From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Luan Subject: Re: xen-netback notify DomU to send ARP. Date: Sun, 13 Jan 2013 09:51:22 +0800 Message-ID: <50F2131A.4010300@163.com> References: <50EC099D.6020407@oracle.com> <50EC297A02000078000B3BB5@nat28.tlf.novell.com> <1357652541.7989.179.camel@zakaz.uk.xensource.com> <50EC3DFD.8060206@oracle.com> <1357660834.12649.103.camel@dagon.hellion.org.uk> <50ED1EB3.3080605@oracle.com> <50ED4F1D02000078000B3F87@nat28.tlf.novell.com> <50ED6255.7020006@oracle.com> <50ED825802000078000B4113@nat28.tlf.novell.com> <50ED8ED3.8010007@163.com> <50ED9E6502000078000B4220@nat28.tlf.novell.com> <50ED950A.6010203@163.com> <50EDA80002000078000B427B@nat28.tlf.novell.com> <50EDA624.1010008@163.com> <50EE66FF.2020802@oracle.com> <50EEDC38.8000201@163.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0094153491384546955==" Return-path: In-Reply-To: <50EEDC38.8000201@163.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Ian Campbell Cc: xen-devel@lists.xensource.com, Jan Beulich List-Id: xen-devel@lists.xenproject.org This is a multi-part message in MIME format. --===============0094153491384546955== Content-Type: multipart/alternative; boundary="------------080004000500090000020609" This is a multi-part message in MIME format. --------------080004000500090000020609 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Hi Ian, The patch only notify around peer how to reach it when network circumstance changed. I don't know what's wrong about the patch (the new feature isn't proper or the patch have other problem)? Why do any body ask the issue? Thanks, Jason ? 2013?01?10? 23:20, Jason Luan ??: > Hi Ian, > Could you give some advice about the patch? > > Thanks, > Jason > > ? 2013?01?10? 15:00, jianhai luan ??: >> The patch main to fix the below circumstance: >> Bonding run in Active-Backup mode. >> Out PC --> switcher >> port A --> eth0 --> bond0 --> xenbr0 --> netbackend --> DomU >> port B -- eth1 / >> Or >> >> Out PC (R)--> switcher A --> eth0 --> bond0 --> xenbr0 --> netbackend >> --> DomU >> \ switcher B -- eth1 / >> >> When Switcher Port A (active port) don't reach, or switcher A don't >> reach, >> the surroundings will changed to the below circumstance. >> Out PC --> switcher >> port A -X- eth0 -- bond0 -- xenbr0 -- netbackend -- DomU >> port B -- eth1 / >> Or >> >> Out PC (R)--> switcher A -X- eth0 -- bond0 -- xenbr0 -- netbackend -- >> DomU >> \ switcher B -- eth1 / >> >> So, the former traffic will be unreachable before find the correct >> path (by sending >> ARP request). >> >> So, the patch is main to found the bonding change event, and >> gratutious ARP initialtivly >> to out PC find the correct path. >> >> the correct path should be the below circumstance: >> Out PC --> switcher >> port A -X- eth0 --> bond0 --> xenbr0 --> netbackend --> DomU >> port B --> eth1 / >> Or >> >> Out PC (R)--> switcher A -X- eth0 --> bond0 --> xenbr0 --> netbackend >> --> DomU >> \ switcher B --> eth1 / >> >> Thanks, >> Jason >> ????????????? >> ??????????,????????????????????,?????????? >> >> 0001-xen-netback-notify-frontend-to-send-gratuitous-ARP.patch >> ??: http://163.fm/DGsSn9l >> >> ??: http://163.fm/SKhxM8D >> >> >> >> >> >> _______________________________________________ >> Xen-devel mailing list >> Xen-devel@lists.xen.org >> http://lists.xen.org/xen-devel > > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xen.org > http://lists.xen.org/xen-devel --------------080004000500090000020609 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit
Hi Ian,
  The patch only notify around peer how to reach it when network circumstance changed.
I don't know what's  wrong about the patch (the new feature isn't proper or the patch have other problem)?
Why do any body ask the issue?
 
Thanks,
Jason
于 2013年01月10日 23:20, Jason Luan 写道:
Hi Ian,
  Could you give some advice about the patch?

Thanks,
Jason

于 2013年01月10日 15:00, jianhai luan 写道:
The patch main to fix the below circumstance:
Bonding  run in Active-Backup mode.
Out PC --> switcher
            port A --> eth0 --> bond0 --> xenbr0 --> netbackend --> DomU
            port B -- eth1 /
Or

Out PC (R)--> switcher A --> eth0 --> bond0 --> xenbr0 --> netbackend --> DomU
            \ switcher B -- eth1 /

When Switcher Port A (active port) don't reach, or switcher A don't reach,
the surroundings will changed to the below circumstance.
Out PC --> switcher
            port A -X- eth0 -- bond0 -- xenbr0 -- netbackend -- DomU
            port B -- eth1 /
Or

Out PC (R)--> switcher A -X- eth0 -- bond0 -- xenbr0 -- netbackend -- DomU
            \ switcher B -- eth1 /

So, the former traffic will be unreachable before find the correct path (by sending
ARP request).

So, the patch is main to found the bonding change event, and gratutious ARP initialtivly
to out PC find the correct path.

the correct path should be the below circumstance:
Out PC --> switcher
            port A -X- eth0 --> bond0 --> xenbr0 --> netbackend --> DomU
            port B --> eth1 /
Or

Out PC (R)--> switcher A -X- eth0 --> bond0 --> xenbr0 --> netbackend --> DomU
            \ switcher B --> eth1 /

Thanks,
Jason
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0001-xen-netback-notify-frontend-to-send-gratuitous-ARP.patch
下载: http://163.fm/DGsSn9l

预览: http://163.fm/SKhxM8D 





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--------------080004000500090000020609-- --===============0094153491384546955== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel --===============0094153491384546955==--