Configuration Guidelines - HP 1910 User Manual

Figure 191 Configuring MSTP globally (on Switch D)

Configuration guidelines

Follow these guidelines when you configure MSTP:
Two devices belong to the same MST region only if they are interconnected through physical links,
•
and share the same region name, the same MSTP revision level, and the same VLAN-to-MSTI
mappings.
If two or more devices have been designated to be root bridges of the same spanning tree instance,
•
MSTP will select the device with the lowest MAC address as the root bridge.
• If the device is not enabled with BPDU guard, when an edge port receives a BPDU from another port,
it transits into a non-edge port. To restore its port role as an edge port, you need to restart the port.
Configure ports that are directly connected to terminals as edge ports and enable BPDU guard for
•
them. In this way, these ports can rapidly transit to the forwarding state, and the network security
can be ensured.
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