Spanning Tree Protocol Stp Overview

Enable STP on the access switch

To enable Spanning Tree Protocol (STP) on an IOS based switch, use the "spanning-tree vlan vlan_number" command from global configuration mode as shown below. Enter configuration commands, one per line. STP is a Layer 2 protocol that creates a loop-free topology by selectively blocking redundant paths. In Cisco networks, STP is fundamental for fault-tolerant design. Redundant links enhance high availability, but they can create network loops, leading to duplicated messages and unstable MAC address. This article aims to show you how to configure STP on a switch through the CLI. The default username and password is cisco/cisco. But redundant links may also introduce physical. They will pass STP packets, but do not have any thing running on the processor to support sending/receiving STP packets themselves. Never, ever. Hi Matthew, Unlike I guessed, applying the command without specifying any VLAN doesn't take effect. All the access switches are connected to the core switch through.