Connecting Switches In A Stack - Extreme Networks Extreme Switching 3500 Series Installation Manual

Figure 5: ERS 3549GTS and ERS 3549GTS-PWR+ rear ports
Figure 6: ERS 3550T and ERS 3550T-PWR+ rear ports
Stacking cables must be ordered separately. The correct SFP direct attach cable is required in order
to enable and use stacking mode. For more information see,

Connecting switches in a stack

Cascading down or cascading up ports
About this task
Connect a switch to the next unit in the stack through a cascade cable.
The stack parameters are associated with the base unit, the physical stack order depends on the
base unit position and whether you configure the stack cascade up (stack up) or cascade down
(stack down). This designation depends on the stack cabling arrangement.
Note:
Extreme Networks recommends that you use a Cascade Down configuration.
December 2017 Installing Ethernet Routing Switch 3500 Series
Cable requirements on page 22.
Stacking switches
37