TCP/P Protocol Architecture Developed by the US Defense Advanced Research Project Agency (DARPA)for its packet switched network(ARPANe Used by the global Internet It consists of a large collection of protocols that have been issued as Internet standard by the Internet architecture Board (IaB) Checkhttp://www.ietf.org/rfc/rfc2026.txt The TCP /IP protocol architecture organizes the communication task into five relatively independent layers Layer 5: Appliation laer Layer 4: Transport layer or Host to host (tcp belongs to this layer) Layer 3: Internet layer, or Network layer(ip belongs to this layer) Layer 2: Network access layer, or Link layer Layer 1: Physical layer Remark: Each layer can have lots of different protocols 1515 TCP/IP Protocol Architecture • Developed by the US Defense Advanced Research Project Agency (DARPA) for its packet switched network (ARPANET) • Used by the global Internet • It consists of a large collection of protocols that have been issued as Internet standard by the Internet Architecture Board (IAB). — Check http://www.ietf.org/rfc/rfc2026.txt • The TCP/IP protocol architecture organizes the communication task into five relatively independent layers: — Layer 5: Application layer — Layer 4: Transport layer, or Host to host (TCP belongs to this layer) — Layer 3: Internet layer, or Network layer (IP belongs to this layer) — Layer 2: Network access layer, or Link layer — Layer 1: Physical layer • Remark: Each layer can have lots of different protocols!