[ovs-discuss] IP Learning Pipeline

Paul Greenberg greenpau at outlook.com
Thu May 10 21:06:45 UTC 2018


Hi All,

There are use cases where switching traffic based on logical input port is not possible. For example, when traffic comes from VXLAN interface and the destination MAC address is always the same (b/c) a vendor designes to overwrite destination MAC of an inner packet with the MAC address of the remote VTEP (in this case OVS). In that case MAC learning based on ARP becomes an issue.

Putting aside things like switching to a vendor supporting GENEVE, what is the most efficient way to perform L3 lookups in OVN managed OVS?

One way is creating a L3 flow matching on IP and set action to a logical output port register. However, that is very much manual.

Any ideas to make it more dynamic?

Regards,
Paul
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