VLANs / Bridging / BPDU

[Dave+Seddon]

Or just 

interface GigabitEthernet0/1
spanning-tree portfast 

Or disable spanning tree 

no spanning-tree vlan 1-100 


You could also do some MAC address filtering as the BPDUs are ethernet 
multicast, but that smacks of hard work.  :) 


Peter Wood writes: 

> Sods law, after working on this for two weeks I ask for help, then 20 
> minutes later I figure it out. The easiest solution was to disable BPDU on 
> the machines port on the Cisco. 
> 
> interface GigabitEthernet0/1
>  switchport mode trunk
>  spanning-tree bpdufilter enable 
> 
> Thought I'd post it for reference, so it'll appear somewhere in a archive 
> if others need it. 
> 
> Pete.
> -- 
> Peter Wood BSc (Hons) :: <peter at alastria.net> :: Tel +44 1606 828010
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