The Multiple Spanning Tree Protocol (MSTP) supports multiple instances of
Spanning Tree to efficiently channel VLAN traffic over different interfaces.
MSTP is compatible with both RSTP and STP; a MSTP bridge can be
configured to behave entirely as a RSTP bridge or a STP bridge.
To display the MSTP Settings page, click Switching → Spanning Tree →
MSTP Settings in the navigation panel.
Figure 22-11. MSTP Settings
Configuring the Spanning Tree Protocol