Technical data

Brocade MLX Series and NetIron Family Documentation Updates 61
53-1002805-03
Fabric Auto Tuning SNMP and syslog enhancement
1
TM Log Message (show tm log command output when auto tuning failed):
Mar 4 20:33:57: TM Link Shutdown due to auto tuning failure: SNM5/FE1/Link16 ?
LP15/TM1/Link4
TM Log Message (show tm log command output based on action taken):
Mar 4 20:33:57: TM Link CRC Errors: SFM1/FE1/Link 15-> LP3/TM1/Link3
OR
Mar 4 20:33:57: TM Link Shutdown due to CRC Errors: SFM1/FE1/Link 15->
LP3/TM1/Link3
FE command changes
The sysmon FE link command checks link status for errors such as slow rate CRCs on the FE
side of the link and starts tuning the link if the number of CRC errors in a monitoring period exceed
pre-defined threshold.
Brocade (config)# sysmon fe link
Syntax: [no] sysmon fe link
The default setting is enabled. Use the no command to disable the command.
Brocade (config)# sysmon fe link threshold 5 10
Syntax: [no] sysmon fe link threshold error-threshold poll-window-size
Set the error-threshold parameter for the error threshold value for a 60 second monitoring period.
The minimum value is 1 the maximum value is 300. The default is 5.
Set the poll-window-size parameter to the number of 60 second monitoring periods in the polling
window. The minimum value is 1 the maximum value is 300. The default is 10.
Brocade (config)# sysmon fe link action none
Syntax: [no] sysmon fe link action none | shutdown-link | syslog
Set the action for the link when the error threshold has been exceeded.
None - takes no action.
Shutdown-link - powers down the link when the error threshold has been exceeded.
Syslog - sends a syslog message when the error threshold has been exceeded.
Shutdown-link and syslog can be used together to send a syslog message and power down the link.
Brocade (config)# sysmon fe link log-backoff 60
Syntax: [no] sysmon fe link log-backoff num
Specify the log back-off period in which only one log message is sent. This parameter is only
applicable when syslog is set as an action.
The num parameter is the number of seconds in which only one log message is sent. The
acceptable range from 1 - 14400 seconds. The default value is 60 seconds.