Administrator Guide

In the following illustration, three VLANs are mapped to two multiple spanning tree instances (MSTI). VLAN
100 traffic takes a different path than VLAN 200 and 300 traffic. The behavior demonstrates how you can use
MSTP to achieve load balancing.
Figure 82. MSTP with Three VLANs Mapped to TWO Spanning Tree Instances
Topics:
• Spanning Tree Variations
• Implementation Information
• Configure Multiple Spanning Tree Protocol
• Enable Multiple Spanning Tree Globally
• Creating Multiple Spanning Tree Instances
• Influencing MSTP Root Selection
• Interoperate with Non-Dell Networking OS Bridges
• Changing the Region Name or Revision
• Modifying Global Parameters
• Enable BPDU Filtering Globally
• Modifying the Interface Parameters
• Configuring an EdgePort
• Flush MAC Addresses after a Topology Change
• MSTP Sample Configurations
• Debugging and Verifying MSTP Configurations
Multiple Spanning Tree Protocol (MSTP) 604