I’m looking to setup bonding. I’m using Dell 2824 switches which support LAG (static 802.3ad apparently?) but not LACP (dynamic 802.3ad). Fedora only seems to support Dynamic mode from what I can tell. The next best choice seems to be balance-alb, but for some reason it’s not available as a mode in the drop down. Any reason why it’s missing? If I select custom and enter balance-alb, is that supported?
HI, Blaster I test blance-alb and works well. But I modified the ifcfg-bond.cfg manually and restart the ovirt-engine service, then the modification will be reflacted in the GUI automatically. Best Regards xie -----邮件原件----- 发件人: users-bounces@ovirt.org [mailto:users-bounces@ovirt.org] 代表 Blaster 发送时间: 2014年12月23日 12:22 收件人: Users@ovirt.org List 主题: [ovirt-users] bond mode balance-alb I’m looking to setup bonding. I’m using Dell 2824 switches which support LAG (static 802.3ad apparently?) but not LACP (dynamic 802.3ad). Fedora only seems to support Dynamic mode from what I can tell. The next best choice seems to be balance-alb, but for some reason it’s not available as a mode in the drop down. Any reason why it’s missing? If I select custom and enter balance-alb, is that supported? _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
On Tue, Dec 23, 2014 at 08:32:04AM +0000, Xie, Chao wrote:
HI, Blaster I test blance-alb and works well. But I modified the ifcfg-bond.cfg manually and restart the ovirt-engine service, then the modification will be reflacted in the GUI automatically.
Best Regards xie
-----邮件原件----- 发件人: users-bounces@ovirt.org [mailto:users-bounces@ovirt.org] 代表 Blaster 发送时间: 2014年12月23日 12:22 收件人: Users@ovirt.org List 主题: [ovirt-users] bond mode balance-alb
I’m looking to setup bonding. I’m using Dell 2824 switches which support LAG (static 802.3ad apparently?) but not LACP (dynamic 802.3ad). Fedora only seems to support Dynamic mode from what I can tell.
The next best choice seems to be balance-alb, but for some reason it’s not available as a mode in the drop down. Any reason why it’s missing? If I select custom and enter balance-alb, is that supported?
Bug 1094842 - Bonding modes 0, 5 and 6 should be avoided for VM networks https://bugzilla.redhat.com/show_bug.cgi?id=1094842#c0
On 12/23/2014 2:55 AM, Dan Kenigsberg wrote:
Bug 1094842 - Bonding modes 0, 5 and 6 should be avoided for VM networks https://bugzilla.redhat.com/show_bug.cgi?id=1094842#c0
Dan, What is bad about these modes that oVirt can't use them? I just tested mode 4, and the LACP with Fedora 20 appears to not be compatible with the LAG mode on my Dell 2824. Would there be any issues with bringing two NICS into the VM and doing balance-alb at the guest level?
On Fri, Dec 26, 2014 at 12:39:45PM -0600, Blaster wrote:
On 12/23/2014 2:55 AM, Dan Kenigsberg wrote:
Bug 1094842 - Bonding modes 0, 5 and 6 should be avoided for VM networks https://bugzilla.redhat.com/show_bug.cgi?id=1094842#c0
Dan,
What is bad about these modes that oVirt can't use them?
I can only quote jpirko's workds from the link above: Do not use tlb or alb in bridge, never! It does not work, that's it. The reason is it mangles source macs in xmit frames and arps. When it is possible, just use mode 4 (lacp). That should be always possible because all enterprise switches support that. Generally, for 99% of use cases, you *should* use mode 4. There is no reason to use other modes.
I just tested mode 4, and the LACP with Fedora 20 appears to not be compatible with the LAG mode on my Dell 2824.
Would there be any issues with bringing two NICS into the VM and doing balance-alb at the guest level?
