port disabled

[brendorfer]

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.

[brendorfer]

On a close lookup I found what was the problem. I have portfast enabled for all ports as default for spanning-tree.

I just diabled the portfast on that port:

spanning-tree portfast disable

and connection is working.