RFC 1090 (rfc1090) - Page 3 of 4
SMTP on X
Alternative Format: Original Text Document
RFC 1090 SMTP on X.25 February 1989 seconds, the call should be cleared and retried later. 10.2. established After the protocol session is established, the circuit should be cleared if no response is received for 10 minutes. 10.3. closing After the QUIT command is issued, the timeout should be shortened to 20 seconds. This will sometimes cause an ungraceful exit, but this will not affect the SMTP transactions already completed. 10.4. clearing When the X.25 Clear Request packet has been sent, the VC should be timed out in accordance with the X.25 protocol specification. 11. Other features Other features of X.25, such as permanent virtual circuits and D bit selection, are not used. References [1] Postel, J., "Simple Mail Transfer Protocol", RFC 821, USC Information Sciences Institute, August 1982. [2] CCITT Recommendation X.25, "Interface Between Data Terminal Equipment (DTE) and Data Circuit-Terminating Equipment (DCE) for Terminals Operating in the Packet Mode and Connected to Public Data Networks by Dedicated Circuit", International Telegraph and Telephone Consultative Committee, Fascicle VIII.3, Geneva, 1976; amended at Geneva, 1980 and Malaga-Torremolinos, 1984. ("Red Book") Author's Address Robert Ullmann 23A-32 Prime Computer, Inc. Technology Drive Milford, MA 01757 Phone: +1 508 478 8600 x1736 Email: Ariel@Relay.Prime.COM Ullmann
