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AT-S60 Management Software User’s Guide
Figure 46 illustrates the same two AT-8400 Series switches and the same
two virtual LANs. But in this example, the two switches are running MSTP
and the two VLANs have been assigned different spanning tree
instances. Now that they reside in different MSTIs, both links remain
active, enabling the VLANs to forward traffic over their respective direct
link.
Production
Sales
VLAN in
VLAN in
MSTI 1
MSTI 2
AT-8400 SERIES
Untagged
Ports
Untagged
Ports
AT-8400 SERIES
Figure 46 MSTP Example of Two Spanning Tree Instances
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