Dell Networking C1048P Guide De Mise En Route page 23

NOTE: Although individual C1048P stack members do not require a
separate uplink to a parent C9010 because they use the stacking
connection to the master PE for their C9010 uplink, Dell Networking
recommends that you connect more than one C1048P stack unit to the
C9010 for redundancy. See Connecting to a C9010 Switch for more
information.
Creating a C1048P Stack
Create a C1048P stack by connecting adjacent units using the mini-SAS stack
ports on the back panel. Figure 8 shows the switches connected in a ring
topology, the recommended topology for a C1048P stack.
1. Install the C1048Ps to be stacked in a rack as described in Installing the
C1048P in a Rack.
2. Starting with the C1048P at the top of the stack, connect a mini-SAS
cable from a stack port on its back panel into one of the stack ports on
the C1048P directly below it in the rack. You must separately order mini-
SAS cables. If necessary, use a longer (1 meter or 3 meter) mini-SAS cable
to connect the C1048Ps.
3. Connect a mini-SAS cable in the other stack port on the second C1048P
and into one of the stack ports on the third C1048P directly below it.
Continue from top to bottom until all C1048Ps in the rack are connected
with a mini-SAS cable.
4. Connect a mini-SAS cable from the bottom C1048P in the stack to the
top C1048P to complete a ring topology.
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