This is a multi-part message in MIME format. --------------000408050507090101050409 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable Hello, thanks for the explanation, but I did'nt find any reason about=20 incompatibility between mode 0 and bridge... Can you give me some=20 sources about this? Ovirt doesn't actually allow it, so it must exist a=20 good reason for that. But for my own, I have several single kvm hosts that support bridge over=20 bonding in mode 0 and vms run fine on it... So, someone can share his experience about this kind of detail? ps: ovirt has a field for configuring custom mode whereas mode 0 is not=20 listed in the predifined list, I didn't make any test, but it seem to be=20 at least possible. Le 19/03/2015 03:57, Dan Yasny a =C3=A9crit :
Mode 0 is not supported under a bridge, just like mode 6
On Wed, Mar 18, 2015 at 10:47 PM, Xie, Chao <xiec.fnst@cn.fujitsu.com=20 <mailto:xiec.fnst@cn.fujitsu.com>> wrote:
Yeah, Alex is right. And if you want to double the network=E2=80=99= s speed in single flow, the mode 0 is only choice. But mode 0 seems not be supported in oVirt?
*=E5=8F=91 =E4=BB=B6=E4=BA=BA:*users-bounces@ovirt.org <mailto:user= s-bounces@ovirt.org> [mailto:users-bounces@ovirt.org <mailto:users-bounces@ovirt.org>] *=E4=BB=A3 =E8=A1=A8 *Alex Crow *=E5=8F=91 =E9=80=81=E6=97=B6=E9=97=B4:*2015=E5=B9=B43=E6=9C=8819=E6= =97=A50:25 *=E6=94=B6=E4=BB=B6=E4=BA=BA:*users@ovirt.org <mailto:users@ovirt.o= rg> *=E4=B8=BB=E9=A2=98:*Re: [ovirt-users] bonding 802.3ad mode
The balancing on 802.3ad only occurs for different network flows based on a hash of source and destination MAC (or can be made to add IP addresses into the calculation). A single flow will only use a single NIC in ad mode.
Alex
On 18/03/15 16:17, Nathana=C3=ABl Blanchet wrote:
Hi all,
I'm used to create a mode 4 bond0 interface with two 1 Gb/s interfaces on all my hosts, and ethtool bond0 gives me a functionnal 2000Mb/s. However, when importing a vm from the export domain (NFS with a speed of 4GB/s), I always have this alert:
"Host siple has network interface which exceeded the defined threshold [95%] (em3: transmit rate[0%], receive rate [100%])" It seems that the second nic never works while the first one is overloaded. Is it an expected behaviour? I believed that the flow was balanced between the two interfaces in 802.3ad mode.
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--------------000408050507090101050409 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable <html> <head> <meta content=3D"text/html; charset=3DUTF-8" http-equiv=3D"Content-Ty= pe"> </head> <body bgcolor=3D"#FFFFFF" text=3D"#000000"> Hello, thanks for the explanation, but I did'nt find any reason about incompatibility between mode 0 and bridge... Can you give me some sources about this? Ovirt doesn't actually allow it, so it must exist a good reason for that.<br> But for my own, I have several single kvm hosts that support bridge over bonding in mode 0 and vms run fine on it...<br> So, someone can share his experience about this kind of detail?<br> <br> ps: ovirt has a field for configuring custom mode whereas mode 0 is not listed in the predifined list, I didn't make any test, but it seem to be at least possible.<br> <br> <div class=3D"moz-cite-prefix">Le 19/03/2015 03:57, Dan Yasny a =C3=A9crit=C2=A0:<br> </div> <blockquote cite=3D"mid:CALLXwb6HyyT-xZ00gw1qKLyd=3DH6UHf1p6Nw5m1R2e+p+sGaWow@mail.gm= ail.com" type=3D"cite"> <div dir=3D"ltr">Mode 0 is not supported under a bridge, just like mode 6<br> <div class=3D"gmail_extra"><br> <div class=3D"gmail_quote">On Wed, Mar 18, 2015 at 10:47 PM, Xie, Chao <span dir=3D"ltr"><<a moz-do-not-send=3D"true" href=3D"mailto:xiec.fnst@cn.fujitsu.com" target=3D"_blank= ">xiec.fnst@cn.fujitsu.com</a>></span> wrote:<br> <blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div bgcolor=3D"white" link=3D"blue" vlink=3D"purple" lang=3D"ZH-CN"> <div> <p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:"Calibri","sans-seri= f";color:#1f497d" lang=3D"EN-US">Yeah, Alex is right. And if you want to double the network=E2=80=99s speed in single flo= w, the mode 0 is only choice. But mode 0 seems not be supported in oVirt?