User`s manual

22
Installation AppendixDefi nitions in
Confi guration
Introduction
How to Use
3. The "MPEG-4 Protocol Options" allows choices of the connection protocol
between client and server. The four protocol choices to optimize your usage are
UDP unicast, UDP multicast, TCP and HTTP.
• The UDP Unicast protocol allows for more real-time audio and video
streams. However, some packets may be lost due to network burst traffi c
and images may be obscured.
• The UDP Multicast protocol saves server bandwidth 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 eff ect 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 has changed, or the user wants to let the web browser again detect,
manually select the UDP protocol, save, and return HOME to re-connect.
4. The "MP4 Saving Options" save the selections and can specify the recording
folder, fi lename prefi x and suffi x.
User's features (Cont.)