RFC 1560 (rfc1560) - Page 2 of 7


The MultiProtocol Internet



Alternative Format: Original Text Document



RFC 1560               The MultiProtocol Internet          December 1993


   over different protocols.

   The issue of multiprotocol Internet is multidimensional and should be
   analyzed with respect to two simultaneous principles:

      - It is desirable to have a single protocol stack. The community
        should try to avoid unconstrained proliferation of various
        protocol stacks.

      - In reality there will always be more than one protocol stack.
        Presence of multiple network layers is just one of the
        corollaries of this observation, as even within a single
        protocol stack, forces of evolution of that stack will lead
        to periods of multiple protocols.  We need to develop
        mechanisms that maximize the services that can be provided
        across all the protocol stacks (multiprotocol Internet).

2.  Background and Context

2.1.  The MultiProtocol Evolutionary Process

   In an IAB architectural retreat held in 1991 [Cla91], a dynamic view
   of the process of multiprotocol integration and accommodation was
   described, based on the figure below.

            ---------------             --------------
            !             !             !            !
            !             !             ! Interop-   !
            ! Primary     ! >>>>>>>>>>> ! erability  !>>>>>
            ! Protocol    !             !            !    v
            ! Suite       !             --------------    v
            !             !                               v
            !             !                               v
            !             !             --------------    v
            !             !             !            !    v
            !             ! >>>>>>>>>>> !  Resource  !    v
            !             !             !  Sharing   !>>>>v
            !             !             !            !    v
            ---------------             --------------    v
                  ^                                       v
                  ^      --------------                   v
                  ^      !            !                   v