RFC 1307 (rfc1307) - Page 1 of 13

Dynamically Switched Link Control Protocol

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Network Working Group                                           J. Young
Request for Comments: 1307                                  A. Nicholson
                                                     Cray Research, Inc.
                                                              March 1992


               Dynamically Switched Link Control Protocol

Status of this Memo

   This memo defines an Experimental Protocol for the Internet
   community.  Discussion and suggestions for improvement are requested.
   Please refer to the current edition of the "IAB Official Protocol
   Standards" for the standardization state and status of this protocol.
   Distribution of this memo is unlimited.

Abstract

   This memo describes an experimental protocol developed by a project
   team at Cray Research, Inc., in implementing support for circuit-
   switched T3 services.  The protocol is used for the control of
   network connections external to a host, but known to the host.  It is
   documented here for the benefit of others who may wish to perform
   further research.

   While working with circuit-switched T3 networks, developers at Cray
   Research, Inc., defined a model wherein a host would generate control
   messages for a network switch.  This work is described in RFC 1306,
   "Experiences Supporting By-Request Circuit-Switched T3 Networks".  In
   order to simplify the model it was decided that the inconsistencies
   of switch control should be hidden from the host generating the
   control messages.  To that end, a protocol was defined and
   implemented.  This RFC documents the Dynamically Switched Link
   Control Protocol (DSLCP), which is used for creation and control of
   downstream network links by a host.

1.0  INTRODUCTION

   The Dynamically Switched Link Control Protocol (DSLCP) allows a host
   with knowledge of a special downstream network link to issue messages
   to control the status of that link.

   This document describes the functions of the DSLCP to control
   external network connections.







Young & Nicholson
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