Hello all,
I have a 892 router configured on fa0 with vlan1 and a catalist 3560.
On catalist all ports are in access mode and vlan1.
When I'm connecting port fa0 from router to catalist, the catalist port is shuted down and I see the folowing:
%SPANTREE-2-BLOCK_BPDUGUARD: Received BPDU on port Fa0/24 with BPDU Guard enabled. Disabling port.
%PM-4-ERR_DISABLE: bpduguard error detected on Fa0/24, putting Fa0/24 in err-disable state
What should I do on router on catalist to make the connection working ?
Thanks.