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  1. Internal network of data center Different types of applications have different requirements for  data center networks . The front end network usually adopts TCP protocol, and IP/ Ethernet network technology becomes the mainstream of  the front end network , with low cost and good scalability. Storage networks have been pursuing large bandwidth and high throughput to maximize disk and CPU efficiency. FC technology with higher Ethernet speeds over the same period was adopted in the late 1990s. In the 20th century, with the scale application of higher speed SSDS, especially the recent emergence of NVMe technology with high speed and low latency, storage requires faster and more efficient networks. The computing network mainly adopts InfiniBand private network, which is typically represented by HPC and other high-performance services. Low delay is its ultimate pursuit. However, with the development of RoCE technology, Ethernet has been widely used in computing network....

  Internet Data Center, the English abbreviation is IDC.   The reason why it is not called "DC" directly is mainly to avoid confusion with direct current (Direct Current). Moreover, today's data centers are generally connected to the Internet and focus on Internet services, so it is more accurate to call them "IDC".   From a functional point of view, the data center is an oversized computer room with many servers dedicated to centralized management of data (storage, calculation, and exchange).   According to statistics from industry organizations, the global data traffic processed by data centers in 2020 reached 15.3ZB (1ZB≈1 billion TB), accounting for 99.35% of the global total traffic. In other words, almost all Internet data cannot be separated from the processing of data centers, which shows its importance.   According to popular sayings, data centers are important infrastructure like water plants and power plants. They are the driving force of the digital ...