Hi [+list],

For example, you could use xe or xapi to set the other-config value on a
PIF to indicate you want STP.

  # xe pif-param-set other-config:stp=true uuid=SOME_UUID

Then you could use some monitoring script or hook into the interface
configuration scripts to
look at this value and enable STP if it is not already enabled.

  # xe pif-param-get param-name=other-config param-key=stp uuid=SOME_UUID
  true

  -Reid


On Wed, Oct 16, 2013 at 2:35 AM, Alexandru Coseru <alex.cos...@simplus.ro>wrote:

> Hello,****
>
> ** **
>
> Can you give me an example?****
>
> ** **
>
> We are just starting with XEN and all machines in the network are
> configured with 2 NIC’s and STP switches.****
>
> ** **
>
> ** **
>
> Best Regards,****
>
> ** **
>
> *From:* Reid Price [mailto:rpr...@nicira.com]
> *Sent:* Thursday, September 19, 2013 11:51 PM
> *To:* Faisal Ali
> *Cc:* Alexandru Coseru; discuss@openvswitch.org
> *Subject:* Re: [ovs-discuss] Openvswitch configuration persistence****
>
> ** **
>
> Hi guys [+list],****
>
> ** **
>
> You might find that you have unexpected behavior down the road with that
> tactic.****
>
> I would perhaps suggest an approach where you set a value (using xapi) for
> the****
>
> PIF's other-config, and then run your own script (perhaps on bootup) that
> finds****
>
> PIF and does configuration based upon that field.****
>
> ** **
>
> Otherwise you are likely to cause Xenserver to freak out at some point, or
> to****
>
> have stale network configuration floating around.****
>
> ** **
>
>   -Reid****
>
> ** **
>
> On Thu, Sep 19, 2013 at 10:46 AM, Faisal Ali <justhu...@gmail.com> wrote:*
> ***
>
> Yes, I found that on Xenserver 6.2 the openvswitch startup script resets
> the ovs configuration. With my limited knowledge of scripting I managed to
> find a particular lines and comment them out. That stopped Xen from wiping
> out the ovs configs****
>
> ** **
>
> Here the lines****
>
> ** **
>
>   if test ! -e /var/run/openvswitch.booted; then****
>
>         touch /var/run/openvswitch.booted****
>
>         set "$@" --delete-bridges****
>
>     fi****
>
> ** **
>
> ** **
>
> *From: *Alexandru Coseru <alex.cos...@simplus.ro>
> *Date: *Mon, 16 Sep 2013 13:28:03 +0300
> *To: *Faisal Ali <justhu...@gmail.com>, <rpr...@nicira.com>
> *Subject: *Re: [ovs-discuss] Openvswitch configuration persistence****
>
> ** **
>
> ** **
>
> ** **
>
> Hello guys,****
>
>  ****
>
> ** **
>
> ** **
>
> Did somebody found a solution for the problem below?****
>
>  ****
>
> We want to use openvswitch to a configure a host with 2 nic with STP ON (for 
> switch redundacy).****
>
>  ****
>
> Best Regards,****
>
>          Alex****
>
>  ****
>
>  ****
>
>  ****
>
>  ****
>
> Thanks for the clarification Reid****
>
>  ****
>
> On Aug 26, 2013, at 12:20 PM, Reid Price <rpr...@nicira.com> wrote:****
>
>  ****
>
> ** **
>
> ** **
>
> > OVS by itself saves configuration through boots, etc., ovsdb is 
> > transactional ****
>
> > (usually stored in /etc/openvswitch/conf.db). Xen removes that config on 
> > boot ****
>
> > up.****
>
> > ****
>
> > On Aug 26, 2013, at 7:51 AM, Faisal Ali <justhu...@gmail.com> wrote:****
>
> > ****
>
> >> Thank you Reid, so just so Iam clear, is it because ovs is not meant to 
> >> save ****
>
> >> the config?  The reason I ask is I read it in a blog that it does save 
> >> it.****
>
> ** **
>
> ** **
>
> >> ****
>
> >> On Aug 26, 2013, at 3:40 AM, Reid Price <rpr...@nicira.com> wrote:****
>
> >> ****
>
> >>> Hi Faisal,****
>
> >>> ****
>
> >>> Xen only persists its own OVS information, and recreates it from scratch 
> >>> ****
>
> >>> (xapi information) at boot.****
>
> >>> ****
>
> >>> -Reid****
>
> >>> ****
>
> >>> On Aug 25, 2013, at 5:41 PM, Faisal Ali <justhu...@gmail.com> wrote:****
>
> >>> ****
>
> >>>> Hi,****
>
> >>>> ****
>
> >>>> I am using xenserver 6.2 which has openvswitch version 1.4.6 running.****
>
> >>>> ****
>
> >>>> When I configure ovs using ovs commands it does not save the 
> >>>> configuration ****
>
> >>>> and its lost after reboot. ****
>
> >>>> ****
>
> >>>> I am not sure if this how ovs works or Xen has a modified implementation 
> >>>> ****
>
> ** **
>
> ** **
>
> >>>> of ovs that does not allow to permanently save the configuration.****
>
> >>>> ****
>
> >>>> Please let me know what is the correct way if any or my assumptions are 
> >>>> ****
>
> ** **
>
> ** **
>
> >>>> incorrect****
>
> >>>> ****
>
> >>>> Thank you****
>
> >>>> ****
>
> >>>> Faisal Ali****
>
> >>>> _______________________________________________****
>
> >>>> discuss mailing list****
>
> >>>> discuss@openvswitch.org****
>
> >>>> http://openvswitch.org/mailman/listinfo/discuss****
>
> _______________________________________________****
>
> ** **
>
> ** **
>
> discuss mailing list****
>
> discuss@openvswitch.org****
>
> http://openvswitch.org/mailman/listinfo/discuss****
>
>  ****
>
> ** **
>
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