Title: TN3270 Current Practices
Author(s): J. Penner.
Status: INFORMATIONAL
Date: Jan 1994
Length: 24477
This document describes the existing implementation of transferring 3270 display terminal data using currently available telnet capabilities. The name traditionally associated with this implementation is TN3270.
Information is provided to aid in the implementation of TN3270 servers as well as client terminal emulators.
The following areas pertaining to TN3270 implementations are covered in this document:
1. the telnet options negotiated to transition from a NVT ASCII
state to a TN3270 state ready to process incoming 3270 data
stream commands
2. the method for sending and receiving 3270 data
3. the method of handling some special keys known as SYSREQ and
ATTN using current available telnet commands
4. the events that will transition a TN3270 session back to an NVT
session
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