04893307 is referenced by 167 patents and cites 2 patents.

The invention disclosed herein provides the basic operation capabilities of SNA data communications for host-to-remote terminal 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 connctionless 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 a SNA LU2 definition to the host to allow it to carry out regular SNA sessions over the packet switched network to remote terminal users. The second concept is providing primary SNA PU5 support, in the Remote Access Facilities (RAF). This enables each RAF to control all the SNA terminals and devices attached to it as a separate network. The RAF and the FEP working together imbed the SNA protocols in the IP datagrams and provide the proper SNA connections and control. This technique allows any terminal to access any host for which it has authorization.

Title
Method and apparatus for linking SNA terminals to an SNA host over a packet switched communications network
Application Number
7/161545
Publication Number
4893307
Application Date
February 29, 1988
Publication Date
January 9, 1990
Inventor
Michael P Marsili
Middletown
MD, US
Richard M Morten
Gaithersburg
MD, US
Douglas B McKay
Potomac
MD, US
Agent
John E Hoel
Assignee
International Business Machines Corporation
NY, US
IPC
H04J 3/26
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