APPN Implementer's Workshop Closed Pages Document DLSw v2.0 Enhancements
RFC 2166
Document | Type |
RFC - Informational
(June 1997; No errata)
Was draft-rfced-info-bryant (individual)
|
|
---|---|---|---|
Authors | Paul Brittain , David Bryant | ||
Last updated | 2013-03-02 | ||
Stream | Legacy | ||
Formats | plain text html pdf htmlized bibtex | ||
Stream | Legacy state | (None) | |
Consensus Boilerplate | Unknown | ||
RFC Editor Note | (None) | ||
IESG | IESG state | RFC 2166 (Informational) | |
Telechat date | |||
Responsible AD | (None) | ||
Send notices to | (None) |
Network Working Group D. Bryant Request for Comments: 2166 3Com Corp Category: Informational P. Brittain Data Connection Ltd. June 1997 APPN Implementer's Workshop Closed Pages Document DLSw v2.0 Enhancements Status of this Memo This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind. Distribution of this memo is unlimited. Abstract This document specifies - a set of extensions to RFC 1795 designed to improve the scalability of DLSw - clarifications to RFC 1795 in the light of the implementation experience to-date. It is assumed that the reader is familiar with DLSw and RFC 1795. No effort has been made to explain these existing protocols or associated terminology. This document was developed in the DLSw Related Interest Group (RIG) of the APPN Implementers Workshop (AIW). If you would like to participate in future DLSw discussions, please subscribe to the DLSw RIG mailing lists by sending a mail to majordomo@raleigh.ibm.com specifying 'subscribe aiw-dlsw' as the body of the message. Table of Contents 1. INTRODUCTION ................................................ 3 2. HALT REASON CODES............................................ 3 3. SCOPE OF SCALABILITY ENHANCEMENTS............................ 4 4. OVERVIEW OF SCALABILITY ENHANCEMENTS......................... 6 5. MULTICAST GROUPS AND ADDRESSING.............................. 7 5.1 USING MULTICAST GROUPS...................................... 8 5.2 DLSW MULTICAST ADDRESSES.................................... 8 6. DLSW MESSAGE TRANSPORTS...................................... 8 6.1 TCP/IP CONNECTIONS ON DEMAND................................ 9 6.1.1 TCP CONNECTIONS ON DEMAND RACE CONDITIONS................ 9 Bryant & Brittain Informational [Page 1] RFC 2166 APPN Implementer's Workshop June 1997 6.2 SINGLE SESSION TCP/IP CONNECTIONS........................... 9 6.2.1 EXPEDITED SINGLE SESSION TCP/IP CONNECTIONS.............. 10 6.2.1.1 TCP PORT NUMBERS...................................... 10 6.2.1.2 TCP CONNECTION SETUP.................................. 10 6.2.1.3 SINGLE SESSION SETUP RACE CONDITIONS.................. 10 6.2.1.4 TCP CONNECTIONS WITH NON-MULTICAST CAPABLE DLSW PEERS. 11 6.3 UDP DATAGRAMS............................................... 12 6.3.1 VENDOR SPECIFIC FUNCTIONS OVER UDP....................... 12 6.3.2 UNICAST UDP DATAGRAMS.................................... 12 6.3.3 MULTICAST UDP DATAGRAMS.................................. 13 6.4 UNICAST UDP DATAGRAMS IN LIEU OF IP MULTICAST............... 13 6.5 TCP TRANSPORT............................................... 14 7. MIGRATION SUPPORT............................................ 14 7.1 CAPABILITIES EXCHANGE....................................... 14 7.2 CONNECTING TO NON-MULTICAST CAPABLE NODES................... 15 7.3 COMMUNICATING WITH MULTICAST CAPABLE NODES.................. 15 8. SNA SUPPORT.................................................. 16 8.1 ADDRESS RESOLUTION.......................................... 16 8.2 EXPLORER FRAMES............................................. 16 8.3 CIRCUIT SETUP............................................... 17 8.4 EXAMPLE SNA SSP MESSAGE SEQUENCE............................ 17 8.5 UDP RELIABILITY............................................. 19 8.5.1 RETRIES.................................................. 19 9. NETBIOS...................................................... 20 9.1 ADDRESS RESOLUTION.......................................... 21 9.2 EXPLORER FRAMES............................................. 21 9.3 CIRCUIT SETUP............................................... 21 9.4 EXAMPLE NETBIOS SSP MESSAGE SEQUENCE........................ 22 9.5 MULTICAST RELIABILITY AND RETRIES........................... 24 10. SEQUENCING.................................................. 24 11. FRAME FORMATS............................................... 25 11.1 MULTICAST CAPABILITIES CONTROL VECTOR...................... 25 11.1.1 DLSW CAPABILITIES NEGATIVE RESPONSE..................... 26 11.2 UDP PACKETS................................................ 26 11.3 VENDOR SPECIFIC UDP PACKETS................................ 27 12. COMPLIANCE STATEMENT........................................ 28 13. SECURITY CONSIDERATIONS..................................... 29Show full document text