Allied Telesis AT-GS950/48 - Manual (Page 351)

AT-GS950/48 Web Interface User Guide
351
The AT-GS950/48 switch determines regional boundaries by examining the
MSTP BPDUs received on the ports. A port that receives a MSTP BPDU from
another bridge with regional information different from its own is considered to
be a boundary port and the bridge connected to the port as belonging to
another region.
The same is true for any ports connected to bridges running the single-
instance spanning tree STP. Those ports are also considered as part of
another region.
Table 8. MSTP Region
Configuration Name: Marketing Region, Revision Level 1
Switch 1 Switch 2
MSTI ID 1:
VLAN: Sales (VID 2)
VLAN: Presales (VID 3) MSTI ID 1:
VLAN: Sales (VID 2)
VLAN: Presales (VID 3)
MSTI ID 2:
VLAN: Accounting (VID 4) MSTI ID 2:
VLAN: Accounting (VID 4)