Chapter 2: Virtual Chassis Stacking
You can use AT-XEM2-1CQ Line Cards for a stack trunk. But
since the card has only one 100Gbps transceiver slot, each switch
has to have two cards. Figure 19 is an example of a stack trunk of
four switches with the line card.
Figure 19. Example of a Stack Trunk with AT-XEM2-1CQ Line Cards
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