Data Center DSFP Interface Introduction
In the past period of time, data center networks and servers were mainly accessed through 25G and 100G networks, and the most involved interfaces were SFP28 and QSFP28. The encoding used by both interfaces is 28 Gbps NRZ. With the rapid development of high-speed services such as big data, distributed storage, AI, and 5G, the scale of data center servers and networks has grown rapidly. The past 25G and 100G interface networks can no longer meet the current growth of big data services. TOR (Top of Rack) switches, the downlink rate has changed from 25G to 100G or even 200G. At the same time, major switch chip manufacturers have successively launched high-speed switching ASICs that support 56G-PAM4 since 2018. This further promotes the development of the data center switching rate and bandwidt...
