Allied Telesis AT-GS924MX - Figure 19: Stack of Four Switches in the Ring Topology

AT-GS900MX Series Installation Guide for VCStack
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Figure 19. Stack of Four Switches in the Ring Topology
The topologies are the same in terms of network speed and performance.
However, the ring topology is the recommended wiring configuration
because of the secondary path through the stacking ports. The two
pathways protect the switches of the stack against the loss of
communications due to a failure of a stacking port, cable, or switch.