How to organize 1000 network camera monitoring system architecture?

August 10, 2022

How do thousands of network cameras network? There are many aspects to be considered. Today, we will focus on the points that need special attention and hope to help everyone.
1000 network camera networking, there are many factors to consider, to consider the total traffic, camera management, network broadcast storms and so on. If there are streaming media servers, storage servers, etc., consider server installation, network throughput, and so on.
First, the IP address planning
More than 1000 cameras, plus various types of network equipment and accessory equipment, the internal network address of category C can no longer meet the demand. You can consider using the private network address of category B, choose between 172.16.0.0~172.31.0.0. website address;
More than 1000 cameras cannot be in the same LAN. Otherwise, there is a large amount of broadcast data, which seriously affects the bandwidth and stability of the system. It is necessary to divide different VLANs according to the purpose and area of ​​the camera. The related servers and monitoring devices can be divided into independent ones. VLAN.
Second, IP address planning case analysis
Here is a hypothesis, the network address is 172.16.0.0;
According to the purpose and area of ​​the camera, 20 VLANs are allocated, so the host bit needs to be borrowed to 5 bits (2^5=32>20). To use the VLAN number 100~120, you need to divide 172.16.0.0 into 20 subnets, and the subnet mask is 255.255.248.0.
Third, network equipment selection and networking
Networking is recommended in the form of a Layer 3 switch. The network topology is shown in the following figure.


It is recommended to use two switches on the Layer 3 switch. The gateway addresses of different VLANs are configured in two Layer 3 switches, and the two Layer 3 switches enable gateway redundancy protocols such as VRRP to improve network reliability.
The Layer 2 switch acts as the access switch of the camera and accesses the Layer 3 switch in a dual uplink mode.
Configure VLANs based on the camera's purpose or area and configure related VLAN data on the interface of the Layer 2 switch.
Fourth, the camera power supply selection
POE power supply is preferred, and the current POE power supply technology is completely available. The ball machine needs to be powered separately. Each ball machine is powered separately. It is not recommended to use centralized power supply.
Five, cable selection
Priority is given to the six types of network cables. The power cable selects RVV3*2.5, YJV3*6 and other models according to the site conditions.
to sum up
The above is just a very rough solution, only the basic functions can be realized. In actual networking, you need to consider network security, server configuration, whether to use POE power supply, integrated wiring, monitoring and management platforms, and so on.

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