I have a Catalyst 4006 L3 switch with Catalyst 2950 cascaded to it. All of sudden the following error massage started appearing on L3 switch. I have not made any changes to any switch. Whats causing this error? Some users lost network connectivity during this period.
%SPANTREE-2-RX_BLKPORTPVID: Block 3/1-2 (agPort 14/1) on rcving vlan 102 for inc peer vlan 22
%SPANTREE-2-RX_1QPVIDERR: Rcved pvid_inc BPDU on 1Q port 3/1-2 (agPort 14/1) vlan 102