RFC 1001 (rfc1001) - Page 3 of 68

Protocol standard for a NetBIOS service on a TCP/UDP transport: Concepts and methods

RFC 1001                                                      March 1987


                        TABLE OF CONTENTS


1.  STATUS OF THIS MEMO                                             6

2.  ACKNOWLEDGEMENTS                                                6

3.  INTRODUCTION                                                    7

4.  DESIGN PRINCIPLES                                               8
  4.1  PRESERVE NetBIOS SERVICES                                    8
  4.2  USE EXISTING STANDARDS                                       8
  4.3  MINIMIZE OPTIONS                                             8
  4.4  TOLERATE ERRORS AND DISRUPTIONS                              8
  4.5  DO NOT REQUIRE CENTRAL MANAGEMENT                            9
  4.6  ALLOW INTERNET OPERATION                                     9
  4.7  MINIMIZE BROADCAST ACTIVITY                                  9
  4.8  PERMIT IMPLEMENTATION ON EXISTING SYSTEMS                    9
  4.9  REQUIRE ONLY THE MINIMUM NECESSARY TO OPERATE                9
  4.10  MAXIMIZE EFFICIENCY                                        10
  4.11  MINIMIZE NEW INVENTIONS                                    10

5.  OVERVIEW OF NetBIOS                                            10
  5.1  INTERFACE TO APPLICATION PROGRAMS                           10
  5.2  NAME SERVICE                                                11
  5.3  SESSION SERVICE                                             12
  5.4  DATAGRAM SERVICE                                            13
  5.5  MISCELLANEOUS FUNCTIONS                                     14
  5.6  NON-STANDARD EXTENSIONS                                     15

6.  NetBIOS FACILITIES SUPPORTED BY THIS STANDARD                  15

7.  REQUIRED SUPPORTING SERVICE INTERFACES AND DEFINITIONS         15

8.  RELATED PROTOCOLS AND SERVICES                                 16

9.  NetBIOS SCOPE                                                  16

10.  NetBIOS END-NODES                                             16
  10.1  BROADCAST (B) NODES                                        16
  10.2  POINT-TO-POINT (P) NODES                                   16
  10.3  MIXED MODE (M) NODES                                       16

11.  NetBIOS SUPPORT SERVERS                                       18
  11.1  NetBIOS NAME SERVER (NBNS) NODES                           18
     11.1.1  RELATIONSHIP OF THE NBNS TO THE DOMAIN NAME SYSTEM    19
  11.2  NetBIOS DATAGRAM DISTRIBUTION SERVER (NBDD) NODES          19
  11.3  RELATIONSHIP OF NBNS AND NBDD NODES                        20
  11.4  RELATIONSHIP OF NetBIOS SUPPORT SERVERS AND B NODES        20
12.  TOPOLOGIES                                                    20
  12.1  LOCAL                                                      20



NetBIOS Working Group