Although 40G QSFP+ and 100G QSFP28 are widely used, most data center networks have not replaced all 10G equipment with 40G or 100G equipment. On the contrary, in most cases, 10G, 40G, and 100G will coexist in the same network. So how to deploy 10G/40G and 100G in the same network?
40G QSFP+ to 10G+
As the following figure, the upgraded 40G switch needs to use 1×24 core to 3×8 core MTP trunk cables to connect with the existing 10G server. On the switch, the 24-core fiber panel can be connected to 24-core optical fiber cables and supports three 40G ports. In the server rack, each 40G port can realize a 10G LC connection to facilitate the deployment of servers.