Site Recovery Manager provides Simple Network Management Protocol (SNMP) traps that collect information sent by the API. All traps are compliant with the SNMPv1 type. Information provided by the traps can be used to initiate actions by client applications.Callers of the Site Recovery Manager API interface should listen for the SNMP traps. You might need to configure the vCenter Server to forward the SNMP traps to the registered SNMP Server. The MIB file is located in the following directory:<installdir>\www\VMWARE-SRM-TRAPS-5_0.MIB

There are two ways to generate SNMP traps from Site Recovery Manager. The first is the method presented here and in other Site Recovery Manager documentation. The second method to generate traps is by configuring SNMP actions on the events and alarms that Site Recovery Manager adds to vCenter Server. Alarms with SNMP traps configured are all raised using the generic alarm definition in VMWARE-VC-EVENT.mib. Consequently alarm‐based traps do not have explicit definitions. To manage them, you would need to synthesize the trap, capture its contents, parse the trap, then determine how to filter it.

Look at MIB Names for SNMP Traps for more details.