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VIVOTEK
User's Manual - 25
Client Settings
This chapter explains how to select the stream transmission mode and saving options on the
local computer� When completed with the settings on this page, click Save on the page bottom
to enable the settings�
H.264 / MPEG-4 Protocol Options
Depending on your network environment, there are four transmission modes of H�264 or MPEG-4
streaming:
UDP unicast: This protocol allows for more real-time video streams� However, network packets may be
lost due to network burst trafc and images may be broken. Activate UDP connection when occasions
require time-sensitive responses and the video quality is less important� Note that each unicast client
connecting to the server takes up additional bandwidth and the Network Camera allows up to ten
simultaneous accesses�
UDP multicast: This protocol allows multicast-enabled routers to forward network packets to all clients
requesting streaming media� This helps to reduce the network transmission load of the Network Camera
while serving multiple clients at the same time� Note that to utilize this feature, the Network Camera must
be configured to enable multicast streaming at the same time� For more information, please refer to
RTSP Streaming on page 49�
TCP: This protocol guarantees the complete delivery of streaming data and thus provides better video
quality� The downside of this protocol is that its real-time effect is not as good as that of the UDP protocol�
HTTP: This protocol allows the same quality as TCP protocol without needing to open specic ports for
streaming under some network environments� Users inside a firewall can utilize this protocol to allow
streaming data through�
H.264/MPEG-4 Protocol Options