Subject: [Detnet-dp-dt] something worth looking at

From: Lou Berger <[email-masked]>
Date: Mon, 18 Jul 2016 19:18:43 +0200

<https://tools.ietf.org/html/rfc3985#section-5.4.1>

        https://tools.ietf.org/html/rfc3985#section-5.4.1

        5.4.1 <https://tools.ietf.org/html/rfc3985#section-5.4.1>. PWE3
        over an IP PSN

   The protocol definition of PWE3 over an IP PSN should employ existing
   IETF protocols where possible.

       +---------------------+              +-------------------------+
       |      Payload        |------------->| Raw payload if possible |
       /=====================\              +-------------------------+
       H Payload Convergence H-----------+->|     Flags, seq #, etc.  |
       H---------------------H          /   +-------------------------+
       H       Timing        H---------/--->|            RTP          |
       H---------------------H        /     +-------------+           |
       H     Sequencing      H----one of    |             |
       \=====================/        \     |             +-----------+
       |  PW Demultiplexer   |---------+--->|     L2TP, MPLS, etc.    |
       +---------------------+              +-------------------------+
       |  PSN Convergence    |------------->|       Not needed        |
       +---------------------+              +-------------------------+
       |        PSN          |------------->|            IP           |
       +---------------------+              +-------------------------+
       |      Data-Link      |------------->|         Data-link       |
       +---------------------+              +-------------------------+
       |       Physical      |------------->|          Physical       |
       +---------------------+              +-------------------------+

                        Figure 10.  PWE3 over an IP PSN