SNMP protocol:message types Message type Function GetRequest GetNextRequest Mgr-to-agent:"get me data" GetBulkRequest (instance,next in list,block) InformRequest Mgr-to-Mgr:here's MIB value SetRequest Mgr-to-agent:set MIB value Response Agent-to-mgr:value,response to Request Trap Agent-to-mgr:inform manager of exceptional event Network Management 9-16Network Management 9-16 SNMP protocol: message types GetRequest GetNextRequest GetBulkRequest Mgr-to-agent: “get me data” (instance,next in list, block) Message type Function InformRequest Mgr-to-Mgr: here’s MIB value SetRequest Mgr-to-agent: set MIB value Response Agent-to-mgr: value, response to Request Trap Agent-to-mgr: inform manager of exceptional event