26.7.3 Compatibility with Other Spanning Trees
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(1) Compatibility with Single Spanning Tree
Multiple Spanning Tree can be used with STP or Rapid STP when run with Single Spanning Tree. Before a connection with one of these is established, connections with other MST regions are cut. High-speed status transitions are performed for connections with Rapid STP.
(2) Compatibility with PVST +
Multiple Spanning Tree is not compatible with PVST+. However, because the access port of switches for which PVST+ is running operate in the same way as Single Spanning Tree, the switches can connect to Multiple Spanning Tree.