We name Wireless Termination Points (WTPs) the physical
points of attachment in the RAN (e.g. WiFi Access Points
or LTE eNodeBs) supporting virtualized radio processing
capabilities. Conversely, the Click Packet Processors (CPPs)
are the forwarding nodes with computational capacity. These
nodes are essentially programmable switches running an embedded
version of Linux and capable of performing arbitrary
operations on the traffic, e.g. load–balancing, fire walling, deep packet
inspection, etc.