Dell S3048-ON

Rapid Spanning Tree Protocol (RSTP)
The Rapid Spanning Tree Protocol (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).
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 Networking 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
• Modifying Interface Parameters
• Conguring an EdgePort
• Prevent Network Disruptions with BPDU Guard
• Inuencing RSTP Root Selection
• Conguring Spanning Trees as Hitless
• Enabling SNMP Traps for Root Elections and Topology Changes
• Conguring Fast Hellos for Link State Detection
• Flush MAC Addresses after a Topology Change
Important Points to Remember
• RSTP is disabled by default.
42
686 Rapid Spanning Tree Protocol (RSTP)