High Latency Caused by IP Camera

I

itservicegrange

n3wb
Sep 30, 2022
4
0
United Kingdom
Hello,
Recently I encountered a problem with the latency of devices on the network. After troubleshooting for quite a while I found out that the issues are caused by one of our IP Cameras.
Ping to devices with the camera plugged in was around 60m/s jumping to 220m/s.
Ping to devices with the camera unplugged was a typical 1-4m/s even with a wireless bridge.
The camera is powered by Dahua Poe Switch.
It's set up with static IP with Gateway and DNS pointing to the NVR.

Device Type: IPC-HFW2831T-ZS-S2
System Version: V2.820.0000000.49.R, Build Date: 2022-08-15
WEB Version: V3.2.1.1289022
ONVIF Version: 21.12(V3.1.0.1264421)
Security Baseline VersionV2.1

Any reasons why the camera would cause high latency on all devices on the network?
We have other access points and IP cameras and this is the only one causing these issues. (Bare in mind that the rest are connected by cable)

1667232187924.png
 
Video camera traffic going through the router is the source of your latency. The ideal situation is to have video cameras on their own, private, network that never connects to your "normal" LAN. I have four cameras connected using a wireless bridge, but not as part of a mesh system, and they connect to switch that resides only on network dedicated to surveillance cameras. Zero latency introduced that way.
 
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I've physically isolated the camera, wireless bridge, and NVR from the rest of the network (and router) but I still get high ping to mesh AP and the camera. When I disconnect the camera the ping to both APs is down to 1m/s. The camera's Gateway and DNS are pointing to NVR as well. Do you know any reason the latency would still be high in this scenario?
1667293476494.png
 
Make and model of the devices that comprise the 'mesh wireless bridge' ?
 
itservicegrange said:
Hello,
Recently I encountered a problem with the latency of devices on the network. After troubleshooting for quite a while I found out that the issues are caused by one of our IP Cameras.
Ping to devices with the camera plugged in was around 60m/s jumping to 220m/s.
Ping to devices with the camera unplugged was a typical 1-4m/s even with a wireless bridge.
The camera is powered by Dahua Poe Switch.
It's set up with static IP with Gateway and DNS pointing to the NVR.

Device Type: IPC-HFW2831T-ZS-S2
System Version: V2.820.0000000.49.R, Build Date: 2022-08-15
WEB Version: V3.2.1.1289022
ONVIF Version: 21.12(V3.1.0.1264421)
Security Baseline VersionV2.1

Any reasons why the camera would cause high latency on all devices on the network?
We have other access points and IP cameras and this is the only one causing these issues. (Bare in mind that the rest are connected by cable)

View attachment 144360
Click to expand...
because wifi doesn't prioratize sustained connections.
Which is one of the reasons why I use a cheap router in access point mode per wifi camera so the stream doesn't have to compete with other wifi devices for network priority.
 
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tech_junkie said:
because wifi doesn't prioratize sustained connections.
Which is one of the reasons why I use a cheap router in access point mode per wifi camera so the stream doesn't have to compete with other wifi devices for network priority.
Click to expand...
Same here.
Asus wireless router with DHCP disabled and static LAN IP, serves 2 Wi-Fi cams and nothing else.
 
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itservicegrange said:
Hello,
Recently I encountered a problem with the latency of devices on the network. After troubleshooting for quite a while I found out that the issues are caused by one of our IP Cameras.
Ping to devices with the camera plugged in was around 60m/s jumping to 220m/s.
Ping to devices with the camera unplugged was a typical 1-4m/s even with a wireless bridge.
The camera is powered by Dahua Poe Switch.
Click to expand...

Probably the Dahua switch is not a 1000 Gb uplink or its barely in spec to link at 1Gb. I never liked any of the camera manufacture's switches.
In that case, get a tp link TL-SG1210P or something that is 10/100 POE to 1Gb uplink. Then your ping to other devices will be fine.
But keep in mind, the more cameras that have to switch back at the router, the more packets are going to be prioritized higher than your ping and the network traffic to and from your devices.
Hence why a camera system should be a separate network if it is just a 1Gb network.

If it was a 10Gb or 100Gb network, then it wouldn't matter.
 
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