Automatic Port Blocking

[soportesinaki]

Dear Sirs,

Let me explain my problem. In my network, I have a Point to Point Radio Link which, when fails, traffic passes through only one way. This causes the spanning tree frames passing through only in one way but not in the other, making a loop in my network and all the network falls.

I think this could be solved if the switch automatically blocked the port connected to this radio link when one mac or IP, which is only accesible via this Radio Link, is not answering pings.

Does anybody know if there is any command I could use to configure something like this? I don't know if it is possible...

I wish I have explained my issue clear enough.

Thank you for your help!
Regards,

Inaki

 

[ADB100]

Enable UDLD on the switches on either end of the link.

Andy

 

[soportesinaki]

Thank you Andy!
I think will be the Solution.

Regards,
Inaki

 

[BuckWeet]

Depending on your switches, you could enable loopguard.

Loop guard helps prevent bridging loops that could occur because of a uni-directional link failure on a point-to-point link.

 

[soportesinaki]

Thank you BuckWeet. I will test both solutions.

Best regards,
Inaki

 

[Flyers01]

Note on this ports will go into error disable
you may want to put something like this in your config
errdisable recovery interval 300

 

[soportesinaki]

Thank you Flyers01. This night after a storm de UDLD has worked and the port has gone into error disble. Will configure the recovery interval.

Thanks to all for your help.

Best regards,
inaki

 

[BuckWeet]

What does it take for the WLAN to go out of unidirectional status?