8f1912a1d1
OVN creates localport [1] for each network that has metadata and allocate IP address from subnet within this network that has DHCP enabled. The traffic from this port will never go outside the chassis. While using multiple segments with subnet linked to each segment OVN needs to create an allocation of IP address for each of those subnets [2] in order to generate data for OVN NBDB IPv4 DHCP Options. The change [3] started to validate that condition, while multiple IP addresses from different segments are tried to be allocated on one port. We can skip this for OVN Metadata port, because there is no reason to prevent those kind of allocation for OVN. For stable branches we decide if a port is distributed or not by looking for DEVICE_OWNER_DHCP device owner and `ovn` device_id, instead DEVICE_OWNER_DISTRIBUTED device owner. Conflicts: neutron/db/ipam_backend_mixin.py neutron/tests/unit/db/test_ipam_pluggable_backend.py neutron/tests/unit/plugins/ml2/drivers/ovn/mech_driver/test_mech_driver.py [1] http://www.openvswitch.org/support/dist-docs/ovn-architecture.7.html [2] |
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