces on root switch are the placed in forwarding state. All the other switches (called no root switches) det…

Spanning Tree Priority
Spanning Tree Priority

Spanning Tree Priority

STP is Layer 2 loop prevention mechanism that will be block one port on network switch if it’s detects a loop of the broadcast messages within it architecture.…

Spanning Tree Modes: MSTP, PVST+, and RPVST+
and RPVST

Spanning Tree Modes: MSTP, PVST+, and RPVST+

STP, Spanning Tree Protocol are enabled on all of vendors switches by the default. We have the different Spanning Tree modes both for the Cisco proprietary an…

STP designated port
STP designated port (DP)

STP designated port

We’ve already learned that on the shared Ethernet segments the switch with best path to the reach root switch is placed in the forwarding state. That switch is…

Electing the Root Switch in STP
Electing the Root Switch in STP

Electing the Root Switch in STP

The STP process works by the default on Cisco switches and the begins with  root switch election . The selection is based on  bridge IDs (BIDs)  sent in BPDUs.…

STP Port fast, BPDU Guard, Root Guard Configuration
BPDU Guard

STP Port fast, BPDU Guard, Root Guard Configuration

Spanning Tree Protocol (STP) and (RSTP) rapid spanning tree protocol are switching’s mechanisms that prevent LAN with the redundant links to the forward Ethern…

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