From acrow at integrafin.co.uk Wed May 25 05:46:34 2016 Content-Type: multipart/mixed; boundary="===============4897240026429040575==" MIME-Version: 1.0 From: Alex Crow To: users at ovirt.org Subject: Re: [ovirt-users] Network problem with bonding and Windows guests Date: Wed, 25 May 2016 10:37:45 +0100 Message-ID: <57457269.1000205@integrafin.co.uk> In-Reply-To: 569179724.1436.1464168519263.JavaMail.zimbra@makz.me --===============4897240026429040575== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable This is a multi-part message in MIME format. --------------030001000909050605090606 Content-Type: text/plain; charset=3Dwindows-1252; format=3Dflowed Content-Transfer-Encoding: 7bit On 25/05/16 10:28, Maxence Sartiaux wrote: > Hello, > > I've a problem, all my ovirt hosts are linked with a bonding mode 4 = > (802.3ad LACP) 2x10Gbps > Eveything is okay with unix guest but with Windows guest, i can ping = > but internet browsing is impossible (sometime i have a part of the = > page, very rare case) > > If i remove the bonding and bridge one interface, windows work good. > > I've tried with windows 7 and windows 10, guest additions are installed > VirtIO / rtl3189 tested, same problem > > My bonding opts : mode=3D4 lacp_rate=3D1 miimon=3D100 > Interface MTU 9000 > > Bonding mode 2 also tested On the hosts, try setting LRO off on the members of your bond, see if it = makes a difference eg, ethtool -K ens3f0 lro off ethtool -K ens3f1 lro off Alex -- This message is intended only for the addressee and may contain confidential information. Unless you are that person, you may not disclose its contents or use it in any way and are requested to delete the message along with any attachments and notify us immediately. This email is not intended to, nor should it be taken to, constitute advice. The information provided is correct to our knowledge & belief and must not be used as a substitute for obtaining tax, regulatory, investment, legal or any other appropriate advice. "Transact" is operated by Integrated Financial Arrangements Ltd. 29 Clement's Lane, London EC4N 7AE. Tel: (020) 7608 4900 Fax: (020) 7608 53= 00. (Registered office: as above; Registered in England and Wales under number: 3727592). Authorised and regulated by the Financial Conduct Authority (entered on the Financial Services Register; no. 190856). --------------030001000909050605090606 Content-Type: text/html; charset=3Dwindows-1252 Content-Transfer-Encoding: 8bit On 25/05/16 10:28, Maxence Sartiaux wrote:
Hello,=C2=A0

I've a problem, all my ovirt hosts are linked with a bonding mode 4 (802.3ad LACP) 2x10Gbps
Eveything is okay with unix=C2=A0guest but with Windows guest, i=C2=A0can ping but internet browsing is impossible (sometime i have a part of the page, very rare case)

If i remove the bonding and bridge one interface, windows work good.

I've tried with windows 7 and windows 10, guest additions are installed
VirtIO / rtl3189 tested, same problem

My bonding opts : mode=3D4 lacp_rate=3D1 miimon=3D100
Interface MTU 9000

Bonding mode 2 also tested

On the hosts, try setting LRO off on the members of your bond, see if it makes a difference

eg,

ethtool -K ens3f0 lro off
ethtool -K ens3f1 lro off

Alex

= 
--
This message is intended only for the addressee and may contain
confidential information. Unless you are that person, you may not
disclose its contents or use it in any way and are requested to delete
the message along with any attachments and notify us immediately.
This email is not intended to, nor should it be taken to, constitute advice.
The information provided is correct to our knowledge & belief and must not
be used as a substitute for obtaining tax, regulatory, investment, legal or
any other appropriate advice.

"Transact" is operated by Integrated Financial Arrangements Ltd.
29 Clement's Lane, London EC4N 7AE. Tel: (020) 7608 4900 Fax: (020) 7608 53=
00.
(Registered office: as above; Registered in England and Wales under
number: 3727592). Authorised and regulated by the Financial Conduct
Authority (entered on the Financial Services Register; no. 190856).

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