Reference Guide

706 | Rapid Spanning Tree Protocol (RSTP)
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• Modify Global Parameters
• Modify Interface Parameters
• Configure an EdgePort
• Preventing Network Disruptions with BPDU Guard
• Influence RSTP Root Selection
• Enable SNMP traps for RSTP, MSTP, and PVST+ collectively using the command snmp-server
enable traps xstp.
• SNMP Traps for Root Elections and Topology Changes
• Fast Hellos for Link State Detection
• Flush MAC Addresses after a Topology Change
Important Points to Remember
• RSTP is disabled by default.
• FTOS supports only one Rapid Spanning Tree (RST) instance.
• All interfaces in VLANs and all enabled interfaces in Layer 2 mode are automatically added to the
RST topology.
• Avoid using the
range command to add a large group of ports to a large group of VLANs; adding a
group of ports to a range of VLANs sends multiple messages to the RSTP task. When using the
range
command, Dell Networking recommends limiting the range to 5 ports and 40 VLANs.
Configure Interfaces for Layer 2 Mode
All interfaces on all bridges that will participate in Rapid Spanning Tree must be in Layer 2 and enabled.