Extreme Networks ExtremeWare 7.7, Command Reference Manual

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292 ExtremeWare 7.7 Command Reference Guide
Commands for Configuring Slots and Ports on a Switch
disable card-scan
disable card-scan
Description
Disables the card-scan feature on MSM slots in the BlackDiamond switch.
NOTE
This command is available only on the BlackDiamond switches.
Syntax Description
This command has no arguments or variables.
Default
By default, card-scan is enabled.
Usage Guidelines
On certain BlackDiamond switches running earlier releases of ExtremeWare, hot insertion of a slave
MSM causes one or more of the following conditions:
• Some or all of the I/O modules are reset.
•
The front panel links go down on some or all of the I/O modules.
• The backplane links go down on some or all of the I/O modules.
The card-scan feature discovers and repairs this condition, thus preventing the need for a manual reset
of the switch. When card-scan is enabled, the system logs one of the following messages if a problem
occurs when the MSM is inserted:
Cardscan (msm insert) Attmpting to fix broken BP connection for slot x
Cardscan (msm insert) Attmpting to fix packet missed for slot x
Cardscan (msm insert) Attmpting to fix card x in reset (y)
Cardscan (timer) Attmpting to fix card x in reset (y)
In these messages,
x
represents a slot number and
y
represents debugging information.
To view the card-scan status of the switch, use the
show switch
command.
Example
The following command disables card-scan:
disable card-scan
History
This command was first available in ExtremeWare 7.4.