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(third layer of the OSI reference model)

См. также в других словарях:

  • network layer —    The third of seven layers of the OSI Reference Model for computerto computer communications. The network layer defines protocols for data routing to ensure that the information arrives at the correct destination node and manages communications …   Dictionary of networking

  • Telecommunication — A parabolic satellite communication antenna at the biggest facility for satellite communication in Raisting, Bavaria, Germany …   Wikipedia

  • Protocol stack — The protocol stack is an implementation of a computer networking protocol suite. The terms are often used interchangeably. Strictly speaking, the suite is the definition of the protocols, and the stack is the software implementation of them.[1]… …   Wikipedia

  • X.25 — is an ITU T standard network layer protocol for packet switched wide area network (WAN) communication. An X.25 WAN consists of packet switching exchange (PSE) nodes as the networking hardware, and leased lines, Plain old telephone service… …   Wikipedia

  • Computer network — Computer networks redirects here. For the periodical, see Computer Networks (journal). Datacom redirects here. For other uses, see Datacom (disambiguation). Internet map. The Internet is a global system of interconnected computer networks that… …   Wikipedia

  • Firewall (computing) — This article is about the network security device. For other uses, see Firewall. An illustration of where a firewall would be located in a network …   Wikipedia

  • computer science — computer scientist. the science that deals with the theory and methods of processing information in digital computers, the design of computer hardware and software, and the applications of computers. [1970 75] * * * Study of computers, their… …   Universalium

  • Network address translation — NAT redirects here. For other uses, see Nat (disambiguation). In computer networking, network address translation (NAT) is the process of modifying IP address information in IP packet headers while in transit across a traffic routing device. The… …   Wikipedia

  • Time-division multiplexing — (TDM) is a type of digital or (rarely) analog multiplexing in which two or more signals or bit streams are transferred apparently simultaneously as sub channels in one communication channel, but are physically taking turns on the channel. The… …   Wikipedia

  • NSA encryption systems — The National Security Agency took over responsibility for all U.S. Government encryption systems when it was formed in 1952. The technical details of most NSA approved systems are still classified, but much more about its early systems has become …   Wikipedia

  • Communications protocol — For other senses of this word, see Protocol. A communications protocol is a system of digital message formats and rules for exchanging those messages in or between computing systems and in telecommunications. A protocol may have a formal… …   Wikipedia

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