is an end-to-end solution that is connected using a simplistic to complex network infrastructure. A typical solution spans multiple network layers, ranging from the access layer providing power over Ethernet (PoE) for video cameras, to the data center that provides the centralized network that is used to interconnect all of the components.
With cameras on the edge, the data center infrastructure is made of aggregation switches that are known as leaf switches, and a core switch, which is known as the spine. A small campus network has an aggregation layer, but not a data center or core. The network must be correctly sized in terms of capacity, efficiency, and resilience to effectively resolve the user's business challenges.