If this is in fact an issue with an active/active bond creating bad ARP entries in your networking gear, an active/passive bond (and the flushing the ARP caches of you networking gear upstream from this server) should resolve it. If nothing else, it's a good troubleshooting step to see if that's the variable causing you issues.
On Sun, 2015-04-12 at 19:30 +0100, Fedi Ben Ali wrote: > I think that if this is the case ,ithink that i will have problems to > resolve the issue .But i'm asking if i use a active/passive bond > ,can this > help ? > > 2015-04-12 19:09 GMT+01:00 Sam Ceylani <s...@mistercertified.com>: > > > Only explanation I can come up with (and I didn’t want to send > > this email > > because it could be wrong) > > is since it is using VM's Mac address when registering with your > > switch > > It might be normal in an active-active bond on public interface, > > since new > > VM will have a different MAC, or MAC changes on virtual switch > > I might be wrong but I know it uses VM's mac address, like I said > > it is > > hard to pinpoint the issue but could be the case... > > When I have time I will trace packets on an active-active bond to > > better > > understand what's going on... > > > > -----Original Message----- > > From: Fedi Ben Ali [mailto:ben.ali.fe...@gmail.com] > > Sent: Sunday, April 12, 2015 1:59 PM > > To: users@cloudstack.apache.org > > Subject: Re: Urgent : Xenserver Bond status change > > > > Any idea ??? > > > > 2015-04-12 0:13 GMT+01:00 Fedi Ben Ali <ben.ali.fe...@gmail.com>: > > > > > I've cheked my xensource.log and i have no trace of the issue(i > > > keep > > > looking ,my bond is on Active/Active. All my bonds are > > > configured on > > > two PIF that are connected to two switches thats why we are not > > > using > > lacp. > > > > > > Thx > > > > > > 2015-04-11 23:00 GMT+01:00 Sam Ceylani <s...@mistercertified.com>: > > > > > > > adding or removing a vm shouldn't affect management bond status > > > > unless when cloudstack makes an API call to xen toolstack for > > > > adding > > > > or removing vm somehow xenserver's management interface is > > > > bounced > > > > with that API call, I would check xenserver logs under > > > > /var/log and > > > > you can determine the reason, i doubt it is related to > > > > cloudstack, > > > > it could also be a spanning-tree or lacp issue, check switch > > > > logs to > > > > determine if any of those sub systems on the switch causing > > > > this > > issue...what kind of bond is this? > > > > how is it configured on the switch,is it lacp or not basically? > > > > > > > > > > > > Thanks, > > > > > > > > Sam Ceylani, MBA > > > > Computer Engineer > > > > MisterCertified Inc. > > > > > > > > 301 W. Platt St. Suite 447, Tampa, FL > > > > 33606<x-apple-data-detectors://0/0> > > > > P 813<tel:813.264.6460>.264.6460<tel:813.264.6460> M > > > > 813<tel:813.416.7867>.416.7867<tel:813.416.7867> > > > > F 800<tel:800.553.9520>.553.9520<tel:800.553.9520> E > > > > sam.ceyl...@mistercertified.com<mailto: > > > > sam.ceyl...@mistercertified.co > > > > m> > > > > > > > > On Apr 11, 2015, at 5:52 PM, "Fedi Ben Ali" < > > > > ben.ali.fe...@gmail.com > > > > <mailto:ben.ali.fe...@gmail.com>> wrote: > > > > > > > > Hello , > > > > > > > > > > > > I'm working on a platform with many xenservers ,i'm using > > > > bonded > > > > interfaces for all the required cloudstack networks > > > > (management,guest,storage,public). > > > > > > > > All my networks works fine except the public network ,each > > > > time i add > > > > or remove VM from a cluster ,the xenserver log shows" the > > > > status of > > > > the bond has changed ". > > > > > > > > Did i miss some configuration ?? > > > > > > > > > > > > i 'll give my log output : > > > > > > > > WB5: Bond status has changed,"3","The status of the > > > > eth2+eth3+eth4 bond > > > > changed: 0/3 up (was 3/3)" WB5: Bond status has > > > > changed,"3","The > > status > > > > of the eth2+eth3+eth4 bond changed: 3/3 up (was 0/3)" > > > > WB1: Bond status has changed,"3","The status of the > > > > eth5+eth6+eth7 > > > > bond > > > > changed: 0/3 up (was 3/3)"," > > > > > > > > > > > >
