High Availability (HA) - Patented hot standby technology provides data backup and non-stop forwarding on the control plane and data plane. H3C campus switches integrate the multi-ability of AC, SDN, PON and Security. For intelligent ultra-wideband cloud data center, full-scenario data center products and. The H3C S7500X series switch is designed for the next-generation enterprise core networks. It provides the following features: The S12500 switch series includes S12504X-AF, 12508X-AF and S12516X-AF, which meet various port density and performance requirements. The risk was hiding in plain sight: a single networking device with no backup.