This is a multi-part message in MIME format. --------------070303050007040904030204 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On 12/29/2014 12=3A56 AM=2C Dan Kenigsberg wrote=3A =3E On Fri=2C Dec 26=2C 2014 at 12=3A39=3A45PM -0600=2C Blaster wrote=3A =3E=3E On 12/23/2014 2=3A55 AM=2C Dan Kenigsberg wrote=3A =3E=3E=3E Bug 1094842 - Bonding modes 0=2C 5 and 6 should be avoided for VM= networks =3E=3E=3E https=3A//bugzilla=2Eredhat=2Ecom/show=5Fbug=2Ecgi=3Fid=3D1094842= =23c0 =3E=3E Dan=2C =3E=3E =3E=3E What is bad about these modes that oVirt can=27t use them=3F =3E I can only quote jpirko=27s workds from the link above=3A =3E =3E Do not use tlb or alb in bridge=2C never! It does not work=2C that= =27s it=2E The reason =3E is it mangles source macs in xmit frames and arps=2E When it is pos= sible=2C just =3E use mode 4 =28lacp=29=2E That should be always possible because all= enterprise =3E switches support that=2E Generally=2C for 99=25 of use cases=2C you= *should* use mode =3E 4=2E There is no reason to use other modes=2E =3E This switch is more of an office switch and only supports part of the 802=2E3ad standard=3A PowerConnect* *2824 Scalable from small workgroups to dense access solutions=2C the 2824 offers 24-port flexibility plus two combo small=E2=80=91form=E2=80=91fa= ctor pluggable =28SFP=29 ports for connecting the switch to other networking= equipment located beyond the 100 m distance limitations of copper cabling=2E Industry-standard link aggregation adhering to IEEE 802=2E3ad standards =28static support only=2C LACP not supported=29 So the only way to have some kind of bonding without buying more expensive switches=2C is using balance-rr =28mode=3D0=29=2C balance-xor=20= =28mode=3D2=29 or broadcast =28modes=3D3=29=2E =3E=3E I just tested mode 4=2C and the LACP with Fedora 20 appears to not b= e =3E=3E compatible with the LAG mode on my Dell 2824=2E =3E=3E =3E=3E Would there be any issues with bringing two NICS into the VM and doi= ng =3E=3E balance-alb at the guest level=3F =3E=3E Kind regards=2C Jorick Astrego Met vriendelijke groet=2C With kind regards=2C Jorick Astrego Netbulae Virtualization Experts=20 ---------------- =09Tel=3A 053 20 30 270 =09info=40netbulae=2Eeu =09Staalsteden 4-3A =09KvK= 08198180 =09Fax=3A 053 20 30 271 =09www=2Enetbulae=2Eeu =097547 TA Enschede =09BTW= NL821234584B01 ---------------- --------------070303050007040904030204 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable =3Chtml=3E =3Chead=3E =3Cmeta content=3D=22text/html=3B charset=3DUTF-8=22 http-equiv=3D=22Co= ntent-Type=22=3E =3C/head=3E =3Cbody bgcolor=3D=22=23FFFFFF=22 text=3D=22=23000000=22=3E =3Cbr=3E =3Cdiv class=3D=22moz-cite-prefix=22=3EOn 12/29/2014 12=3A56 AM=2C Dan= Kenigsberg wrote=3A=3Cbr=3E =3C/div=3E =3Cblockquote cite=3D=22mid=3A20141228235658=2EGE21690=40redhat=2Ecom= =22 type=3D=22cite=22=3E =3Cpre wrap=3D=22=22=3EOn Fri=2C Dec 26=2C 2014 at 12=3A39=3A45PM -06= 00=2C Blaster wrote=3A =3C/pre=3E =3Cblockquote type=3D=22cite=22=3E =3Cpre wrap=3D=22=22=3EOn 12/23/2014 