Ports 25 To 37 And Ports 49 To 61 With 100Gbps Transceivers; Figure 31: Stack Trunk Examples Of Three Or Four Switches With 40Gbps Links - Allied Telesis x950 Series Installation Manual

Chapter 3: Virtual Chassis Stacking
Ports 25 to 37 and
Ports 49 to 61
with 100Gbps
Transceivers
80
To build stacks of three or four switches, Allied Telesis

recommends using all four ports. Examples are shown in
Figure 31. Please note how the top and bottom switches are
connected to form a loop in the trunk.
Figure 31. Stack Trunk Examples of Three or Four Switches with 40Gbps
Here are the guidelines to using ports 25 to 37 for the x950-28XSQ or
x950-28XTQm switch and ports 49 to 61 for the x950-52XSQ switch with
100Gbps transceivers for trunks:
You can use either fiber optic transceivers or QSFP28-1CU or

QSFP28-3CU direct attach cables for the trunk links.
The trunk can have a maximum of two ports per switch.

You can use any two of the four 100Gbps ports for the trunk.

Links