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Understanding the Network: A Practical Guide to Internetworking by Martin J. Michael

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Cisco Router Hardware

Cisco Systems began as a small startup in a San Francisco living room in 1984. Its founders were researchers at Stanford University who devised a "gateway server" to connect computers from different departments. At this time, Transmission Control Protocol (TCP)/IP was beginning to enter the networking community, and this husband and wife team (Len and Sandy Bosack) decided to take a chance and make a commercial version of their server. Cisco Systems'first generation of products were known as gateway servers, and the product line had four iterations:

  • Advanced Gateway Server (AGS)

  • Mid-Range Gateway Server (MGS)

  • Integrated Gateway Server (IGS)

  • Advanced Gateway Server Plus (AGS+)

These servers provided basic LAN-to-WAN ...

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