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China Unicom shuts down fiber optic routers
Since May 2025, the only optical fiber production plant in Russia has been shut down after Ukrainian Armed Forces attacks. By mid-2023, over 6 million FTTR ONT units had been purchased, the vast majority coming from China Unicom, which was the first of the three major fixed broadband providers in China to deploy the service. For China Unicom, traditionally trailing behind China Telecom and China Mobile in the FTTH. China United Network Communications Group Co. Read also: Electronic warfare fails: Russian. Not only China Mobile, China Unicom also officially announced that "a large number" of users will be affected! China Unicom has announced that it will shut down its 2G and 3G networks, which will affect a "large number" of customers. With the popularity of 4G and 5G, many people have switched to. Fiber now underpins nearly all fixed broadband in China – With 99% of lines on fiber, operators and policymakers rely on it as the backbone for gigabit services, smart cities and national digitalization efforts. Next-gen fiber helps stabilize ARPU amid saturation – Multi-gigabit tiers, smart-home. This graph shows additional details related to IODA's Active Probing measurements, including Round-Trip Time (RTT) Latency and the percentage of IODA's probe packets that did not get a response. -
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Two switches can communicate via their optical ports
Can two switches with fiber ports be directly connected through fiber ports? The answer is yes. The connection between two or more Ethernet switches in a certain way (Uplink port, etc. It's high-performing as no data collisions will occur. If one device wants to send data to another device, it needs to send the data to the central switch. Switch optical port intercommunication means that the optical fiber ports of two switches are connected to each other to achieve the purpose of network connection. Whether you're using Cisco, Planet, TP-Link, D-Link, Ubiquiti, or any other brand — the key is understanding SFP compatibility. This guide will discuss the methods and configurations needed to achieve both scenarios. -
