QSFP-DD, OSFP, and CFP8: Which is the Best for 400G?

There are three criteria for a successful form-factor: small size, low power consumption, and interoperability between all systems vendors. As we all know, the SFP/SFP+ and QSFP+/QSFP28 are successful form-factors for 1G/10G and 40G/100G networks. In fact, for 100G networks, there are 4 different form-factors: CFP, CFP2, CFP4, and QSFP28. 100G The transmission departments in telecommunication networks need a pluggable…

PAM4 — The High-Speed Signal Interconnection Technology of Next-Generation Data Center

What Is PAM4? PAM4 (4-Level Pulse Amplitude Modulation) is one of PAM modulation technologies that uses 4 different signal levels for signal transmission. Each symbol period can represent 2 bits of logic information (0, 1, 2, 3), that is, four levels per unit time. In the data center and short-distance optical fiber transmission, the modulation scheme of NRZ is still…

Will Bare Metal Switch Be Popular in 100G Data Center?

Nowadays, the requirement for bandwidth and transmission speed in data centers is increasing strikingly. To meet the demand for it, networking industries are moving toward a new direction. Focuses previously changing from 1G, 10G and 40G are now shifting to 100G. Therefore, 100G is the trend of data center. According to a report by Dell’Oro Group, bare metal switch vendors lost share in the 100G data center switching market in 2018 while traditional vendors, such as H3C, Cisco and Huawei, gained. Do you agree with that? Let’s take a look at what the bare metal switch is and whether it will be popular in 100G data center?

Do You Know These about Cloud Computing Data Center?

With the increasing of enterprise informatization application system, space, electricity distribution system and air conditioning refrigeration of data centers tend to be saturated. Simultaneously, the utilization rate of the servers is generally low. In order to solve the contradiction between the development of the data center and the rapid growth of information resources, the concept of cloud computing and the…