How can i rate the minimun bandwith to make a normal connection Server-Client by ethernet?

Answered

Permanently deleted user

February 23, 2021 11:05

When making a project we can use the Nx Calculator to know the data bitrate coming from camera devices to server.

In a case of server-client connection using 7001 port fowarding, does the Nx Witness VMS data rates changes?

We have 20x 4MP ans 8x 2MP IP cameras, calculating it will give us nearby 500 Mbps data rating. It means i'll need a ethernet link with this capability (on both sites?)

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  Norman

  • Network Optix team

  February 23, 2021 12:25

  Hi @...,

  Not sure how you calculated it, but when I calculate it at settings Best and with 25 fps the required avg. bitrate is 230 Mbit/s. In general, such settings aren't applied. Quality Medium and 15 fps is just fine for most situations.

  Given the fact that a 1 Gbit/s NIC is default and most server have at least 2 NICs, you should be fine, also when you actually require 500 Mbit/s.

  If the cameras are at location A and the server at location B and internet is the way to connect, then you have a challenge, but nowadays there you also can lease 1 Gbit/s connections, but these come at a price, especially when a high uptime is required.

  But if cameras and servers are in the same location and connected through the LAN, in general no issues are expected. Involve the system administrator as early as possible, so bottlenecks in the network can be resolved before deployment of the cameras, since standard existing office networks often have a capacity of 100 Mbit/s, while most modern offices have 1 Gbit/s connections on any network wall outlet.

  If cameras will be viewed remotely, the internet connection needs to be sufficient. If you would like to view all cameras in a high-res, you need sufficient bandwidth and a powerful workstation. But if you just use Nx in the default settings with the adaptive scaling enabled, any 20 Mbit/s+ connection should do the job, but again, consult your Sysadmin for recommendations.

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  Permanently deleted user

  February 23, 2021 13:41

  That's what I was looking for.

  Thank you  very much Norman for your assistance. =)

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