openstack/neutron
Code Issues Proposed changes

[OVN] List a few missing feature parity gaps

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What the first line of the commit says :-)

Change-Id: Ib29e2fefe74932d9cdae2bc509b135071863bfea
Signed-off-by: Lucas Alvares Gomes <lucasagomes@gmail.com>
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Lucas Alvares Gomes 2020-06-08 11:03:15 +01:00 committed by Brian Haley
parent 64b92687a5
commit d0daa49d6e
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doc/source/ovn/gaps.rst
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@ -62,6 +62,33 @@ at [1]_.
Currently ML2/OVS supports making a tenant subnet routable via BGP, and
can announce host routes for both floating and fixed IP addresses.
* Baremetal provisioning with iPXE
The core OVN DHCP server implementation does not have support for
sending different boot options based on the ``gpxe`` DHCP Option
(no. 175). Also, Ironic uses dnsmasq syntax when configuring the DHCP
options for Neutron [6]_ which is not understood by the OVN driver.
* Availability Zones
Availability zones are used to make network resources highly available
by grouping nodes in separate zones which resources will be scheduled
to. Neutron supports two types of availability zones: Network (DHCP
agent) and router (L3 agent). The OVN team needs to assess each case
to see how they would fit in the OVN model. For example, in the router
availability zone case, the OVN driver should schedule the router
ports on a Chassis (a "node" in OVN terms) where the availability
zones match with the router availability zones [7]_.
* Routed provider networks
Routed provider networks allow for a single provider network to
represent multiple L2 domains (segments). The OVN driver does not
understand this feature yet and will need to account for multiple
physical networks associated with a single OVN Logical Switch (a
network in Neutron terms) [8]_.
References
----------
@ -70,3 +97,6 @@ References
.. [3] https://review.opendev.org/#/c/539826/
.. [4] https://github.com/openvswitch/ovs/commit/66d89287269ca7e2f7593af0920e910d7f9bcc38
.. [5] https://github.com/torvalds/linux/blob/master/net/openvswitch/meter.h
.. [6] https://github.com/openstack/ironic/blob/123cb22c731f93d0c608d791b41e05884fe18c04/ironic/common/pxe_utils.py#L447-L462>
.. [7] https://docs.openstack.org/neutron/latest/admin/config-az.html
.. [8] https://bugs.launchpad.net/neutron/+bug/1865889