Appendix ൖ factors influencing system capability – COP-USA SDDVR-WF User Manual
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7. Appendix
ൖ factors influencing system capability
You must consider the whole system capability issue and factors influencing your system and
system optimized settings when you set up your system. Bandwidth including stream rate setting, frame
rate, and too many client connections influencing frame rate is the main issue that we need to consider.
Following are the common factors which will influence the server efficiency that we need to
consider:
1
ᇬ Firstly is your bandwidth. Generally on LAN the bandwidth is not a problem but we must
consider the upload bandwidth on WAN or some private networks. If the upload bandwidth is
513k or lower, you would better set the output stream of server within 512k, otherwise the
video or audio may play discontinuously.
2
ᇬ We must emphasize the ADSL. Usually we are considering the download bandwidth of
ADSL, but for the video server application, we are using its upload bandwidth. Thus at this
point we have to concern about the upload bandwidth for the system design, for example, for an
ADSL with 1.5M download bandwidth, the upload bandwidth is less than 512k. Thus the
upload bandwidth is what we have to concern about mostly for the network design.
3
ᇬ About the image parameter setting according to networks please refer to “image advanced
setting” in “image setting”
4
ᇬ Too many clients viewing from a video server will influence the server capability and
cause the frame reducing. Consequently, we recommend that the maximum viewing
connections is 20.
5
ᇬ Capture function provided by video server is using the front-side high definition image
capture method. Frequent captures will influence the server capability and cause frame rate
reducing.
6
ᇬ Network overload will influence the system capability and cause the audio and video
playing discontinuously.
7
ᇬ CPU capability insufficiency will cause the audio and video playing discontinuously.
8
ᇬ Wireless transmission will cause the disconnection and server re-connection from client
due to the unstable of wireless network.