Telnet Binary Transmission

Abstract

This RFC specifies a standard for the ARPA Internet community. Hosts on the ARPA Internet are expected to adopt and implement this standard.

TNVIP Protocol

“…-the Binary Transmission option [5], when the terminal emulation uses a 8 binary bits set of characters,…”

TN3270 Enhancements

“…Note that while they are not explicitly negotiated, the equivalent of the Telnet Binary Transmission Option [3] and the Telnet End of Record Option [4] is implied in the negotiation of the TN3270E Option. That is, a party to the negotiation that agrees to support TN3270E is automatically required to support bi-directional binary and EOR transmissions.…”

“…Currently, support for 3270 terminal emulation over Telnet is accomplished by the de facto standard of negotiating three separate Telnet Options -Terminal-Type [2], Binary Transmission [3], and End of Record [4]. Note that there is no RFC that specifies this negotiation as a standard.…”

Telnet X.3 PAD option

“…Note the interaction with the TRANSMIT-BINARY Telnet option [5]. If the host has said WILL TRANSMIT-BINARY, then CR has no special meaning on output; it always stands for the single character CR regardless of this parameter's value.…”