VDEQ
Section: User Commands (1)
Updated: December 6, 2006
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NAME
vdeq - Virtual Distributed Ethernet wrapper for QEMU/KVM virtual machines
SYNOPSIS
vdeq
qemu
[
--mod
octalmode
]
QEMU_OPTIONS
-net vde[,vlan=n][,sock=socketpath][,port=n]
QEMU_OPTIONS
vdeq
kvm
[
--mod
octalmode
]
KVM_OPTIONS
-net vde[,vlan=n][,sock=socketpath][,port=n]
KVM_OPTIONS
vde{
qemu_name}
[
--mod
octalmode
]
QEMU_OPTIONS
-net vde[,vlan=n][,sock=socketpath][,port=n]
QEMU_OPTIONS
OLD SYNOPSIS
vdeq
qemu
[
--mod
octalmode
]
[
-sock
socketpath
[
,socketpath
[
,...
]
]
]
[ qemu_args ]
vde{
qemu_name}
[
-sock
socketpath
[
,socketpath
[
,...
]
]
]
[ qemu_args ]
DESCRIPTION
vdeq
is a wrapper to start a QEMU/KVM virtual machine connected to a VDE network.
It uses the qemu/kvm
-tun-fd parameter to set up the connection with
a vde_switch.
The command
-
vdeq qemu -b c -hda=sampledisk
starts a qemu machine which boots from the sampledisk image and
has a ne2000 ethernet interface connected to the standard vde_switch.
The command
-
vdeq kvm -b c -hda=sampledisk
starts a kvm machine which boots from the sampledisk image and
has a ne2000 ethernet interface connected to the standard vde_switch.
It is also possible to create symbolic links to the vdeq executable to have
a simpler command. If the link has a name that begins with vde the remaining part
of the name is taken as the qemu command. For example if vdeq is linked to
vdeqemu:
-
vdeqemu -b c -hda=sampledisk
starts qemu as above. If vdeq is linked to vdekvm:
-
vdekvm -b c -hda=sampledisk
starts kvm with the same parameters.
The new syntax is consistent with the new Qemu 0.8.0 network parameters.
Using vdeq is possible to specify a vde interface in the same way as
user,tap or socket interfaces.
The sock= parameter can be used to use a specific socket.
Please note that what qemu names as vlan is not related to the
802.1q VLAN managed by the vde_switch.
port= can be used to specify the port of the switch,
otherwise the first allocatable port is assigned.
The following command run a qemu VM with two ethernet interface
connected to the standard switch and
to the switch with local socket "/tmp/my.ctl", port 10, respectively
-
vde qemu -net nic,vlan=0 -net nic,vlan=1 -net vde,vlan=0 -net vde,vlan=1,sock=/tmp/my.ctl,port=10
-
vdeqemu -net nic,vlan=0 -net nic,vlan=1 -net vde,vlan=0 -net vde,vlan=1,sock=/tmp/my.ctl,port=10
The following command run a kvm VM with two ethernet interface
connected to the standard switch and
to the switch with local socket "/tmp/my.ctl", port 10, respectively
-
vde kvm -net nic,vlan=0 -net nic,vlan=1 -net vde,vlan=0 -net vde,vlan=1,sock=/tmp/my.ctl,port=10
-
vdekvm -net nic,vlan=0 -net nic,vlan=1 -net vde,vlan=0 -net vde,vlan=1,sock=/tmp/my.ctl,port=10
The old syntax can be used with Qemu 0.8.0 but all the vde interfaces are assigned to
vlan 0.
-
vdeq qemu -sock /tmp/vde.ctl,/tmp/my.ctl -b c -hda=sampledisk
-
vdeqemu -sock /tmp/vde.ctl,/tmp/my.ctl -b c -hda=sampledisk
both start qemu with
one ethernet interface connected both to the standard switch and
to the switch with local socket "/tmp/my.ctl".
OPTIONS
- --mod
-
octalmode,
specify the mode for comm socket.
- -sock
-
socketpath,
specify the UNIX socket to be used by local programs for joining the VDE.
The default value is "/tmp/vde.ctl"
It is also possible to indicate several socketpath (comma separated, no blanks):
in this case several interfaces are defined. The first socketpath is connected
to the first ne2k interface and so on.
- -h, -help, --help
-
print a Usage help.
NOTE
Qemu has changed its syntax for networking (cvs Nov.15 2005).
As a temporary solution use vdeoq and vdeoqemu instead of vdeq and vdeqemu
if you are running a qemu with the old syntax.
By default qemu uses the same MAC address for every virtual machine, so if
you plan to use several instances of qemu be sure to explicitly set a different
MAC address for each virtual machine. While generating your address beware to
not use broadcast/multicast reserved MACs, ethernet rules say: the multicast
bit is the low-order bit of the first byte, which is "the first bit on the wire".
For example
34:12:de:ad:be:ef is an unicast address,
35:12:de:ad:be:ef
is a multicast address (see ETHERNET MULTICAST ADDRESSES section in
http://www.iana.org/assignments/ethernet-numbers for more informations).
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_switch(1),
vde_plug(1),
vde_plug2tap(1),
dpipe(1).
AUTHOR
VDE is a project by Renzo Davoli <
renzo@cs.unibo.it>
Index
- NAME
-
- SYNOPSIS
-
- OLD SYNOPSIS
-
- DESCRIPTION
-
- OPTIONS
-
- NOTE
-
- NOTICE
-
- SEE ALSO
-
- AUTHOR
-
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