Configuring Stp - Cisco Catalyst 2960 Software Configuration Manual
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Also See for Catalyst 2960:
- Configuration manual (2288 pages) ,
- Command reference manual (800 pages) ,
- Hardware installation manual (108 pages)
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Configuring STP
This chapter describes how to configure the Spanning Tree Protocol (STP) on port-based VLANs on the
Catalyst 2960, 2960-S, and 2960-C switch. The switch can use either the per-VLAN spanning-tree plus
(PVST+) protocol based on the IEEE 802.1D standard and Cisco proprietary extensions, or the rapid
per-VLAN spanning-tree plus (rapid-PVST+) protocol based on the IEEE 802.1w standard. A switch
stack appears as a single spanning-tree node to the rest of the network, and all stack members use the
same bridge ID. Unless otherwise noted, the term switch refers to a standalone switch and to a switch
stack.
Stacking is supported only on Catalyst 2960-S switches running the LAN base image.
Note
For information about the Multiple Spanning Tree Protocol (MSTP) and how to map multiple VLANs
to the same spanning-tree instance, see
spanning-tree features such as Port Fast, UplinkFast, root guard, and so forth, see
"Configuring Optional Spanning-Tree Features."
For complete syntax and usage information for the commands used in this chapter, see the command
Note
reference for this release.
This chapter consists of these sections:
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Understanding Spanning-Tree Features
These sections contain this conceptual information:
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OL-26520-01
Understanding Spanning-Tree Features, page 16-1
Configuring Spanning-Tree Features, page 16-12
Displaying the Spanning-Tree Status, page 16-24
STP Overview, page 16-2
Spanning-Tree Topology and BPDUs, page 16-3
Bridge ID, Switch Priority, and Extended System ID, page 16-4
Spanning-Tree Interface States, page 16-5
How a Switch or Port Becomes the Root Switch or Root Port, page 16-8
Spanning Tree and Redundant Connectivity, page 16-8
Catalyst 2960 and 2960-S Switches Software Configuration Guide, Release 15.0(1)SE
C H A P T E R
Chapter 17, "Configuring MSTP."
16
For information about other
Chapter 18,
16-1
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