Spanning Tree BPDU Filter Notes

Published by Keyboard Banger on

There are two seperate ways to configure it:

– globally: (config)#spanning-tree portfast bpdufilter default
+ enables BPDU filter on all portfast interfaces
+ kicks them out of portfast if they receive a BPDU

– per portfast interface: (config-if)#spanning-tree bpdufilter enable
+ effectively disables STP on the port. This may lead to switching loops since switches won’t detect redundant links between them.


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Keyboard Banger

Keyboard Banger is a network engineer from Africa. He has been working in network support and administration since 2008. He started writing study notes about certification exams and technology topics a couple of years ago. When he's not writing articles, he can be found wandering on technical forums.


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