Qlogic 12000 Series Reference Manual page 118

Switch Command Line Interface
Groups and Commands
NOTE:
ismPortSetSpeed
Allows the user to view and set port speeds.
Syntax:
ismPortSetSpeed port [speed] [-bounce]
Options:
port
Port name.
speed
1=SDR 2=DDR 3=SDR/DDR 4=QDR 5=SDR/QDR 6=DDR/QDR 7=SDR/DDR/QDR.
bounce
Brings the active links down and back up if a new value is set.
Sample Output:
-> ismPortSetSpeed S3BL08b 1
S3BL08b link speed is SDR.
NOTE:
ismIslSet12x
Allows the user to view, set and unset the chassis link width (except external ports).
Syntax:
ismIslSet12x [enable8xBit] [-bounce]
Options:
enable8xBit
2=enable(8X only), 1=enable(AUTO 1X/4X/8X), 0=disable
-bounce
Brings the active links down and back up if a new value is set.
1-110
The port option is case sensitive.
The port option is case sensitive. This command can be used to set
the supported link speed on the port. This command does not cause
the port to change the active or enabled speed of the port. The active
and enabled speed is changed the next time the port transitions down
then back up. Calling this function with only the portName option
displays the current values. Calling this function with the [-bounce]
option disruptively brings active links down then back up so the links
use the new setting immediately. Otherwise the new setting is used
the next time links retrain.
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