2=3A55 AM=2C Dan Kenigsberg wr= ote=3A =3C/pre=3E =3Cblockquote type=3D=22cite=22=3E =3Cpre wrap=3D=22=22=3EBug 1094842 - Bonding modes 0=2C 5 and 6 s= hould be avoided for VM networks =3Ca class=3D=22moz-txt-link-freetext=22 href=3D=22https=3A//bugzilla=2Ered= hat=2Ecom/show=5Fbug=2Ecgi=3Fid=3D1094842=23c0=22=3Ehttps=3A//bugzilla=2Ere= dhat=2Ecom/show=5Fbug=2Ecgi=3Fid=3D1094842=23c0=3C/a=3E =3C/pre=3E =3C/blockquote=3E =3Cpre wrap=3D=22=22=3E Dan=2C What is bad about these modes that oVirt can=27t use them=3F =3C/pre=3E =3C/blockquote=3E =3Cpre wrap=3D=22=22=3E I can only quote jpirko=27s workds from the link above=3A Do not use tlb or alb in bridge=2C never! It does not work=2C that=27s= it=2E The reason is it mangles source macs in xmit frames and arps=2E When it is possibl= e=2C just use mode 4 =28lacp=29=2E That should be always possible because all ent= erprise switches support that=2E Generally=2C for 99=25 of use cases=2C you *sh= ould* use mode 4=2E There is no reason to use other modes=2E =3C/pre=3E =3C/blockquote=3E This switch is more of an office switch and only supports part of the 802=2E3ad standard=3A=3Cbr=3E =3Cblockquote=3E =3Cbr=3E =3Ch4 style=3D=22margin=3A 0px=3B padding=3A 0px 0px 5px=3B border=3A= 0px=3B vertical-align=3A baseline=3B font-family=3A Arial=2C Helvetica=2C= sans-serif=3B font-size=3A 13px=3B color=3A rgb=2851=2C 51=2C 51=29= =3B font-style=3A normal=3B font-variant=3A normal=3B letter-spacing=3A normal=3B line-height=3A 18=2E459999084472656px=3B orphans=3A auto=3B text-al= ign=3A left=3B text-indent=3A 0px=3B text-transform=3A none=3B white-space= =3A normal=3B widows=3A auto=3B word-spacing=3A 0px=3B -webkit-text-stroke-width=3A 0px=3B background=3A rgb=28238=2C 238= =2C 238=29=3B=22=3EPowerConnect=3Cstrong style=3D=22margin=3A 0px=3B padding=3A 0px=3B border=3A 0px=3B ve= rtical-align=3A baseline=3B font-family=3A Arial=2C Helvetica=2C sans-serif=3B font-size=3A 13px=3B background=3A transparent=3B=22=3E=3Cspan class=3D=22Apple-converted-space=22=3E=C2=A0=3C/span=3E=3C/stro= ng=3E2824=3C/h4=3E =3Cspan style=3D=22color=3A rgb=280=2C 0=2C 0=29=3B font-family=3A Ar= ial=2C Helvetica=2C sans-serif=3B font-size=3A 13px=3B font-style=3A normal=3B font-var= iant=3A normal=3B font-weight=3A normal=3B letter-spacing=3A normal=3B line-height=3A 18=2E459999084472656px=3B orphans=3A auto=3B text-al= ign=3A left=3B text-indent=3A 0px=3B text-transform=3A none=3B white-space= =3A normal=3B widows=3A auto=3B word-spacing=3A 0px=3B -webkit-text-stroke-width=3A 0px=3B display=3A inline !important=3B= float=3A none=3B background-color=3A rgb=28238=2C 238=2C 238=29=3B= =22=3EScalable from small workgroups to dense=C2=A0access solutions=2C the 2824 of= fers 24-port flexibility plus two=C2=A0combo small=E2=80=91form=E2=80=91= factor pluggable =28SFP=29 ports for connecting the switch to other networking equipment located beyond the 100 m distance limitations of copper cabling=2E=3C/span=3E=3Cbr=3E =3Cbr=3E =3Cspan style=3D=22color=3A rgb=280=2C 0=2C 0=29=3B font-family=3A