Qlogic 12000 Series Reference Manual page 127

Options:
[linkWidth]:
1=1X, 2=4X, 3=1X/4X, 4=8X, 5=1X/8X, 6=4X/8X, 7=1X/4X/8X.
-bounce
Brings the active links down and back up if a new value is set.
Sample Output:
-> ismIslSetWidth 4
NOTE:
ismPortSetBeacon
Allows the user to view and set the port beacon.
Syntax:
ismPortSetBeacon [port] [beacon]
Options:
port
Port name.
beacon
1=on, 0=off
Sample Output:
-> ismPortSetBeacon L101 on
NOTE:
D000103-000 E
This command ONLY works on chassis' supporting 8X link
aggregation. This command sets link aggregation so INTERNAL
switching is the specified width. External ports remain configured to
4X and will not require special cabling configuration(s) to function
correctly. Calling this function without any parameter displays the
current values of the port(s).
Calling this function with the [-bounce] option disruptively brings
active links down and back up so the links use the new setting
immediately. Otherwise the new setting will be used the next time
links retrain.
The port optoin is case sensitive. Calling this function with only the
portName option will only display the current values.
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