Cisco Systems 3750E 用户手册
C H A P T E R
18-1
Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-02
18
Configuring STP
This chapter describes how to configure the Spanning Tree Protocol (STP) on port-based VLANs on the
Catalyst 3750-E or 3560-E 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 Catalyst 3750-E or 3560-E standalone switch and to
a Catalyst 3750-E switch stack.
Catalyst 3750-E or 3560-E 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 Catalyst 3750-E or 3560-E standalone switch and to
a Catalyst 3750-E switch stack.
For information about the Multiple Spanning Tree Protocol (MSTP) and how to map multiple VLANs
to the same spanning-tree instance, see
to the same spanning-tree instance, see
For information about other
spanning-tree features such as Port Fast, UplinkFast, root guard, and so forth, see
Note
For complete syntax and usage information for the commands used in this chapter, see the command
reference for this release.
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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