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SNMP Bridge TopologyChange

Can anyone tell me exactly what the following SNMP traps alert to?

snmp-server enable traps bridge

and

snmp-server enable traps bridge topologychange

I believe they should alert to topology change and change in state from forwarding to blocking etc.. but I also read a post that suggested it sometimes produces false alerts when ports go through the synchronistation process?

Can anyone help? Does anyone use this for spanning tree monitoring themselves?

Thanks.

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Re: SNMP Bridge TopologyChange

Use the snmp-server enable traps global configuration command to enable the switch to send Simple Network Management Protocol (SNMP) notification for various trap types to the network management system (NMS). Use the no form of this command to return to the default setting

[alarms | bridge | c2900 | cluster | config | copy-config | entity | envmon [fan | shutdown | status | supply | temperature | voltage] | flash | hsrp | mac-notification | port-security [trap-rate value] | rtr | snmp [authentication | coldstart | linkdown | linkup | warmstart] | stpx | syslog | vlan-membership | vlancreate | vlandelete | vtp]

Specify the host (NMS) that receives the traps by using the snmp-server host global configuration command

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