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CCN NETRJS server messages to remote user (RFC0589)

IP.com Disclosure Number: IPCOM000003665D
Original Publication Date: 1973-Nov-26
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.T. Braden: AUTHOR

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

Received at NIC 14-DEC-73 Robert T. Braden

RFC589 UCLA/CCN

NIC #20268 November 26, 1973

CCN NETRJS SERVER

MESSAGES TO REMOTE USER

A. _ I_ N_ I_ T_ I_ A_ L _ C_ O_ N_ N_ E_ C_ T_ I_ O_ N, _ S_ I_ G_ N_ O_ N, _ A_ N_ D _ S_ I_ G_ N_ O_ F_ F

1. If CCN refuses an ICP to a NETRJS socket, it means either that

there is no free core within the NCP region, or that CCN's

software is crashing.

2. Once ICP is completed, CCN might send the user one of the fol-

lowing messages and close the Telnet connections:

NRJ110I NETRJS PORTS BUSY. TRY LATER

This may be expected occasionally; frequent occurrance

should be reported to CCN User Relations (825-7548), or

to BELL@CCN.

NRJ111I RJS NOT UP, TRY LATER

3. Normally, however, the user will receive a READY message:

NRJ876R CCN NETRJS READY. ENTER SIGNON

If the user sends no operator input for 3 minutes, CCN will

send:

NRJ308R SIGNON TIMEOUT EXCEEDED

NRJ205R NETRJS SESSION TERMINATED

and close the Telnet connection. If he sends an invalid SIG-

NON command, he will receive the message:

NRJ307R INVALID SIGNON, RE-ENTER

NIC #20268

P.2

7 Finally, a valid signon will be acknowledged by RJS with the

message:

RJS750I TERMINAL -termid- HAS SIGNED ONTO RJS

4. If the user terminates the session by entering a SIGNOFF com-

mand, NETRJS will wait until all data transfer has completed

before sending the message:

NRJ205R NETRJS SESSION TERMINATED

and closing the Telnet connection.

B. _ R_ E_ M_ O_ T_ E _ S_ I_ T_ E _ O_ R _ N_ E_ T_ W_ O_ R_ K _ F_ A_ I_ L_ U_ R_ E_ S

1. During data transfer, the user must be reasonably responsive.

If not, CCN will close the data transfer connection and send

the remote operator message:

NRJ504I DATA TRANSFER TIMEOUT FOR THE -device-, -termid-

a) if -device- is PRINTER or PUNCH, user site

stopped accepting bits (sending "allocates")

for over 5 minutes.

b) if -device- is READER, user site left reader

connection open without sending any bits for 5

minutes.

2. During data transfer on the CR connection, CCN may detect an

incorrect header or record, presumably due to user site

software or Network transmission error. The following mes-

sages beginning with the word "BAD" will follow an NRJ512I

message containing the faulty header in hex:

NRJ505I BAD HEADER SEQUENCE...