Processing DPI requests

The SNMP agent can initiate three DPI requests: GET, SET, and GET-NEXT. These requests correspond to the three SNMP requests that a network management station can make. The subagent responds to a request with a response packet. The response packet can be created using the mkDPIresponse() library routine, which is part of the DPI API library.

The SNMP subagent can only initiate two requests: REGISTER and TRAP. A REGISTER request indicates to the SNMP agent which MIB variables are supported by the subagent. A TRAP request notifies the SNMP agent of an asynchronous event that should be sent to network management stations.