Allied Telesis AT-S62 - Manual (Page 356)

Chapter 19: Multiple Spanning Tree Protocol
Section IV: Spanning Tree Protocols 356
Figure 110 illustrates the same two AT-8524M switches and the same
two virtual LANs. But in this example, the two switches are running MSTP
and the two VLANs have been assigned to different spanning tree
instances. Both links remain active now that they reside in different
MSTIs, enabling the VLANs to forward traffic over their respective direct
link.
Figure 110 MSTP Example of Two Spanning Tree Instances
LINK
MODE
LINK
MODE
FAULT
RPS
MASTER
PWR
MODE STATUS
AT-8524M Fast Ethernet Switch
LINK
MODE
LINK MODE
FAULT
RPS
MASTER
PWR
MODE STATUS
AT-8524M Fast Ethernet Switch
Sales
VLAN in
MSTI 1
Production
VLAN in
MSTI 2
Untagged
Ports Untagged
Ports