With the rapid promotion and popularization of emerging technologies such as cloud computing, big data, Internet of Things, artificial intelligence, and 5G, the continuous influx of data traffic has prompted major service providers to continuously re-examine the upgrade of data transmission speed in data centers. Data center transmission equipment needs to increase the data transmission speed from the original 10Gbps, 25Gbps to 40Gbps, 100Gbps or even 400Gbps. And because the higher-speed optical Internet will inevitably bring challenges in cost, power consumption, size and other aspects, as a data center system architect must carefully consider to ensure that the best combination choice is made, especially to reduce failure rates and reduce consumption. Performance, improve compatibility, etc., so as to give full play to the performance improvements brought by hardware upgrades. From the aspect of physical connection, Sunco proposes an upgrade plan from 10Gbps/25Gbps to 40G/100Gps:

Solution 1:40G /100G QSFP to 10G/25G 4SFP+ passive copper core high-speed branch cable

One end of the 40G/100G QSFP to 10G/25G 4SFP+ passive copper core high-speed branch cable is connected to the 40G/100G QSFP port of a switch, and the other end is connected to the 4 10G/25G SFP+ ports of a switch to realize short-distance 10G /25G to 40G/100G transmission cost-effective method.

Solution 2:40/100G QSFP to 10G/25G 4SFP+ active branch cable

40G/100G QSFP to 10G/25G 4SFP+ high-speed active optical cable. One end of this optical cable is 40G/100G QSFP interface, and the other end is 4 10G/25G SFP+ interfaces. It can complete 40G/100G equipment and 10G/100G equipment without equipment upgrade. Interconnection of 25G equipment. The cost of 40G QSFP+ active optical cable is lower than 40G QSFP+ optical module, and it has excellent performance of low insertion and low return loss. At the same time, the repeatability and interchangeability of 40G active optical cable are better than 40G QSFP+ optical module.

Solution 3:MPO fiber patch cord

Use two 12-core MPO backbone optical cables for transmission, one end is connected to a cassettes containing two 12-core MPO-LC patch cord, and then connected to 12 10G/25G (SFP+) optical modules through LC duplex patch cord; Connect a 2 to 3 MPO conversion patch coed at one end to convert the 2x12-core optical fiber channel into a 3x8-core optical fiber channel, and then connect to three 40G/100G (QSFP) optical modules to easily complete 10G/25G and 40G/100G equipment The interconnection between. Although this requires adding a patch panel in the data center, it is completely passive: they do not require power, cooling, or UPS backup, which reduces the overall power consumption and cost of the data center. It has been proven to be an ideal solution for 40G/100G Ethernet.