26 | Install the S4810
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Important Points to Know
When stacking the S4810, keep the following in mind:
• Data ports are configured as stacking ports in predefined stacking groups of 40G (four 10G ports or one 
40G port).
• When a stack-group number is assigned, the ports associated with that group are configured as stacking 
ports (Figure 4-1):
• stack-group 0 = ports 0-3, stack-group 1 = ports 4-7, stack-group 2 = ports 8-11, and so on 
through stack-group 11 = ports 44-47.
• stack-group 12 = port 48, stack-group 13 = port 52, stack-group 14 = port 56, stack-group 15 = 
port 60.
• All the ports in a stack-group are placed in stacking mode. You cannot use the unused ports in that group 
as data ports.
Figure 4-1.  S4810 Stack-Group Assignments
Stack-Group 1
Stack-Group 0
Stack-Group 11
........
Stack-Group 3
Stack-Group 2
........
Stack-Group 10
S-G 12
S-G 13
S-G 14
S-G 15