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[Qemu-devel] socket from virtual eth

From: Vincent Perrier
Subject: [Qemu-devel] socket from virtual eth
Date: Thu, 09 Apr 2009 00:40:52 +0200

I use the sockets (tcp) to simulate my ethernet devices inside 
the qemu-kvm machines with the line: 

"-net socket,vlan=%d,connect="

As you see I use the lo interface, and the use of a port on the
host machine is not required.

The software using this soft is a graphical virtual network manager, at
http://clownix.net as it was made for the UML virtual machine at first,
it used sun sockets to emulate ethernet inside UMLs.

I wonder if I will have (or have not yet found) unix sockets instead 
of ip ones for the qemu eth (I have the basic qemu of fedora 10).
I find it very strange not to have unix sockets for eth, since I use
"-serial unix:%s" for the ttySx access of qemu machines and those are
unix sockets.

And for the tcp sockets, I lost some time before I found out about 
the 4 first bytes giving the size of the incoming packet.
I have yet another question, do you think that the network performance
is reduced through sockets, or is it the same as an access such as tap?

Vincent Perrier

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