Ar= ial=2C Helvetica=2C sans-serif=3B font-size=3A 11px=3B font-style=3A normal=3B font-var= iant=3A normal=3B font-weight=3A normal=3B letter-spacing=3A normal=3B line-height=3A 18=2E459999084472656px=3B orphans=3A auto=3B text-al= ign=3A left=3B text-indent=3A 0px=3B text-transform=3A none=3B white-space= =3A normal=3B widows=3A auto=3B word-spacing=3A 0px=3B -webkit-text-stroke-width=3A 0px=3B display=3A inline !important=3B= float=3A none=3B background-color=3A rgb=28242=2C 242=2C 242=29=3B= =22=3EIndustry-standard link aggregation adhering to IEEE 802=2E3ad standards =28static support only=2C LACP not supported=29=3C/span=3E=3C/blockquote=3E= =3Cbr=3E So the only way to have some kind of bonding without buying more expensive switches=2C is using balance-rr =28mode=3D0=29=2C balance-xor= =28mode=3D2=29 or broadcast =28modes=3D3=29=2E=3Cbr=3E =3Cblockquote cite=3D=22mid=3A20141228235658=2EGE21690=40redhat=2Ecom= =22 type=3D=22cite=22=3E =3Cblockquote type=3D=22cite=22=3E =3Cpre wrap=3D=22=22=3E I just tested mode 4=2C and the LACP with Fedora 20 appears to not be compatible with the LAG mode on my Dell 2824=2E Would there be any issues with bringing two NICS into the VM and doing balance-alb at the guest level=3F =3C/pre=3E =3C/blockquote=3E =3C/blockquote=3E Kind regards=2C=3Cbr=3E =3Cbr=3E Jorick Astrego=3Cbr=3E =20= =3CBR /=3E =3CBR /=3E =3Cb style=3D=22color=3A=23604c78=22=3E=3C/b=3E=3Cbr=3E=3Cspan style=3D=22c= olor=3A=23604c78=3B=22=3E=3Cfont color=3D=22000000=22=3E=3Cspan style=3D=22= mso-fareast-language=3Aen-gb=3B=22 lang=3D=22NL=22=3EMet vriendelijke groet= =2C With kind regards=2C=3Cbr=3E=3Cbr=3E=3C/span=3EJorick Astrego=3C/font= =3E=3C/span=3E=3Cb style=3D=22color=3A=23604c78=22=3E=3Cbr=3E=3Cbr=3ENetbul= ae Virtualization Experts =3C/b=3E=3Cbr=3E=3Chr style=3D=22border=3Anone=3B= border-top=3A1px solid =23ccc=3B=22=3E=3Ctable style=3D=22width=3A 522px=22= =3E=3Ctbody=3E=3Ctr=3E=3Ctd style=3D=22width=3A 130px=3Bfont-size=3A 10px= =22=3ETel=3A 053 20 30 270=3C/td=3E =3Ctd style=3D=22width=3A 130px=3Bf= ont-size=3A 10px=22=3Einfo=40netbulae=2Eeu=3C/td=3E =3Ctd style=3D=22wid= th=3A 130px=3Bfont-size=3A 10px=22=3EStaalsteden 4-3A=3C/td=3E =3Ctd sty= le=3D=22width=3A 130px=3Bfont-size=3A 10px=22=3EKvK 08198180=3C/td=3E=3C/tr= =3E=3Ctr=3E =3Ctd style=3D=22width=3A 130px=3Bfont-size=3A 10px=22=3EFax= =3A 053 20 30 271=3C/td=3E =3Ctd style=3D=22width=3A 130px=3Bfont-size= =3A 10px=22=3Ewww=2Enetbulae=2Eeu=3C/td=3E =3Ctd style=3D=22width=3A 130= px=3Bfont-size=3A 10px=22=3E7547 TA Enschede=3C/td=3E =3Ctd style=3D=22w= idth=3A 130px=3Bfont-size=3A 10px=22=3EBTW NL821234584B01=3C/td=3E=3C/tr=3E= =3C/tbody=3E=3C/table=3E=3Cbr=3E=3Chr style=3D=22border=3Anone=3Bborder-top= =3A1px solid =23ccc=3B=22=3E=3CBR /=3E =3C/body=3E =3C/html=3E --------------070303050007040904030204--
