[ovs-dev] [PATCH] ovn: support requested-chassis option for logical switch ports

Russell Bryant russell at ovn.org
Mon Aug 21 15:48:07 UTC 2017


On Fri, Aug 18, 2017 at 7:15 PM, Ben Pfaff <blp at ovn.org> wrote:
> On Fri, Aug 18, 2017 at 12:13:39PM -0400, Lance Richardson wrote:
>> This patch adds support for a "requested-chassis" option for logical
>> switch ports. If set, the only chassis that will claim this port is the
>> chassis identfied by this option; if already bound by another chassis,
>> it will be released.
>>
>> The primary benefit of this enhancement is allowing a CMS to prevent
>> "thrashing" in the southbound database during live migration by keeping
>> the original chassis from attempting to re-bind a port that is in the
>> process of migrating.
>>
>> This would also allow (with some additional work) RBAC to be applied
>> to the Port_Binding table for additional security.
>>
>> Signed-off-by: Lance Richardson <lrichard at redhat.com>
>
> This seems reasonable to me.
>
> Do you think you could add a little more information to the
> documentation, about the intended use of this feature?  It's nice to
> have that kind of information at hand to help readers to understand the
> goal of a feature.

Thanks, Ben.  Since you're generally OK with this, I'll review v2 and
apply once docs are updated.

-- 
Russell Bryant


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