As the leader of China's communication industry, Huawei's participation in this exhibition is particularly quiet, which may be related to the previous Sino-US trade war. Huawei has just demonstrated the concept of all-cloud to build a new transmission network, pushing the speed to the limit, and at the same time demonstrated the architecture of 25GWDM-PON transmission access network. People think that WDM-PON technology is the key to solve the last mile of 5G. Whoever can effectively integrate active and passive devices can break the bottleneck of commercialization of WDM-PON.
Huawei's strong competitor, Cisco, which has a huge advantage in the US market, also demonstrated in detail in the field of 5G data communication this year. The 5G optical equipment standard promoted by Cisco is QSFP-DD, which provides the possibility of supporting 400G links in a single module through the strong aggregation ability of dual density. The demonstration shows 32 QSFP-DD switches used as data center switches. Such a high-density front panel can maintain the stability of temperature and transmission, which makes people admire Cisco in terms of equipment and transmission.
Nokia, an old European equipment manufacturer, also brought the 1830 series products specially designed for 5G. Among them, the 1830PSE-3 platform is mainly a data exchange device for data centers, with extremely low heat dissipation and power consumption. Customers can simply reach the transmission speed of 100/200 g, but the highest speed of the distributor reaches 400G. In addition, 1830MobileTransport uses complex algorithms considering the extremely high requirements for delay in the 5G environment.
Xu Chuang, the domestic leader of optical modules in the data center market, released QSFP28-round ER4 and OSFP and QSFP-DD supporting 400G transmission, with the upper limit of transmission from 100G. Whether Google, which prefers OSFP standard, or Cisco, which supports QSFP-DD, Xu Chuang can provide corresponding products. At the same time, there is only one domestic enterprise that can introduce two packaging standards of 400G, and it is worthy of being the first technological brother of domestic high-speed active equipment.