This is a multi-part message in MIME format. ------------MIME-2541301019-167886131-delim Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On 12/29/2014 12=3A56 AM=2C Dan Kenigsberg wrote=3A =3E On Fri=2C Dec 26=2C 2014 at 12=3A39=3A45PM -0600=2C Blaster wrote=3A =3E=3E On 12/23/2014 2=3A55 AM=2C Dan Kenigsberg wrote=3A =3E=3E=3E Bug 1094842 - Bonding modes 0=2C 5 and 6 should be avoided for VM= networks =3E=3E=3E https=3A//bugzilla=2Eredhat=2Ecom/show=5Fbug=2Ecgi=3Fid=3D1094842= =23c0 =3E=3E Sorry=2C no mode 0=2E So only mode 2 or 3 for your environment=2E=2E=2E=2E= Kind regards=2C Jorick Met vriendelijke groet=2C With kind regards=2C Jorick Astrego Netbulae Virtualization Experts=20 ---------------- =09Tel=3A 053 20 30 270 =09info=40netbulae=2Eeu =09Staalsteden 4-3A =09KvK= 08198180 =09Fax=3A 053 20 30 271 =09www=2Enetbulae=2Eeu =097547 TA Enschede =09BTW= NL821234584B01 ---------------- ------------MIME-2541301019-167886131-delim Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable =3Chtml=3E =3Cbody=3E <br> On 12/29/2014 12:56 AM, Dan Kenigsberg wrote: <br> <font color=3D"#000000">> On Fri, Dec 26, 2014 at 12:39:45PM -0600, Blas= ter wrote: </font><br> <font color=3D"#000000">>> On 12/23/2014 2:55 AM, Dan Kenigsberg wrot= e: </font><br> <font color=3D"#000000">>>> Bug 1094842 - Bonding modes 0, 5 and 6= should be avoided for VM networks </font><br> <font color=3D"#000000">>>> <a href=3D"https://bugzilla.redhat.com= /show_bug.cgi?id=3D1094842#c0">https://bugzilla.redhat.com/show_bug.cgi?id= =3D1094842#c0</a> </font><br> <font color=3D"#000000">>> </font><br> Sorry, no mode 0. So only mode 2 or 3 for your environment.... <br> <br> Kind regards, <br> <br> Jorick <br> = =3CBR /=3E =3CBR /=3E =3Cb style=3D=22color=3A=23604c78=22=3E=3C/b=3E=3Cbr=3E=3Cspan style=3D=22c= olor=3A=23604c78=3B=22=3E=3Cfont color=3D=22000000=22=3E=3Cspan style=3D=22= mso-fareast-language=3Aen-gb=3B=22 lang=3D=22NL=22=3EMet vriendelijke groet= =2C With kind regards=2C=3Cbr=3E=3Cbr=3E=3C/span=3EJorick Astrego=3C/font= =3E=3C/span=3E=3Cb style=3D=22color=3A=23604c78=22=3E=3Cbr=3E=3Cbr=3ENetbul= ae Virtualization Experts =3C/b=3E=3Cbr=3E=3Chr style=3D=22border=3Anone=3B= border-top=3A1px solid =23ccc=3B=22=3E=3Ctable style=3D=22width=3A 522px=22= =3E=3Ctbody=3E=3Ctr=3E=3Ctd style=3D=22width=3A 130px=3Bfont-size=3A 10px= =22=3ETel=3A 053 20 30 270=3C/td=3E =3Ctd style=3D=22width=3A 130px=3Bf= ont-size=3A 10px=22=3Einfo=40netbulae=2Eeu=3C/td=3E =3Ctd style=3D=22wid= th=3A 130px=3Bfont-size=3A 10px=22=3EStaalsteden 4-3A=3C/td=3E =3Ctd sty= le=3D=22width=3A 130px=3Bfont-size=3A 10px=22=3EKvK 08198180=3C/td=3E=3C/tr= =3E=3Ctr=3E =3Ctd style=3D=22width=3A 130px=3Bfont-size=3A 10px=22=3EFax= =3A 053 20 30 271=3C/td=3E =3Ctd style=3D=22width=3A 130px=3Bfont-size= =3A 10px=22=3Ewww=2Enetbulae=2Eeu=3C/td=3E =3Ctd style=3D=22width=3A 130= px=3Bfont-size=3A 10px=22=3E7547 TA Enschede=3C/td=3E =3Ctd style=3D=22w= idth=3A 130px=3Bfont-size=3A 10px=22=3EBTW NL821234584B01=3C/td=3E=3C/tr=3E= =3C/tbody=3E=3C/table=3E=3Cbr=3E=3Chr style=3D=22border=3Anone=3Bborder-top= =3A1px solid =23ccc=3B=22=3E=3CBR /=3E =3C/body=3E =3C/html=3E ------------MIME-2541301019-167886131-delim--
participants (5)
-
Blaster -
Blaster
-
Dan Kenigsberg -
Jorick Astrego -
Xie, Chao