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TLS Transport Layer Security [2] SSL Secure Socket Tunneling [2] AFP Apple Filing Protocol [2] Independent Computing Architecture , the Citrix system core protocol; Lightweight Presentation Protocol (LPP) [2] NetWare Core Protocol (NCP) Network Data Representation (NDR) [2]
The link layer corresponds to the OSI data link layer and may include similar functions as the physical layer, as well as some protocols of the OSI's network layer. These comparisons are based on the original seven-layer protocol model as defined in ISO 7498, rather than refinements in the internal organization of the network layer.
Layer Protocol data unit (PDU) Function [3] Host layers 7 Application: Data: High-level protocols such as for resource sharing or remote file access, e.g. HTTP. 6 Presentation: Translation of data between a networking service and an application; including character encoding, data compression and encryption/decryption: 5 Session
Encapsulating Security Payload: RFC 4303: 0x33 51 AH Authentication Header: RFC 4302: 0x34 52 I-NLSP Integrated Net Layer Security Protocol: TUBA 0x35 53 SwIPe SwIPe: RFC 5237: 0x36 54 NARP NBMA Address Resolution Protocol: RFC 1735: 0x37 55 MOBILE IP Mobility (Min Encap) RFC 2004: 0x38 56 TLSP Transport Layer Security Protocol (using Kryptonet ...
The services and protocols specified in IEEE 802 map to the lower two layers (data link and physical) of the seven-layer Open Systems Interconnection (OSI) networking reference model. IEEE 802 divides the OSI data link layer into two sub-layers: logical link control (LLC) and medium access control (MAC), as follows: Data link layer. LLC sublayer
TCP/IP protocol suite or Five-layer Internet model (Forouzan, [59] Kurose [60]) TCP/IP model (Stallings [61]) OSI model (ISO/IEC 7498-1:1994 [62]) Three layers: Four layers: Four layers: Four+one layers: Five layers: Five layers: Five layers: Seven layers: Application/ Process Application Application Application Application Application ...
The link layer is the lowest layer in the TCP/IP model. It is also referred to as the network interface layer and mostly equivalent to the data link layer plus physical layer in OSI. This particular layer has several unique security vulnerabilities that can be exploited by a determined adversary.
The network layer provides the means of transferring variable-length network packets from a source to a destination host via one or more networks. Within the service layering semantics of the OSI (Open Systems Interconnection) network architecture, the network layer responds to service requests from the transport layer and issues service requests to the data link layer.