[ovs-dev] [PATCH ovn v11 0/4] ARP and Floating IP Fixes

[Numan Siddique]

On Thu, Jul 8, 2021 at 10:44 AM Mark Michelson <mmichels at redhat.com> wrote:
>
> This patch series aims to fix issues seen in OpenStack deployments when
> floating IPs were assigned to routers, and those floating IPs were not
> part of any subnet configured on that router.
>
> This series has gone through several transformations, but this
> incarnation is a four patch series:
>
> Patch 1 is a small cleanup in ovn-northd.c to factor out peer retrieval
> into its own function.
>
> Patch 2 alters northd to install logical flows to make it so that
> routers can reach NAT and load balancer addresses on their neighbors
> without the need to configure static routes or MAC bindings.
>
> Patch 3 recognizes that patch 2 may not always be desired, so it makes
> the behavior opt-in.
>
> Finally, patch 4 addresses the situation for when the pre-allocated
> logical flows cannot be used. For this situation, we will flood the ARP
> request if the TPA is for a configured IP address that is outside the
> connected routers' subnets.
> ---
> v10 -> v11:
> * Fixed memory leak in patch 2

Thanks.

For the entire series:

Acked-by: Numan Siddique <numans at ovn.org>

Numan

> ---
>
> Mark Michelson (4):
>   northd: Factor peer retrieval into its own function.
>   northd: Add IP routing and ARP resolution flows for NAT/LB addresses.
>   northd: Add options to automatically add routes for NATs and LBs.
>   northd: Flood ARPs to routers for "unreachable" addresses.
>
>  northd/ovn-northd.8.xml |  15 +-
>  northd/ovn-northd.c     | 416 +++++++++++++++++++++++++++++-----------
>  northd/ovn_northd.dl    | 169 +++++++++++++---
>  ovn-nb.xml              |  33 +++-
>  tests/ovn-nbctl.at      |   3 +
>  tests/ovn-northd.at     | 345 +++++++++++++++++++++++++++++++++
>  tests/system-ovn.at     | 102 ++++++++++
>  utilities/ovn-nbctl.c   |  27 ++-
>  8 files changed, 969 insertions(+), 141 deletions(-)
>
> --
> 2.31.1
>
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