Quidway S5300 series gigabit switches (hereinafter referred to as the S5300s) are new generation Ethernet gigabit switches developed by Huawei to meet the requirements for high-bandwidth access and Ethernet multi- service convergence, providing powerful Ethernet functions for carriers and enterprise customers. Based on the new generation high-performance hardware and Huawei Versatile Routing Platform (VRP) software, the S5300 features large capacity and gigabit interfaces of high density, provides 10G uplinks, meeting customers’ requirements for the 1G and 10G uplink devices of high density. The S5300 can meet the requirements of multiple scenarios such as service convergence on campus networks and intranets, the access to the IDC at a rate of 1000 Mbit/s, and the access to computers at a rate of 1000 Mbit/s on intranets. The S5300 is a case-shaped device with a chassis of 1 U high. The S5300 series are classified into SI (standard) and EI (enhanced) models. The S5300 of the SI version supports Layer 2 functions and basic Layer 3 functions, and the S5300 of the EI version supports complicated routing protocols and rich service features. The models of the S5300 consist of S5324TP-SI, S5328C-SI, S5328C-EI, S5328C-EI-24S, S5348TP-SI, S5352C-SI, S5352C-EI, S5324TP- PWR-SI, S5328C-PWR-SI, S5328C-PWR-EI, S5348TP-PWR-SI, S5352C-PWR-SI, and S5352C-PWR-EI.