NAME

       libvdeplug_vdesl - vdesl vdeplug module: ethernet over serial link

SYNOPSIS

       libvdeplug_vdesl.so

DESCRIPTION

       This libvdeplug module creates point-to-point virtual ethernet networks over serial links.

       This  module  of  libvdeplug4  can be used in any program supporting vde like vde_plug, vdens, kvm, qemu,
       user-mode-linux and virtualbox.

       The vde_plug_url syntax of this module is the following:

       vdesl://device_path [ [ OPTION [ /OPTION]...] ]

OPTIONS

       speed=baudrate
              Set the baud rate of the serial link. This plugin supports the following baud rates: 9600,  19200,
              38400,  57600, 115200, 230400, 460800, 500000, 576000, 921600, 1000000, 1152000, 1500000, 2000000,
              2500000, 3000000, 3500000, 4000000. High baud rates may not be supported by the uart  hardware  or
              could  provide  an unreliable service due to communication errors. In order to achieve high speeds
              the cables should be short and properly shielded from electro-magnetic noise.

EXAMPLES

       Scenario: two hosts connected by a serial line. e.g.: RS-232 serial  ports  connected  by  a  null  modem
       cable,  USB-ttl cables or USB-FTDI boards or UART pins of System-on-Chip point-to-point connected so that
       the RXD on one end is connected to TXD on the other and viceversa.

       In the following we use the device /dev/ttyAMA0, this may be changed to address the actual  device  (e.g.
       /dev/ttyS0,  /dev/ttyS1,  /dev/ttyUSB0,  /dev/ttyACM0...).  No other processes should be using the serial
       port (e.g. no getty-login process should be active on it).

       The following command (on both hosts) creates two vde namespaces connected by  a  virtual  point-to-point
       ethernet network.

           vdens vdesl:///dev/ttyAMA0

       Run  the  following command on both hosts to create a virtual interface named vdesl0 on each end. The two
       interfaces are connected by a 4Mbaud link.

           sudo vde_plug -d tap://vdesl0 vdesl:///dev/ttyAMA0[speed=4000000]

NOTICE

       Virtual Distributed Ethernet is not related in any way with  www.vde.com  ("Verband  der  Elektrotechnik,
       Elektronik und Informationstechnik" i.e. the German "Association for Electrical, Electronic & Information
       Technologies").

SEE ALSO

       vde_plug(1), vdens(1)

AUTHOR

       VirtualSquare. Project leader: Renzo Davoli