Allied Telesis AT-GS950/8 - Manual (Page 377)

AT-GS950/8 Web Interface User Guide
377
The AT-GS950/8 switch determines regional boundaries by examining the
MSTP BPDUs received on the ports. A port that receives an 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 7. 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)