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message.
The additional track name is “vnd.onvif” and this track is for event data transmission. Once if the
event(motion, alarm) is triggered, RTSP server will transmit event data to RTSP client(usually NVR).
RTSP client can receive these data and analyze them. The event data usually includes event trigger
time, coordinate…etc.
3.2.2.3 SNMP
SNMP (Simple Network Management Protocol) is an Internet standard protocol on top of application layer that
restructures the exchange of management information among network-attached nodes, which helps
administrators to remotely manage network devices and master network problems with ease.
