Editing IBM 3270 (section)

==Telnet 3270==
Telnet 3270, or '''tn3270''' describes both the process of sending and receiving 3270 data streams using the [[telnet]] protocol and the software that emulates a 3270 class terminal that communicates using that process.{{sfn|RFC 2355}}{{sfn|RFC 6270}} tn3270 allows a 3270 [[terminal emulator]] to communicate over a [[Internet protocol suite|TCP/IP]] network instead of an [[System network architecture|SNA]] network. Telnet 3270 can be used for either terminal or print connections. Standard [[telnet]] clients cannot be used as a substitute for tn3270 clients, as they use fundamentally different techniques for exchanging data.

TN3270 is typically deployed for online [[IBM mainframe]] application access via [[Virtual Telecommunications Access Method|VTAM]].