Public bug reported:
In ML2/OVN, the OVN equivalent of a Neutron Subnet is a DHCP_Option
entry in the OVN Northbound database but, when DHCP is disabled for a
Neutron Subnet no entry is created.
Projects like ovn-bgp-agent does not talk directly to Neutron, instead
it gets information from the OVN Northbound database that is populated
by ML2/OVN.
For the multi-cloud connect with BGP work, the ovn-bgp-agent needs to
know the CIDR of the provider network but, if DHCP is disabled we do not
have that information at handy as the DHCP_Option entry is not present.
This LP is addressing that problem and proposing storing the subnet's
CIDRs in the Logical_Switch table (the Neutron Network equivalent in
OVN) external_ids column. With that, projects such ovn-bgp-agent can
consume this information while doing it's configuration.
** Affects: neutron
Importance: Medium
Assignee: Lucas Alvares Gomes (lucasagomes)
Status: Confirmed
** Tags: ovn
** Changed in: neutron
Status: New => Confirmed
** Changed in: neutron
Assignee: (unassigned) => Lucas Alvares Gomes (lucasagomes)
** Changed in: neutron
Importance: Undecided => Medium
** Tags added: ovn
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https://bugs.launchpad.net/bugs/2021968
Title:
[OVN][OVN-BGP-AGENT] Expose subnet CIDR information on NB DB
Status in neutron:
Confirmed
Bug description:
In ML2/OVN, the OVN equivalent of a Neutron Subnet is a DHCP_Option
entry in the OVN Northbound database but, when DHCP is disabled for a
Neutron Subnet no entry is created.
Projects like ovn-bgp-agent does not talk directly to Neutron, instead
it gets information from the OVN Northbound database that is populated
by ML2/OVN.
For the multi-cloud connect with BGP work, the ovn-bgp-agent needs to
know the CIDR of the provider network but, if DHCP is disabled we do
not have that information at handy as the DHCP_Option entry is not
present.
This LP is addressing that problem and proposing storing the subnet's
CIDRs in the Logical_Switch table (the Neutron Network equivalent in
OVN) external_ids column. With that, projects such ovn-bgp-agent can
consume this information while doing it's configuration.
To manage notifications about this bug go to:
https://bugs.launchpad.net/neutron/+bug/2021968/+subscriptions
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