Users Guide

Rapid Spanning Tree Protocol (RSTP)
Dell Networking OS supports rapid spanning tree protocol (RSTP).
Protocol Overview
RSTP is a Layer 2 protocol — specied by IEEE 802.1w — that is essentially the same as spanning-tree protocol (STP) but provides faster
convergence and interoperability with switches congured with STP and multiple spanning tree protocol (MSTP).
The Dell operating system (OS) supports three other variations of spanning tree, as shown in the following table.
Table 63. Spanning Tree Variations Dell Networking OS Supports
Dell Networking Term IEEE Specication
Spanning Tree Protocol (STP) 802.1d
Rapid Spanning Tree Protocol (RSTP) 802.1w
Multiple Spanning Tree Protocol (MSTP) 802.1s
Per-VLAN Spanning Tree Plus (PVST+) Third Party
Conguring Rapid Spanning Tree
Conguring RSTP is a two-step process.
1 Congure interfaces for Layer 2.
2 Enable the rapid spanning tree protocol.
Related Conguration Tasks
• Adding and Removing Interfaces
• Modifying Global Parameters
• Enable BPDU Filtering Globally
• Modifying Interface Parameters
• Conguring an EdgePort
• Prevent Network Disruptions with BPDU Guard
• Inuencing RSTP Root Selection
• SNMP Traps for Root Elections and Topology Changes
• Congure Spanning Tree
• Conguring Fast Hellos for Link State Detection
• Flush MAC Addresses after a Topology Change
Important Points to Remember
• RSTP is disabled by default.
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700 Rapid Spanning Tree Protocol (RSTP)