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MLTNET: A "Multi Telnet" Subsystem for Tenex (RFC0339)

IP.com Disclosure Number: IPCOM000003530D
Original Publication Date: 1972-May-05
Included in the Prior Art Database: 2000-Sep-13
Document File: 4 page(s) / 8K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

R. Thomas: AUTHOR

Abstract

MLTNET is a TELNET-like facility for TENEX which enables a user to control a number of jobs, running on different ARPANET hosts. It multiplexes the user's local console among the remote jobs. MLTNET is useful in applications which require coordinated behavior of several network hosts. In particular, we have found it helpful in debugging programs which make use of the network. The MLTNET program is designed to be easy to use and, while used in remote mode, to be as transparent as possible to the user. It is somewhat less sophisticated than the TENEX user-TELNET program. MLTNET is currently a subsystem on the BBN- TENEX host.

This text was extracted from a ASCII Text document.
This is the abbreviated version, containing approximately 39% of the total text.

NETWORK WORKING GROUP R.Thomas

REQUEST FOR COMMENTS #339 BBN

N.I.C. #9932 May 5,1972

MLTNET - A "MULTI-TELNET" SUBSYSTEM FOR TENEX

INTRODUCTION

MLTNET is a TELNET-like facility for TENEX which enables a user to

control a number of jobs, running on different ARPANET hosts. It

multiplexes the user's local console among the remote jobs. MLTNET is

useful in applications which require coordinated behavior of several

network hosts. In particular, we have found it helpful in debugging

programs which make use of the network. The MLTNET program is designed

to be easy to use and, while used in remote mode, to be as transparent

as possible to the user. It is somewhat less sophisticated than the

TENEX user-TELNET program. MLTNET is currently a subsystem on the BBN-

TENEX host.

USING MLTNET

MLTNET operates in two modes:

1. Local Mode Operation:

When in local mode MLTNET interprets input types by the

user as commands to it. Commands consist of a mnemonic

command name followed by zero or more parameters.

Included in the commands recognized by MLTNET are ones

which enable the user to associate a name of his choice

with a connection to an ARPANET site, to establish a

connection with a named site, to list the network status

as seen from the user's TENEX etc.

2. Remote Mode Operation

When operating in remote mode MLTNET makes the user's

console appear to be directly connected to a remote

site. It transmits input typed by the user to the

remote site and prints output recieved from the remote

site. Output received from a remote site while the user

is in local mode or is interacting with another remote

site is buffered for the user by MLTNET.

MLTNET has been designed to be transparent to the user

while operating in remote mode. In particular, when in

remote mode it transmits user-types ^C (CONTROL-C, the

TENEX "attention" character) and ^T (CONTROL-T, the

TENEX "time used query" character) to the remote site.

When in local mode ^C and ^T have their usual TENEX

effect.

Occasinally a user may find it necessary to modify the

characteristics of a connection to a particular remote

site. For example, he may want to have MLTNET echo

typed input as it is transmitted. Or, he may be using a

remote host which requires both upper and lower case

characters from a local terminal which has only upper

case; in such a case he would want MLTNET to transmit

upper and lower case as appropriate. In remote mode

operation MLTNET recognizes "!" as an escape character

and interprets the character following it as a command

to change the characterristics of the connection currently

in use. Commands recognized by MLTNET in remote mode

are summe...