Open Stack

Thank you, Amy!

Tom

On Mon, Jul 13, 2020 at 5:19 PM Amy Marrich <amy at demarco.com> wrote:

> Hey Tom,
>
> Adding the OpenStack discuss list as I think you got several replies from
> there as well.
>
> Thanks,
>
> Amy (spotz)
>
> On Mon, Jul 13, 2020 at 5:37 PM Thomas King <thomas.king at gmail.com> wrote:
>
>> Good day,
>>
>> I'm bringing up a thread from June about DHCP relay with neutron networks
>> in Ironic, specifically using unicast relay. The Triple-O docs do not have
>> the plain config/neutron config to show how a regular Ironic setup would
>> use DHCP relay.
>>
>> The Neutron segments docs state that I must have a unique physical
>> network name. If my Ironic controller has a single provisioning network
>> with a single physical network name, doesn't this prevent my use of
>> multiple segments?
>>
>> Further, the segments docs state this: "The operator must ensure that
>> every compute host that is supposed to participate in a router provider
>> network has direct connectivity to one of its segments." (section 3 at
>> https://docs.openstack.org/neutron/pike/admin/config-routed-networks.html#prerequisites -
>> current docs state the same thing)
>> This defeats the purpose of using DHCP relay, though, where the Ironic
>> controller does *not* have direct connectivity to the remote segment.
>>
>> Here is a rough drawing - what is wrong with my thinking here?
>> Remote server: 10.146.30.32/27 VLAN 2116<-----> Router with DHCP relay
>> <------> Ironic controller, provisioning network: 10.146.29.192/26 VLAN
>> 2115
>>
>> Thank you,
>> Tom King
>> _______________________________________________
>> openstack-mentoring mailing list
>> openstack-mentoring at lists.openstack.org
>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-mentoring
>>
>
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