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Inferences drawn from GJN Case Study

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Inferences drawn from GJN Case Study

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  1. Batch Name: EPGP-EG 2013-14 Course Name : IT Networking Case name: Grand Junction Networks (GJN) Group Number: 8 Group Members: 1) Ayan Mukherjee (EG2013-08) 2) Kolhe Pravin Shivaji (EG2013-17) 3) Naresh Kumar Bairwa (EG2013-26) 4) Shaikh Owais Aslam (EG2013-35)

  2. Inferences drawn from GJN Case Study • Even though the experts were reluctant to see the potential in Ethernet, the Charney’s team realized Fast Ethernet as breakthrough technology. • They anticipated the business opportunity in the switch segment with 10 fold increase in the speed. • They predicted that the technology would be cheap and it would integrate different speeds as against existing switches. • As a new strategy they decided to develop market favouring standard based technology, which would be extension of the existing one.

  3. Inferences drawn from GJN Case Study • Even though dominant market leaders threatened them to back-off, they were stuck with their concept of Fast Ethernet technology. • To overcome the threat, consortium was formed with aim of having major market share without disclosing the technical know how with the collaborative organizations • Solutions provided by the GJN consortium was in the best interest of industry and customers. • Finally GJN consortium was successful in convening the IEEE for a meeting on amendments in Standard 802.3.

  4. Exhibit 1. History of Ethernet & Envisioning of GJN • 10 Mbps Ethernet was invented in 1973 by Bob Metcalfe & David Boggs & standardized as Version 1.0 & 2.0 (1980 &1982 respectively) by DIX. • ANSI & IEEE adopted “Standard 802.3 CSMS/CD” protocol in 1983 which was based on MAC Layer & the Physical Layer. • Ethernet was difficult to manage & despite a huge market share (80-90%) for LAN, bandwidth of only 10-Mbps resulted in low revenues. • In 1990, Kalpana had introduced multiple-port Ethernet switch, which Charney’s GJN team foresaw could integrate 10 & 100 Mbps ports. • GJN was envisioned in 1991 to create “Fast Ethernet” that would be 10 times faster by making changes in the Physical layer only.

  5. Exhibit 2. Formation & Challenges of GJN • In 1992, GJN was officially formed by Charney’s team & they announced “Fast Ethernet” concept on 28 Sept 1992 trying to capture the first mover advantage. • HP’s DPAM technology was capable of managing multimedia applications, was a deterministic network with less wait time, and supported backward compatibility. • As it was HP proprietary & it required changes in MAC layer, which was not in best interest of industry & customers. • To compete with HP’s DPAM & to avoid major changes in Standards, 3Com, SynOptics, Sun Microsystems & GJN collaborated suggesting changes in physical layer only. • In 1992, IEEE 802.3 meeting was called to discuss suggestions proposed by GJN Team.

  6. Contact: - Pravin Kolhe, Executive Engineer Water Resources Department, Government of Maharashtra Email:- pravinkolhe82@gmail.com www.pravinkolhe.com PPT downloaded from www.pravinkolhe.com

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