Telnet 3270
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3270ScreenShot.jpg
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TN3270 is the remote-login protocol used by software that emulates the IBM 3270 model of mainframe computer terminal. Most standard telnet clients cannot be used as a substitute for TN3270 clients as they use vastly different protocols and escape sequences; the 3270 terminal also had non-standard keys and keyboard layouts. Instead of TCP/IP, the original IBM 3270 terminals used the SNA protocol.
External links
- Introduction to Telnet 3270 (http://www.cisco.com/univercd/cc/td/doc/cisintwk/dsgngde/tn3270/tndg_c1.htm) from Cisco
- RFC 1041 - Telnet 3270 regime option
- RFC 1576 - TN3270 Current Practices
- RFC 2355 - TN3270 Enhancements