With the advancement of technology, communication technology, and the continuous development of the optical module industry, our requirements for the network are becoming higher and higher. Videos must watch at least Blu ray, games must not have lag, and live streaming must be smooth. Have we ever thought about where these videos come from? Let’s talk about how data is transmitted in the era of big data?
Our internet is ultimately the flow of data, and data generally exists in the form of packets on the internet. When you send a message to someone, a request is generated, which generates several packets on the phone or computer network card, and the packets are sent to our final server.
If we are watching a video using WIFI, the data packet will be sent to our router or optical cat through the mobile communication chip, and then enter the access layer switch through the network cable or fiber optic. The bandwidth requirement of the access layer switch is not very high, just connect some end devices; The next station of the access layer switch is the aggregation layer switch, which is the aggregation point of multiple access layer switches. Its main function is to handle all the traffic of the access layer devices, and its performance is better than that of the access layer switch. The aggregation layer switch needs to provide an uplink to deliver data packets to the next station, which is the core switch. Core switches are mainly used for high-speed forwarding, with higher reliability and throughput. The data packets of the gigabit optical module next come to the firewall, which mainly filters the data packets flowing through it to remove unsafe factors.
When an unsafe factor is discovered, it will close the unique port to prevent virus invasion. The firewall then connects to the router, which acts as a gateway and analyzes the data to be transmitted to the designated location according to the optimal route. Although the data has gone through many steps and processes, our actual time may only take a few tens or even a few milliseconds.
Mshine optics think, with the improvement of 5G technology in the future, the latency of data transmission will become lower and lower. We may not need as much in real life, but there will be fierce battles in fields such as unmanned driving and AI.
