Huawei CE5850-48T4S2Q-EI provides 48 * GE line-speed ports plus 4 * 10 GE and 2 * 40G upstream ports for stacking up to 16 switches. 10 GE and 40G ports enable creation of a non-blocking stack that can extend across geographical distances between data centers. Using the Huawei VRP8 software platform, CE5800 switches support Transparent Interconnection of Lots of Links (TRILL) and have a high stacking capability (up to 16-member switches in a stack system). In addition, the airflow direction (front-to-back or back-to-front) can be changed. CE5800 switches can work with CE12800 switches to build an elastic, virtualized, high-quality fabric that meets the requirements of cloud-computing data centers. CE5800 switches provide high-density GE access to help enterprises build a scalable data center network platform for cloud computing. They can also be used as aggregation or access switches for enterprise campus networks.