Chapter 15: Spanning Tree; Stp Flavors - Cisco 500 Series Administration Manual

Stackable managed

Hide thumbs Also See for 500 Series:

Table of Contents

Spanning Tree

Cisco 500 Series Managed Switch Administration Guide

This section describes the Spanning Tree Protocol (STP) (IEEE802.1D and

IEEE802.1Q) and covers the following topics:

STP Status and Global Settings

Spanning Tree Interface Settings

Rapid Spanning Tree Settings

Multiple Spanning Tree

MSTP Properties

VLANs to a MSTP Instance

MSTP Instance Settings

MSTP Interface Settings

STP protects a Layer 2 Broadcast domain from Broadcast storms by selectively

setting links to standby mode to prevent loops. In standby mode, these links

temporarily stop transferring user data. After the topology changes so that the

data transfer is made possible, the links are automatically re-activated.

Loops occur when alternate routes exist between hosts. Loops in an extended

network can cause switches to forward traffic indefinitely, resulting in increased

traffic load and reduced network efficiency.

STP provides a tree topology for any arrangement of switches and

interconnecting links, by creating a unique path between end stations on a

network, and thereby eliminating loops.

Show Quick Links

Table of Contents