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Rapid Spanning Tree Protocol (RSTP)
The Rapid Spanning Tree Protocol (RSTP) is a Layer 2 protocol — specified by IEEE 802.1w — that is
essentially the same as spanning-tree protocol (STP) but provides faster convergence and interoperability
with switches configured with STP and multiple spanning tree protocol (MSTP)..
Protocol Overview
The Dell Networking OS supports three other versions of spanning tree, as shown in the following table.
Table 57. Spanning Tree Versions Supported
Dell Networking Term IEEE Specification
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
Configuring Rapid Spanning Tree
Configuring RSTP is a two-step process.
1. Configure interfaces for Layer 2.
2. Enable the rapid spanning tree protocol.
Related Configuration Tasks
• Adding and Removing Interfaces
• Modifying Global Parameters
• Modifying Interface Parameters
• Configuring an EdgePort
• Prevent Network Disruptions with BPDU Guard
• Influencing RSTP Root Selection
• Enabling SNMP Traps for Root Elections and Topology Changes
• Configuring Fast Hellos for Link State Detection
• Flush MAC Addresses after a Topology Change
Important Points to Remember
• RSTP is disabled by default on the switch.
• The system supports only one Rapid Spanning Tree (RST) instance.
Rapid Spanning Tree Protocol (RSTP)
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