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Re: [Qemu-devel] net: RFC New Socket-Based, Switched Network Backend (QD

From: Stefan Hajnoczi
Subject: Re: [Qemu-devel] net: RFC New Socket-Based, Switched Network Backend (QDES)
Date: Mon, 25 Jun 2012 11:40:29 +0100

On Mon, Jun 25, 2012 at 6:42 AM, Mike Lovell <address@hidden> wrote:
> This is what I've been calling QDES or QEMU Distributed Ethernet Switch. I
> first had the idea when I was playing with the udp and mcast socket network
> backends while exploring how to build a VM infrastructure. I liked the idea of
> using the sockets backends cause it doesn't require escalated permissions to
> configure and run as well as the ability to talk over IP networks.
> But the built in socket backends either allowed for only 2 guests talking
> directly or for multiple guests where all traffic is sent to all. So one can
> either have two guests talking or have bandwidth wasted with multiple guests.
> There wasn't something that could talk to multiple guests but also utilize
> unicast traffic.

Have you looked at QEMU's net/vde.c backend?

Does VDE (http://vde.sourceforge.net/) already do everything that QDES does?


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