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Remote Controlled Transmission and Echoing Telnet option (RFC0726)

IP.com Disclosure Number: IPCOM000003772D
Original Publication Date: 1977-Mar-01
Included in the Prior Art Database: 2019-Feb-15
Document File: 16 page(s) / 21K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

J. Postel: AUTHOR [+1]

Related Documents

10.17487/RFC0726: DOI

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 13% of the total text.

NWG/RFC# 726 JBP DHC 8-MAR-77 08:29 39237 Remote Controlled Transmission & Echoing Telnet Option

Network Working Group Jon Postel & Dave Crocker Request for Comments: 726 SRI-ARC UC Irvine NIC: 39237 8 March 1977

Remote Controlled Transmssion and Echoing Telnet Option

1

1. Command name and code: 2

RCTE 7 2a

2. Command meanings: 3

IAC WILL RCTE 3a

The sender of this command REQUESTS or AGREES to use the RCTE option, and will send instructions for controlling the other side’s terminal printer. 3a1

IAC WON’T RCTE 3b

The sender of this option REFUSES to send instructions for controlling the other side’s terminal printer. 3b1

IAC DO RCTE 3c

The sender REQUEST or AGREES to have the other side (sender of WILL RCTE) issue commands which will control his (sender of the DO) output to the terminal printer. 3c1

IAC DON’T RCTE 3d

The sender of this command REFUSES to allow the other side to control his (sender of DON’T) terminal printer. 3d1

IAC SB RCTE <cmd> [BC1 BC2] [TC1 TC2] IAC SE 3e

where: 3e1

<cmd> is one 8-bit byte having the following flags (bits are counted from the right): 3e1a

[page 1]

NWG/RFC# 726 JBP DHC 8-MAR-77 08:29 39237 Remote Controlled Transmission & Echoing Telnet Option

Bit Meaning 3e1b

0 0 = Ignore all other bits in this byte and repeat the last <cmd> that was sent. Equals a ’continue what you have been doing’. 1 = Perform actions as indicated by other bits in this byte. 3e1c

1 0 = Print (echo) break character 1 = Skip (don’t echo) break character 3e1d

2 0 = Print (echo) text up to break character 1 = Skip (don’t echo) text up to break character 3e1e

3 0 = Continue using same classes of break characters. 1 = The two 8-bit bytes following this byte contain flags for the new break classes. 3e1f

4 0 = Continue using same classes of transmit characters. 1 = Reset transmit classes according to the two bytes following 1) the break classes bytes, if the break classes are also being reset, or 2) this byte, if the break classes are NOT also being reset. 3e1g

Value (decimal) of the <cmd> byte and its meaning: 3e1h

0 = Continue what you have been doing 3e1i

Even numbers greater than zero (i.e. numbers with the right most bit off) are in error and should be interpreted as equal to zero. When the <cmd> is an even number greater than zero, classes bytes TC1 & TC2 and/or BC1 & BC2 must not be sent. 3e1j

1 = Print (echo) up to AND INCLUDING break character 3e1k

3 = Print up to break character and SKIP (don’t echo) break character 3e1l

5 = Skip text (don’t echo) up to break character, but PRINT break character 3e1m

7 = Skip up to and including break character 3e1n

Add one of the previous non-zero values to one of the following values, to get the total decimal value for

[page 2]

NWG/RFC# 726 JBP DHC 8-MAR-77 08:29 39237 Remote Controlled Transmission & Echoing Telnet Option

the byte (Note that classes may not be reset without also resetting the printing action; so an odd number is guaranteed): 3e1o

8 = Set break classes (using the next two bytes [BC...

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