On a network deployed with Layer 2 single-access rings and multi-access rings, configure multiple MSTP processes so that spanning trees of different processes are calculated independently and do not affect each other. MSTP ensures that spanning trees in rings are calculated independently. After MSTP multi-process is enabled, each MSTP process can manage certain ports on a device. Each Layer 2 interface can be managed by multiple MSTP processes.
Before configuring MSTP multi-process, complete and activate the MST region configuration.