GNS3 Spantree Syslog Messages

Hello Experts,

I'm been trying to generate of the following syslog error messages on GNS3 lab multiswitch 3725 but no matter what I do none of messages appear. Can someone tell me what I'm doing wrong?

%SPANTREE-2-BLOCK_BPDUGUARD:
%SPANTREE-2-BLOCK_PVID_LOCAL:
%SPANTREE-2-BLOCK_PVID_PEER:
%SPANTREE-2-CHNL_MISCFG:
%SPANTREE-2-LOOPGUARD_BLOCK:
%SPANTREE-2-LOOPGUARD_CONFIG_CHANGE:
%SPANTREE-2-LOOPGUARD_UNBLOCK:
%SPANTREE-2-PVSTSIM_FAIL:
%SPANTREE-2-PVSTSIM_OK:
%SPANTREE-2-RECV_1Q_NON_1QTRUNK:
%SPANTREE-2-RECV_BAD_TLV:
%SPANTREE-2-RECV_PVID_ERR:
%SPANTREE-2-ROOTGUARD_BLOCK:
%SPANTREE-2-ROOTGUARD_CONFIG_CHANGE:
%SPANTREE-2-ROOTGUARD_UNBLOCK:
%SPANTREE-2-UNBLOCK_CONSIST_PORT:
%SPANTREE-3-BAD_PORTNUM_SIZE:
%SPANTREE-3-PORT_SELF_LOOPED:
%SPANTREE-3-PRESTD_NEIGH:
%SPANTREE-4-PORT_NOT_FORWARDING:
%SPANTREE-5-EXTENDED_SYSID:
%SPANTREE-5-ROOTCHANGE:
%SPANTREE-5-TOPOTRAP:
%SPANTREE-6-PORT_STATE:
%SPANTREE-7-BLOCK_PORT_TYPE:
%SPANTREE-7-PORTDEL_SUCCESS:
%SPANTREE_FAST-7-PORT_FWD_UPLINK

Cheers

Carlton