INFINIBAND: How To Validate If any Infiniband (IB) Switch Ports Have Errors/Failures or Issues? ("listlinkup" Command)

Below "listlinkup" command can be used on IB switch to check if any of the Infiniband Switch ports have errors/failures or issues.

listlinkup | egrep -i "error|bad"

If there are any issues on any of the Switch ports you may be AutomaticHighErrorRate or AutomaticBadSpeedOrWidth errors as follows. AutomaticHighError or BadSwitch errors may happen due to lose cabling, bad cable or bad switch port etc.

Connector  0A Present<->  Switch Port 20 down (AutomaticHighErrorRate)

Connector  0A Present<->  Switch Port 8 down (AutomaticBadSpeedOrWidth)

Products to which Article Applies

Infiniband Switches

Additional Reference

https://docs.oracle.com/cd/E36265_01/html/E36266/z40001002006287.html
 

tarun boyella