Configuring Pvst+ And Rpvst - Cisco NCS 4200 Series Configuration Manual

Configuring PVST+ and RPVST+

This chapter describes how to configure the Spanning Tree Protocol (STP) on port-based VLANs on the
Cisco router. The router can use 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.
For information about the Multiple Spanning Tree Protocol (MSTP) and how to map multiple VLANs to
the same spanning-tree instance, see the Multiple Spanning Tree Protocol chapter.
For complete syntax and usage information for the commands used in this chapter, see the command
Note
reference for this release.
• STP Overview, page 38
• Spanning-Tree Topology and BPDUs, page 38
• Bridge ID, Switch Priority, and Extended System ID, page 40
• Spanning-Tree Interface States, page 40
• How a Switch or Port Becomes the Root Switch or Root Port, page 43
• Spanning Tree and Redundant Connectivity, page 44
• Spanning-Tree Modes and Protocols, page 45
• Restrictions for PVST+ and RPVST+, page 45
• Spanning-Tree Interoperability and Backward Compatibility, page 46
• Default Spanning-Tree Configuration, page 46
• Configuring PVST+ and RPVST+, page 47
• Configuring STP Peer Under EFP/TEFP, page 48
• Disabling Spanning Tree, page 49
• Verifying PVST/RPVST Settings, page 50
• Configuring the Root Switch, page 51
• Configuring a Secondary Root Switch, page 52
LAN Switching Configuration Guide, Cisco IOS XE Everest 16.6.1 (Cisco NCS 4200 Series)
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