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A comparative study of System Network Architecture Vs Digital Network Architecture

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Author(s): Mukesh Arya | Seema

Journal: International Journal of Computer Science and Management Studies
ISSN 2231-5268

Volume: 11;
Issue: 1;
Start page: 47;
Date: 2011;
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Keywords: sna | dna | hdlc | connectionless network services.

ABSTRACT
The efficient managing system of sources is mandatory for the successful running of any network. Here this paper describes the most popular network architectures one of developed by IBM, System Network Architecture (SNA) and other is Digital Network Architecture (DNA). As we know that the network standards and protocols are needed for the network developers as well as users. Some standards are The IEEE 802.3 standards (The Institute of Electrical and Electronics Engineers 1980) (LAN), IBM Standards SAN (LAN), CCITT Standards (Comité Consultatif International Téléphonique et Télégraphique) (WAN) is the former, but still widely used, name for the ITU (International Telecommunications Union1865), it became a United Nations agency in 1947, a Geneva-based organization that sets international communications standards. SNA Network management is part of Open-Network Architecture (ONA) and is performed centrally by using management platforms such as NetView and others. It is distributed into five functions which are similar to the Open System Interconnection (OSI) model.

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