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Re: [Xen-users] Xen networks running in Promiscuous modes

  • To: xen-users@xxxxxxxxxxxxx
  • From: Jan Hejl <jh@xxxxxxxxxx>
  • Date: Tue, 23 Jul 2013 15:10:30 +0200
  • Delivery-date: Tue, 23 Jul 2013 13:11:52 +0000
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  • List-id: Xen user discussion <xen-users.lists.xen.org>

Hi Deven,

try OpenVSwitch http://openvswitch.org/


Dne 23.7.2013 12:23, Deven Shanbhag napsal(a):
Can I ask you a quick question? I've set up bridge-networking for Xen 4.1 (xen-4.1.3-25.el5.22) and networking was being done properly for Dom0 and DomUs. However, I noticed that Dom0 receives a lot of network interrupts or network packets even when they were not actually meant for either Dom0 or DomU. Now, here are the questions:

1. Dom0 is acting in promiscuous mode, right?

2. If answer to Q1 is yes, can it be stopped and yet have the bridging possible? If the answer is no, any idea why so many interrupts are being generated or if I'm missing something?

3. If I don't want promiscuous mode (to avoid unnecesary interrupts), should I use Route or NAT option for networking? Which one is easier and do they totally avoid promiscuous mode?

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