LevelOne WCS-6020 User Manual page 22

Network Camera User's Manual
The HTTP protocol allows for less packet loss and produces a more accurate
video display. The downside with this protocol is that the real-time effect is worse
than that with the UDP protocol.
The TCP guarantees the complete delivery of streaming data and thus provides
better video quality. However, the real-time effect is not as good as that of the
UDP protocol.
If no special need is required, UDP protocol is recommended. Generally
speaking, the client choice will be in the order of UDP → HTTP. After the
Network Camera is connected successfully, "Protocol Option" will indicate the
selected protocol. The selected protocol will be recorded in the user's PC and will
be used for the next connection. If the network environment is changed, or the
user wants to let the web browser to detect again, manually select the UDP and
TCP protocol, save, and return HOME to re-connect.
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