[ Reposting in plantext only]


On Mon, Sep 25, 2017 at 7:32 PM, Or Gerlitz <gerlitz...@gmail.com> wrote:
>
> On Mon, Sep 25, 2017 at 1:23 PM, Simon Horman
> <simon.hor...@netronome.com> wrote:
> > From: John Hurley <john.hur...@netronome.com>
> >
> > 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?
>

Hi Or,

The messages are sent from the FW to the driver. They indicate which
offloaded tunnels are currently active.

>
> 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?


Yes, this would provide the same outcome. Because our firmware already
offered these messages, we chose to support this approach.

>
>
> Or.

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