WAN Optimisation (WANop) is a technology that uses a number of techniques to streamline WAN links and increase data transfer efficiencies. The common metrics used to define these potential efficiency savings are throughput, bandwidth requirements, latency, protocol optimisation, and congestion. The techniques employed may include traffic shaping, latency control, forward proxy caching, protocol spoofing, protocol/application categorisation and prioritisation, byte caching (deduplication), and compression.