Qlogic 12000 Series Reference Manual page 119

Sample Output:
-> ismIslSet12x 0
L01S2Ba 8x mode is DISABLED
L01S2Bb 8x mode is DISABLED
L01S2Bc 8x mode is DISABLED
...
NOTE:
ismChassisSetMtu
Allows the user to view, set and unset the chassis maximum packet MTU Capability and VL Capability
for all ports.
Syntax:
ismChassisSetMtu [mtuCap] {vlCap} [-bounce]
Options:
mtuCap
4=2048 bytes, 5=4096 bytes.
vlCap
1=VL0, 2=VL0,VL1, 3=VL0-VL3, 4=VL0-VL7
-bounce
Brings the active links down and back up if a new value is set.
D000103-000 E
This command is included for backwards compatibility. The
ismIslSetWidth command is prefered.
This command ONLY works on chassis' which support 8X link
aggregation. This command will enable 8X link aggregation so that
INTERNAL switching will be at 8X. External ports will remain
configured to 4X and will not require special cabling configuration to
function correctly. To force links to only operate at 8X, use the '8X
only' option. Calling this function without an enable8xBit will display
the ports' current values.
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.
Switch Command Line Interface
Groups and Commands
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