NVR Causing Network Speed
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Respected All,
Greetings!!
Pankaj This Side.
I need your help, in my organization we have around 100 CCTV camera and 5 NVR. whenever I am plugging LAN Cable to my NVR my network speed is down from 100mbps to 3mbps.
Please help me in this regards urgently.
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@pankajpomal1 you are running 100 cameras off a 100mbps network?
That many cameras should be gig, and also isolated from the rest of your network. Even at low 1mbps - what is your resolution of your cameras at, what is the mode of the streaming 264, 265, mpeg? What is the frames per second set to? Do your cameras record to the nvr constant, or is it only doing that on an event (motion)?
I would look to see what 1 camera is using, and then size your network off of that. And again this network should be different than your normal users data network path.
I would isolate this camera network from your normal network(s) either via different physical switches or vlans. With the camera network being sized to handle the traffic from your cameras.. If you use 5 different NVRs, think about even maybe 5 different camera networks. And look at your uplinks from switches and to your router, etc. So that there are no bottlenecks. If need be use multiple uplinks from switches to other switches.
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@johnpoz Thanks for response.
Yes I am using 100 cameras of 2MP. (1280x1024 res.) streaming at 264 with 20fps with NVR recording all the motions activity.
Please guide how to do. -
@pankajpomal1 and all of your network connections are only 100mbps?
Rough napkin math puts you at like 2-3mbps per camera when recording.. (if your only doing motion only)
You might be able to get by if there is not a lot of motion on all the cameras at the same time.
But you need to move this data flow away from your normal users data flow.. With 100 some cameras, I would assume you have multiple switches.. So you run into a bottleneck on the uplinks..
Can you provide a basic drawing of how everything is connected, how many switches - what is connected to what, etc. Are you just all on one flat network, ie 192.168.1.0/24 or do you have multiple networks 192.168.1/24, 192.168.2/24, 192.168.3/24 etc..
You really should be using gig for the amount of cameras and and that recording rate..
edit: in the most basic of setups using just simple physical isolation. You would use different switches for your camera network vs your user network.
When you have multiple networks for connecting all of your devices you would have to worry about physical uplinks between switches, etc. But generally the idea is to separate all your camera data onto its own switches and uplinks from your user data. So depending how many switches, how many devices, and physical locations of users and cameras in relation to what switches they can connect too.
