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VDE_SWITCH(1)		     General Commands Manual		   VDE_SWITCH(1)

NAME
     vde_switch - Virtual Distributed Ethernet switch

SYNOPSIS
     vde_switch [ -hub ] [ -sock commdirpath ] [ -mod octal-mode ] [ -group NAME
     ] [ -tap interface ] [ -daemon ]

DESCRIPTION
     A vde_switch is a virtual switch for the vde architecture.
     A	vde network can include several vde_switches running on different (real)
     computers.  vde_switches can be connected by vde cables (see  vde_plug  (1)
     ).
     Supported architecture for VDE end nodes include: real linux boxes (through
     the tuntap interface), bochs, qemu and MPS virtual machines.
     VDE  is useful to create networks of heterogeneous virtual machines as well
     as as a general tunneling tool -- all the ethernet based protocols work  by
     this  kind  of tunnel -- and also as a tool for mobility.	In fact VDE cre-
     ates an overlay network where users can keep their IP addresses despite  of
     the change of IP addresses on the interfaces.

     vde_switch  needs	root  privileges  to open a tap interface, can be run by
     users when no -tap option is specified.

     vde-2 has several features: VLAN, Fast Spanning Tree Protocol, command line
     management (on console for foreground switches, on a  terminal  for  daemo-
     nized switches).  If a vde_switch run in foreground mode simply type return
     to have the prompt.  For daemons there is the -M option to specify the man-
     agement  socket.  Unixterm  is the tool to start a terminal for the manage-
     ment.  Type "help" at the prompt for a list of possible options.

OPTIONS
     -hub   turn off the switch engine. It operates as a hub.

     -sock commdirpath
	    specify the directory when comm socket  are  created.   The  default
	    value is "/tmp/vde.ctl"

     -mod octalmode
	    specify the octal permissions for the comm sockets.

     -group NAME
	    specify  the  group owner for the comm socket.  The default value is
	    the current user's primary group

     -tap interface
	    connect the specified tuntap interface  to	this  vde_switch  (needs
	    root  privileges)  It is possible to specify several tap interfaces,
	    comma separated.

     -daemon
	    Run as a daemon. Use syslog for logging.

     -f rcfile
	    rc file to set the initial switch configuration. This  rc  file  has
	    the same syntax of the command line interface.

     -nostdin
	    Allow stdin to be closed.

     -h     help. Please use it for a more complete list of options.  vde_switch
	    is a modular program, options vary depending of the compiled-in mod-
	    ules.

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 Technolo-
     gies").

SEE ALSO
     vde_plug(1), vde_plug2tap(1), dpipe(1),

AUTHOR
     VDE is a project by Renzo Davoli <renzo@cs.unibo.it>
     VDE started as an enhancement of uml_switch by Jeff Dike and others.  VDE-2
     has been almost completely rewritten but maybe some  statements  come  from
     the historical source. So, some copyright and thanks also for Dike&Co.

Virtual Distributed Ethernet	December 6, 2006		   VDE_SWITCH(1)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=vde_switch&sektion=1&manpath=FreeBSD+Ports+15.1.quarterly>

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