</span></p> <p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:"Calibri","sans-seri= f";color:#1f497d" lang=3D"EN-US">=C2=A0</span></p> <div> <div style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0cm 0cm 0cm"> <p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt;font-family:SimSun;= color:windowtext">=E5=8F=91 =E4=BB=B6=E4=BA=BA<span lang=3D"EN-US">:</spa= n></span></b><span style=3D"font-size:10.0pt;font-family:SimSun;color:windowtext" lang=3D"EN-US"> <a moz-do-not-send=3D"true" href=3D"mailto:users-bounces@ovirt.org" target=3D"_blank">users-bounces@ovirt.org</a> [mailto:<a moz-do-not-send=3D"true" href=3D"mailto:users-bounces@ovirt.org" target=3D"_blank">users-bounces@ovirt.org</a>= ] </span><b><span style=3D"font-size:10.0pt;font-family:SimSun;= color:windowtext">=E4=BB=A3 =E8=A1=A8 </span> </b><span style=3D"font-size:10.0pt;font-family:SimSun;co= lor:windowtext" lang=3D"EN-US">Alex Crow<br> </span><b><span style=3D"font-size:10.0pt;font-family:SimSun;= color:windowtext">=E5=8F=91 =E9=80=81=E6=97=B6=E9=97=B4<span lang=3D"EN-U= S">:</span></span></b><span style=3D"font-size:10.0pt;font-family:SimSun;color:windowtext" lang=3D"EN-US"> 2015</span><span style=3D"font-size:10.0pt;font-family:SimSun;co= lor:windowtext">=E5=B9=B4<span lang=3D"EN-US">3</span>=E6=9C=88<span lang=3D= "EN-US">19</span>=E6=97=A5<span lang=3D"EN-US"> 0:25<br> </span><b>=E6=94=B6=E4=BB=B6=E4=BA=BA<span lang= =3D"EN-US">:</span></b><span lang=3D"EN-US"> <a moz-do-not-send=3D"true" href=3D"mailto:users@ovirt.org" target=3D"_blank">users@ovirt.org</a><br> </span><b>=E4=B8=BB=E9=A2=98<span lang=3D"EN-US= ">:</span></b><span lang=3D"EN-US"> Re: [ovirt-users] bonding 802.3ad mode</span></span></p> </div> </div> <p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0</spa= n></p> <p class=3D"MsoNormal" style=3D"margin-bottom:12.0pt"><= span lang=3D"EN-US">The balancing on 802.3ad only occurs for different network flows based on a hash of source and destination MAC (or can be made to add IP addresses into the calculation). A single flow will only use a single NIC in ad mode.<br> <br> Alex<br> <br> <br> </span></p> <div> <p class=3D"MsoNormal"><span lang=3D"EN-US">On 18/03/= 15 16:17, Nathana=C3=ABl Blanchet wrote:</span></p> </div> <blockquote style=3D"margin-top:5.0pt;margin-bottom:5.0pt"> <p class=3D"MsoNormal"><span lang=3D"EN-US">Hi all,<b= r> <br> I'm used to create a mode 4 bond0 interface with two 1 Gb/s interfaces on all my hosts, and ethtool bond0 gives me a functionnal 2000Mb/s. However, when importing a vm from the export domain (NFS with a speed of 4GB/s), I always have this alert:</span></p> <div> <div> <p class=3D"MsoNormal" style=3D"margin-bottom:12.0pt"><span lang=3D"EN-US">"Host siple has network interface which exceeded the defined threshold [95%] (em3: transmit rate[0%], receive rate [100%])"<br> It seems that the second nic never works while the first one is overloaded.<br> Is it an expected behaviour? I believed that the flow was balanced between the two interfaces in 802.3ad mode.</span></p> </div> </div> <p class=3D"MsoNormal"><span lang=3D"EN-US"><br> <br> -- <br> This message has been scanned for viruses and <br=
http://lists.ovirt.org/mailman/listinfo/users</a></span></pre> </blockquote> <p class=3D"MsoNormal"><span lang=3D"EN-US"><br> <br> </span></p> <pre><span lang=3D"EN-US">-- </span></pre> <pre><span lang=3D"EN-US">This message is intended only= for the addressee and may contain</span></pre> <pre><span lang=3D"EN-US">confidential information. Unl= ess you are that person, you may not</span></pre> <pre><span lang=3D"EN-US">disclose its contents or use = it in any way and are requested to delete</span></pre> <pre><span lang=3D"EN-US">the message along with any at= tachments and notify us immediately.</span></pre> <pre><span lang=3D"EN-US">"Transact" is operated by Int= egrated Financial Arrangements plc. 29</span></pre> <pre><span lang=3D"EN-US">Clement's Lane, London EC4N 7= AE. Tel: (020) 7608 4900 Fax: (020) 7608</span></pre> <pre><span lang=3D"EN-US">5300. (Registered office: as = above; Registered in England and Wales</span></pre> <pre><span lang=3D"EN-US">under number: 3727592). Autho= rised and regulated by the Financial</span></pre> <pre><span lang=3D"EN-US">Conduct Authority (entered on=
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