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Chapter 2: Virtual Chassis Stacking
Ports 25 to 37
with 40Gbps
Transceivers
60
You can also use ports 25 to 37 for stack trunks. These ports support both
40Gbps and 100Gbps transceivers. You can use either type of
transceivers for the trunk, but the rules are slightly different. Here are the
guidelines to using 40Gbps transceivers for the trunk:
The trunk links can consist of fiber optic transceivers or QSFP1CU
or QSFP3CU direct attach cables.
Stacks can have both AT-x950-28XSQ and AT-x950-28XTQm
Switches.
For stacks of two switches, you can use two, three, or four ports
per switch for trunks. Examples are show in Figure 23.
Figure 23. Example Stacks of Two Switches with Trunk Ports 25 to 37 and
40Gbps Links
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