05021949 is referenced by 275 patents and cites 5 patents.

The invention disclosed herein provides the basic operating capabilities of SNA data communications for host based application-to-application sessions across a packet switched network such as the Defense Data Network (DDN). The problem that is presented by the integration of these two technologies is that SNA is a connection oriented technology and DDN is a connectionless technology that requires an Internetting Protocol (IP) header on all information transmitted through the network and across multiple networks. One of the concepts of the invention is the definition of a localized SNA network to each SNA host by the channel attached Front End Processors (FEPs). These FEPs present an SNA PU4 definition to the host to allow it to carry out regular SNA sessions over the packet switched network to another host through its own respective FEP. The two FEPs working together imbed the SNA protocols in the IP datagrams and provide the proper SNA connections and control. This technique also allowed any host to access any other host for which it has authorization.

Title
Method and apparatus for linking an SNA host to a remote SNA host over a packet switched communications network
Application Number
7/161647
Publication Number
5021949
Application Date
February 29, 1988
Publication Date
June 4, 1991
Inventor
Ted P Smith
Frederick
MD, US
Richard M Morten
Gaithersburg
MD, US
Agent
John E Hoel
Assignee
International Business Machines Corporation
NY, US
IPC
H04J 3/24
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