[Qemu-devel] vdq and qemu

[Qemu-devel] vdq and qemu

[adrian.lambeck]

Hi,
I am using qemu-0.9 with vde to connect to a vde_switch. It works fine.
My question is if I can also use the wirefilter feature of vde in this context without changing vdeq? Does anybody have experience with this ?

Thanks

Adrian Lambeck

Re: [Qemu-devel] vdq and qemu

[Mattia Gentilini]

adrian.lambeck@basicsedv.de ha scritto:
> My question is if I can also use the wirefilter feature of vde in this context
> without changing vdeq? Does anybody have experience with this ?
As far as I know wirefilter is to be placed into a VDE cable, i.e. in a 
dpipe. So, if you use something like

dpipe <vde_plug_connecting_to_vdeq> = <ssh_or_netcat_or_nothing> 
<remote_vde_plug>

to connect your local vdeq to some local or remote vde_switch, you 
should change it into

dpipe <vde_plug_connecting_to_vdeq> = wirefilter <wirefilter_options> = 
<ssh_or_netcat_or_nothing> <remote_vde_plug>

if you don't use a dpipe, e.g. if you connect vdeq to a vde_switch and 
that switch to a slirpvde, then I think there's no other way that 
running another switch, link the 2 switches using dpipe and wirefilter 
(using the syntax above), and connect one switch to vdeq and the other 
to slirpvde.

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Re: [Qemu-devel] vdq and qemu

[Adrian Lambeck]

Thanks for the reply! I am using vdeq to connect the qemu instance to 
the vde_switch and therefor I can not use dpipe. I will have to look 
into the sources of vdeq to see if I can change this somehow.

Adrian Lambeck

Re: [Qemu-devel] vdq and qemu

[Mattia Gentilini]

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Adrian Lambeck ha scritto:
> Thanks for the reply! I am using vdeq to connect the qemu instance to 
> the vde_switch and therefor I can not use dpipe. I will have to look 
> into the sources of vdeq to see if I can change this somehow.
> 
> Adrian Lambeck
> 
why not? dpipe connects vde_switch(es) together, it doesn't interfere 
with vdeq.

To better understand how to interconnect vde_switch, vdeq and dpipe I 
attach this schema, inspired by those made by Renzo Davoli, main 
developer of VDE. In particular, connection number 3 is made when you 
launch vdeq specifying the switch to connect QEMU to. Then, you launch 
dpipe with the tho vde_plug(s) to connect two vde_switch(es). the plugs 
implement the little gray connections you see in the left part of the 
schema, while dpipe creates the connection number 4 (green). The 
connection number 2 (dark red) could be created either by slirpvde or a 
tun/tap interface.

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|\/|55: Mattia Gentilini e 55 oggetti non identificati
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