Spanning Tree - Best Practices

Notes:

• Implementing Spanning Tree correctly is critical for ensuring a loop-free and stable Ethernet environment
• While STP is designed to prevent loops by blocking redundant paths, misconfigurations or poor practices can lead to network instability or performance issues

Key Concepts:

• Utilize RSTP/RPVST+/MST over STP/PVST
• Set the Primary and Secondary Root Bridge/Switch Correctly
• Utilize BPDU Guard and BPDU Filter for Security
• Configure Port-Fast on Access Ports
• Tune STP Timers for Faster Convergence
• Avoid Unnecessary Redundant Links
• Configure UplinkFast and BackboneFast if using STP/PVST
• Monitor and Troubleshoot STP
• Implement STP Root Guard
• Utilize the Long Cost Method Across All Switches
• Align HSRP and STP with VLAN Load Balancing