RFC 2106 (rfc2106) - Page 2 of 19

Data Link Switching Remote Access Protocol

RFC 2106                         DLSRAP                    February 1997


2.  Overview

2.1.  DRAP Client/Server Model

      +-----------+              +-----------+       +---------+
      | Mainframe |              | IP Router +- ppp -+ DLSw    |
      +--+--------+              +-----+-----+       | Work    |
         |                             |             | Station |
         |                             |             +---------+
      +--+--+      +-------------+     |
      | FEP +- TR -+ DLSw Router +-- IP Backbone
      +-----+      +-------------+     |
                                       |
                                       |
                                 +-----------+       +---------+
                                 | IP Router +- ppp -+ DLSw    |
                                 +-----+-----+       | Work    |
                                                     | Station |
                                                     +---------+

                           |         DLSw Session          |
                           +-------------------------------+
  Figure 2-1. Running DLSw on a large number of workstations creates a
                         scalability problem.

   Figure 2-1 shows a typical DLSw implementation on a workstation. The
   workstations are connected to the central site DLSw router over the
   IP network.  As the network grows, scalability will become an issue
   as the number of TCP sessions increases due to the growing number of
   workstations.





















Chiang, et. al.              Informational