Can anyone help. I have this net (attached) that comprises one Cisco router 800 series and two Cisco 2960-C switches. The two switches are connected to the Cisco router; switch1 is attached to the router via a trunk and switch2 via an "access mode" link. The issue is that only one of them comes up at a time. I am getting "%SPANTREE-2-BLOCK_PVID_LOCAL: Blocking" that is bringing one of the switches port down. What could the issue be? The native vlan on all three is vlan 2.
