On Tue, Jun 28, 2016 at 10:28 PM, Jesse Gross <je...@kernel.org> wrote:
> Some tunnel protocols, such as Geneve, have a bit in the tunnel
> header to indicate that it is an OAM packet. This means that the
> packet should be processed as a tunnel control frame and not be
> passed onto connected links.
>
> When BFD is used inside of a tunnel it is often used in this control
> capacity, so this adds an option to enable marking the outer header
> when the output port is a tunnel that supports the OAM concept. It is
> also possible to use tunnels as point-to-point links that are simply
> carrying BFD as payload, so this is not always turned on.
>
> Conceptually, this may also apply to other types of packets locally
> generated by the switch, most obviously CFM. However, BFD seems to
> be most commonly used for this type of tunnel monitoring application
> so this only adds the option to BFD for the time being to avoid
> unnecessarily adding configuration knobs that might never get used.
>
> Signed-off-by: Jesse Gross <je...@kernel.org>
> ---
I got white space warning from git am:-

Applying: bfd: Allow setting OAM bit when encapsulated in tunnel.

/home/pravin/ovs/ovs/w8/.git/rebase-apply/patch:210: trailing whitespace.

ofproto_dpif_send_packet(const struct ofport_dpif *ofport, bool oam,

warning: 1 line adds whitespace errors.

---
Otherwise looks good.

Acked-by: Pravin B Shelar <pshe...@ovn.org>
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