Cisco 3845 - Security Bundle Router Software Guide

CHAPTER
15-1
Cisco ME 3800X and 3600X Switch Software Configuration Guide
OL-23400-01
15
Configuring Optional Spanning-Tree Features
This chapter describes how to configure optional spanning-tree features on the Cisco ME 3800X and
ME 3600X switch. You can configure all of these features when your switch is running per-VLAN
spanning-tree plus (PVST+). You can configure only the noted features when your switch is running the
Multiple Spanning Tree Protocol (MSTP) or the rapid per-VLAN spanning-tree plus (rapid-PVST+)
protocol. STP is enabled by default on switch ports.
For information on configuring the PVST+ and rapid PVST+, see Chapter 13, “Configuring STP.” For
information about the Multiple Spanning Tree Protocol (MSTP) and how to map multiple VLANs to the
same spanning-tree instance, see Chapter 14, “Configuring MSTP.”
Note For complete syntax and usage information for the commands used in this chapter, see the command
reference for this release.
• Understanding Optional Spanning-Tree Features, page 15-1
• Configuring Optional Spanning-Tree Features, page 15-5
• Displaying the Spanning-Tree Status, page 15-10
Understanding Optional Spanning-Tree Features
• Understanding Port Fast, page 15-2
• Understanding BPDU Guard, page 15-2
• Understanding BPDU Filtering, page 15-3
• Understanding EtherChannel Guard, page 15-3
• Understanding Root Guard, page 15-3
• Understanding Loop Guard, page 15-4

Cisco 3845 - Security Bundle Router Specifications

General

Brand	Cisco
Model	3845 - Security Bundle Router
Category	Switch
Language	English