Chapter 2: Virtual Chassis Stacking
Stack trunks must be direct links between trunk ports. There
cannot be any intermediary networking devices, such as media
converters, Ethernet switches, or routers, between trunk ports.
Figure 27 is an example of this type of invalid trunk.
AT-x550-18XTQ Switch
Media Converter
AT-x550-18XSQ Switch
Figure 27. Invalid Stack Trunk with a Intermediary Networking Device
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