> On 26 Feb 2016, at 9:20 AM, Carl Baldwin <[email protected]> wrote: > > (resending with reply-all) > > The routed networks work will include a change to the DHCP scheduler > which will work something like this: > > 1. Neutron subnets will have optional affinity to a segment > 2. DHCP agents will (somewhat indirectly) report which segments to > which they are attached*. > 3. Where today, DHCP schedules networks to DHCP agents, tomorrow DHCP > will schedule each segment to an agent that can reach it. This will > be predicated on 'enable_dhcp' being set on the subnets. > > There is an implicit assumption here that the operator will deploy a > DHCP agent in each of the segments. This will be documented in the > guide.
I assume you’re referring to https://review.openstack.org/#/c/205631/ Really keen to get this in, we’re using this in prod and works well for us. Sam > Down the road, I really think we should continue to explore other > possibilities like DHCP relay or a DHCP responder on the compute host. > But, that should be considered an independent effort. > > Carl > > * they already do this by reporting physical_network in bridge mappings > > On Thu, Feb 25, 2016 at 11:30 AM, Tim Bell <[email protected]> wrote: >> >> The CERN guys had some concerns on how dhcp was working in a segment >> environment. I’ll leave them to give details. >> >> Tim >> >> >> >> >> >> On 25/02/16 14:53, "Andrew Laski" <[email protected]> wrote: >> >>> >>> >>> On Thu, Feb 25, 2016, at 05:01 AM, Tim Bell wrote: >>>> >>>> CERN info added.. Feel free to come back for more information if needed. >>> >>> An additional piece of information we're specifically interested in from >>> all cellsv1 deployments is around the networking control plane setup. Is >>> there a single nova-net/Neutron deployment per region that is shared >>> among cells? It appears that all cells users are splitting the network >>> data plane into clusters/segments, are similar things being done to the >>> control plane? >>> >>> >>>> >>>> Tim >>>> >>>> >>>> >>>> >>>> On 24/02/16 22:47, "Edgar Magana" <[email protected]> wrote: >>>> >>>>> It will be awesome if we can add this doc into the networking guide :-) >>>>> >>>>> >>>>> Edgar >>>>> >>>>> >>>>> >>>>> >>>>> On 2/24/16, 1:42 PM, "Matt Riedemann" <[email protected]> wrote: >>>>> >>>>>> The nova and neutron teams are trying to sort out existing deployment >>>>>> network scenarios for cells v1 so we can try and document some of that >>>>>> and get an idea if things change at all with cells v2. >>>>>> >>>>>> Therefore we're asking that deployers running cells please document >>>>>> anything you can in an etherpad [1]. >>>>>> >>>>>> We'll try to distill that for upstream docs at some point and then use >>>>>> it as a reference when talking about cells v2 + networking. >>>>>> >>>>>> [1] https://etherpad.openstack.org/p/cells-networking-use-cases >>>>>> >>>>>> -- >>>>>> >>>>>> Thanks, >>>>>> >>>>>> Matt Riedemann >>>>>> >>>>>> >>>>>> _______________________________________________ >>>>>> OpenStack-operators mailing list >>>>>> [email protected] >>>>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators >>>>> _______________________________________________ >>>>> OpenStack-operators mailing list >>>>> [email protected] >>>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators >>>> _______________________________________________ >>>> OpenStack-operators mailing list >>>> [email protected] >>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators >>>> Email had 1 attachment: >>>> + smime.p7s >>>> 4k (application/pkcs7-signature) >>> >>> _______________________________________________ >>> OpenStack-operators mailing list >>> [email protected] >>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators >> >> _______________________________________________ >> OpenStack-operators mailing list >> [email protected] >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators >> > > _______________________________________________ > OpenStack-operators mailing list > [email protected] > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators _______________________________________________ OpenStack-operators mailing list [email protected] http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
