Does OVN support CARP as a Virtual IP synchronization protocol ? (Without
disabling Port Security)
I’ve been trying to make it work but from what I did managed to understand.
CARP uses a mac address with following format 00-00-5E-00-01-{VRID}
It answers the ARP Request for Virtual Addresses with source mac of the
Main Interface but as arp.sha it uses the mac address mentioned above and
from what I could read on OVN source code it doesn’t seems like OVN matches
any arp response with different eth.source and arp.sha fields.
link to OVN code:
https://github.com/ovn-org/ovn/blob/16836c3796f7af68437f9f834b40d87c801dc27c/controller/lflow.c#L2707
https://datatracker.ietf.org/doc/html/rfc5798#section-7.3
https://datatracker.ietf.org/doc/html/rfc5798#section-8.1.2
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