Wiring Configuration For The At-Stackqs Card; Figure 20: Stack Of Two Switches Connected With At-Stackqs Cards - Allied Telesis AT-x930-28GTX Installation Manual

x930 Series Installation Guide for Virtual Chassis Stacking
Wiring
The two stacking ports on the AT-StackQS Card have the same wiring
rules as do the S1 and S2 slots on the front panel of the switch. The first
Configuration for
rule is that the connections have to crossover to different ports on the
the AT-StackQS
cards in the switches. That is, port 1 on the card in one switch has to
Card
crossover to port 2 on the card in the next switch. The second rule is that
the unused ports on the cards in the top and bottom switches of the stack
have to be connected together to form a loop in the trunk.
An example of a stack of two switches is shown in Figure 20.
Figure 20. Stack of Two Switches Connected with AT-StackQS Cards
The stack in Figure 21 on page 64 has four switches.
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