GN, is still under research and construction. Service Delivery Platforms 6.3.2.2.1 Differences and Relations between Cognition and Perception Subtle are the differences between cognition and perception, and this chapter focuses on the deliberated ones to delve into the concept of Cognitive Networks. From the perspective of processes and outcomes, perception focuses more on outcomes, while cognition more on an integrated process. Specifically, perception concentrates more on a series of approaches, including packet capturing, flow ana- lyzing, resource distributing, business recognizing, and SO forth, in order to more efficiently guarantee managements of resources, performance, SLA, and QoS. Compared to perception, cognition is a kind of deeper perception from assorted layers of the network model through approaches of flow or packet cognition, and SO on. Cognition aims at not only awareness of business for management, but also resource distribution, business recognition, performance guarantees; thus, it enables operators more flexibly and smoothly to deploy, manage, detect, track, update, and amend the detailed network status. In the foreseen future, with the existence and development of Cognitive Networks, flows and protocols can be detailed tracked, parsed and classified, and various types of packets, including SIP packets, MPLS packets, RTP packets, and RTSP packets can be clearly recognized and classified to be routed, transferred or exchanged. Particular networks for multimedia transpor- tation or QoS guarantees can also be logically divided from the whole network to be managed and controlled separately and flexibly. From the perspective of depth of perception, cognition is a kind of deeper per- ception with a wider scope of perception and also a deeper understanding of net- work status. The original meaning of perception mainly focuses on the recognizing and parsing of packets, flows and protocols, in order to accurately recognize busi- nesses and efficiently control the actual operations. However, cognition