Re: [PATCH net-next 7/7] nfp: flower vxlan neighbour keep-alive

On Mon, Sep 25, 2017 at 1:23 PM, Simon Horman
[off-list ref] wrote:

From: John Hurley <redacted>

Periodically receive messages containing the destination IPs of tunnels
that have recently forwarded traffic. Update the neighbour entries 'used'
value for these IPs next hop.

Are you proactively sending keep alive messages from the driver or the
fw? what's wrong with the probes sent by the kernel NUD subsystem?

In our driver we also update the used value for neighs of offloaded
tunnels, we do it based on flow counters for the offloaded tunnels
which is an evidence for activity. Any reason for you not to apply a
similar practice?

Or.