Vivotek IP7151 User Manual page 20

some packets may be lost due to network burst traffic and images may be obscured.
The UDP multicast protocol allows to save the bandwidth of server while serving
multiple clients at the same time.
The TCP 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 HTTP protocol allows the same quality as TCP protocol and the user don't need to
open specific port to streaming under some network environment.
If no special need is required, UDP unicast protocol is recommended. Generally
speaking, the client's choice will be in the order of UDP multicast → UDP unicast →
TCP → 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 protocol,
save, and return HOME to re-connect.
The fourth one is "Save Options". User can specify the recording folder, file name
prefix and suffix here.
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