Ipsilon's General Switch Management Protocol Specification Version 1.1
RFC 1987

Document Type RFC - Informational (August 1996; No errata)
Updated by RFC 2297
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Last updated 2013-03-02
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Network Working Group                                P. Newman, Ipsilon
Request for Comments: 1987                           W. Edwards, Sprint
Category: Informational                              R. Hinden, Ipsilon
                                                    E. Hoffman, Ipsilon
                                                 F. Ching Liaw, Ipsilon
                                                       T. Lyon, Ipsilon
                                                   G. Minshall, Ipsilon
                                                            August 1996

       Ipsilon's General Switch Management Protocol Specification
                              Version 1.1

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

   The General Switch Management Protocol (GSMP), is a general purpose
   protocol to control an ATM switch. GSMP allows a controller to
   establish and release connections across the switch; add and delete
   leaves on a point-to-multipoint connection; manage switch ports;
   request configuration information; and request statistics.

Newman, et. al.              Informational                      [Page 1]
RFC 1987              GSMP Protocol Specification            August 1996

Table of Contents

   1. Introduction....................................................3

   2. GSMP Packet Format..............................................4

   3. Connection Management Messages..................................7
      3.1 Add Branch Message.........................................11
      3.2 Delete Branch Message......................................12
      3.3 Delete Tree Message........................................13
      3.4 Verify Tree Message........................................13
      3.5 Delete All Message.........................................14
      3.6 Move Branch Message........................................14

   4. Port Management Message........................................16

   5. Statistics Messages............................................20
      5.1 VC Activity Message........................................20
      5.2 Port and VC Statistics Messages............................23
          5.2.1 Port Statistics Message..............................26
          5.2.2 VC Statistics Message................................26

   6. Configuration..................................................26
      6.1 Switch Configuration Message...............................27
      6.2 Port Configuration Message.................................28
      6.3 All Ports Configuration Message............................32

   7. Event Messages.................................................33
      7.1 Port Up Message............................................35
      7.2 Port Down Message..........................................35
      7.3 Invalid VPI/VCI Message....................................35
      7.4 New Port Message...........................................35
      7.5 Dead Port Message..........................................36

   8. Adjacency Protocol.............................................36
      8.1 Packet Format..............................................36
      8.2 Procedure..................................................39

   9. Failure Response Messages......................................41

   References........................................................43
   Security Considerations...........................................43
   Authors' Addresses................................................43

Newman, et. al.              Informational                      [Page 2]
RFC 1987              GSMP Protocol Specification            August 1996

1. Introduction

   The General Switch Management Protocol (GSMP), is a general purpose
   protocol to control an ATM switch. GSMP allows a controller to
   establish and release connections across the switch; add and delete
   leaves on a point-to-multipoint connection; manage switch ports;
   request configuration information; and request statistics. It also
   allows the switch to inform the controller of asynchronous events
   such as a link going down. GSMP runs across an ATM link connecting
   the controller to the switch, on a control connection (virtual
   channel) established at initialization. The GSMP protocol is
   asymmetric, the controller being the master and the switch being the
   slave. Multiple switches may be controlled by a single controller
   using multiple instantiations of the protocol over separate control
   connections.

   A switch is assumed to contain multiple "ports". Each port is a
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