** Description changed:
OpenStack Usurri/OVN SR-IOV instances are unable to connect to the
metadata service despite DHCP and normal traffic work.
The 169.254.169.254 metadata route is directed at the DHCP port IP, and
no arp reply is received by the VM for this IP. Diagnosis finds that the
ARP reply returns from the ovnmeta namespace on the chassis hosting the
external port but is dropped inside OVS.
20.03.2-0ubuntu0.20.04.2 backported the following patch:
Do not forward traffic from localport to localnet ports (LP: #1943266)
(d/p/lp-1943266-physical-do-not-forward-traffic-from-localport-to-a-.patch)
- This patch broke metadata for SR-IOV external prots and was fixed in
1148580290d0ace803f20aeaa0241dd51c100630 "Don't suppress localport traffic
directed to external port":
+ This patch broke metadata for SR-IOV external ports and was fixed in
1148580290d0ace803f20aeaa0241dd51c100630 "Don't suppress localport traffic
directed to external port":
https://github.com/ovn-org/ovn/commit/1148580290d0ace803f20aeaa0241dd51c100630
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https://bugs.launchpad.net/bugs/1977669
Title:
Metadata broken for SR-IOV external ports
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