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New Member

3750 switch strange behaviour..

Hi All,

I am facing a issue in 3750 switch .The switch is connected stack .The switch is working randomily.if u removed the power connector and connect back the switch working normally.

I am attaching the show-tech support report.


Re: 3750 switch strange behaviour..

When you say the switch is working randomly....define randomly.

Hall of Fame Super Gold

Re: 3750 switch strange behaviour..

What switch? Switch 1 or 2? Can you shed some light with "working randomly"?

Just a note ... Your config has alot of "strange" lines:

udld aggressive

errdisable recovery cause udld

Comment: Why put UDLD Aggressive on when you enable automatic port recovery?

spanning-tree portfast bpduguard default

errdisable recovery cause bpduguard

Comment: Why enable BPDU Guard when you enable automatic port recovery?

Just a note.

New Member

Re: 3750 switch strange behaviour..


The lights also not shed in the switch.if u connect the power cable again, it is working.

Its a campus network the switches are connected in the remote side for administrator overhead, we enabled these command. u are suspecting any physical layer issue.