Files
neutron/releasenotes/notes/disable-activation-strategy-rarp-for-dpdk-ports-7f9164e57c578b95.yaml
Ihar Hrachyshka e16ab24cd8 ovn: Disable activation-strategy=rarp for DPDK ports
When vhosuser* is used, qemu won't send RARP; instead, it will request
guest's virtio to announce the guest. Which ultimately generates GARP
(for IPv4) and NA (for IPv6) addresses.

This results in port not being activated until it's too late (only when
nova updates neutron via api).

It's better to have activation-strategy disabled until ovn-controller
learns how to activate with GARPs and NAs.

Related-Bug: #2092407
Change-Id: I71e6ec0d87adec629262c5a488bc9739f78ad6f8
2025-01-03 12:30:26 -05:00

10 lines
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YAML

---
fixes:
- |
For OVN DPDK ports, live migration activation strategy that expects a RARP
frame sent by QEMU is no longer used. This is because for DPDK ports, QEMU
does not send a RARP frame, which affects the time to recover network
connectivity for DPDK ports after live migration is complete. Note that
because of the change, some low number of duplicate packets from these
ports may be observed during live migration.