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RE: [Xen-users] Re: the bridge send all traffic to every vps when one vp

To: "xen-users@xxxxxxxxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-users] Re: the bridge send all traffic to every vps when one vps starts
From: Nathan Eisenberg <nathan@xxxxxxxxxxxxxxxx>
Date: Mon, 1 Feb 2010 17:27:36 -0800
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Thread-topic: [Xen-users] Re: the bridge send all traffic to every vps when one vps starts
>I'm no expert, but I belive the bridge works as a hub.
>Maybe you should try Open vSwitch?
>http://openvswitch.org/

That would be counter to what a bridge is - which is to say, a switch (which 
floods on ARP-fail).

Every time you start a VPS, the bridge's MAC address table is probably getting 
flushed.  It doesn't 'converge' for a period of time (once it's learned where 
MAC addresses 'are') - which is probably significant at 32 VPS's.

That said, openvswitch is a cool project.  Just wanted to be clear - the bridge 
isn't a hub, it's just a switch that falls back to flooding traffic out all 
interfaces when its mac-address-table is empty.

Best Regards,
Nathan Eisenberg


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