Nowadays the utilization efficiency of network resources is highly valued to achieve low capex and opex. And also the DCI network configuration should be more and more flexible to support the rapid emerging new service.
Huawei provide SDN based Agile TE/GRE DCI solution to confront such challenges.

AR G3 series support built-in AC(Access Controller) function

The S5720I-SI switch has an extended temperature range and can work in harsh outdoor environments. The S5720I-SI supports:

which frequency bands are used by 802.11 standard?

By the end of 2018, the number of Huawei SDN cases reached 650+.