Allied Telesis AT-S62 - Manual (Page 492)

Chapter 22: Spanning Tree and Rapid Spanning Tree Protocols
492 Section IV: Spanning Tree Protocols
to communicate with each other.
Figure 162. VLAN Fragmentation
You can avoid this problem by not activating spanning tree or by
connecting VLANs using tagged instead of untagged ports. (For
information on tagged and untagged ports, refer to Chapter 24, “Port-
based and Tagged Virtual LANs” on page 545.) Another approach is to
use the Multiple Spanning Tree Protocol, explained in Chapter 23 on page
507, to create multiple spanning tree domains within a network.
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AT-8524M Fast Ethernet Switch
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