How does 20 IP Cameras connected to the router affect speed

[thevlcuser]

Hello!

I have a question about how an IP Camera affects the bandwidth/speed of the router/internet.

The scenario would be for a hotel like this:

I would have 20 IP Cameras connected with ethernet cabel to a Switch which in turn would be connected
to the router. (So they do not use any Wifi. Only connected with ethernet cable)
So the IP Cameras will be accessible and looked at from a PC on the local network. (Never from the outside from any external IP)

Now I wonder if one would stream 5,10,15,20 cameras at the very same time. Does this affect ther internet speed if other
people uses the WIFI connection to surf on the internet as usual?

I hope I did explain this well

 

[thiggins]

All the IP camera traffic is going through the switch, which can handle gigabit throughput per port. Wired traffic only hits the router processor if it's to/from the internet, which it is not in the case you describe.

So, no, IP camera traffic will not affect Wi-Fi performance.

 

[Greg72]

Only if all twenty are sending streams out to the cloud at the same time would it affect your available bandwidth. If wifi, slowest device(s) can cause band congestion. It is why in professional settings, stuff like IP cameras are on their own network subnet that is not a VLAN.

 

[thevlcuser]

Only if all twenty are sending streams out to the cloud at the same time would it affect your available bandwidth. If wifi, slowest device(s) can cause band congestion. It is why in professional settings, stuff like IP cameras are on their own network subnet that is not a VLAN.

Yes that seems interesting. I should put all the IP Cameras on the own isolated network and own switch and router which in this case will not be connected to the internet but only work internally.

This seems to be a solution in this case. Thank you!

 

[thiggins]

I thought your first post said all cameras were Ethernet connected and did not use internet?

 

[sbsnb]

Yes that seems interesting. I should put all the IP Cameras on the own isolated network and own switch and router which in this case will not be connected to the internet but only work internally.

Just put your DVR or whatever will be collecting the feeds from the camera on the same switch. If they're hard wired and all connected to a switch, they are effectively on their own network. What happens "behind" the switch stays behind the switch. It will have no impact on the rest of the network on the other side of the switch.