On Wed, Mar 20, 2019, 11:43 PM Ben Pfaff <[email protected]> wrote:

> On Wed, Mar 20, 2019 at 05:06:36PM +0530, Numan Siddique wrote:
> > On Tue, Feb 12, 2019 at 8:41 AM Ben Pfaff <[email protected]> wrote:
> > > I don't understand why icmp4.frag_mtu is so heavily special-cased that
> > > it only works inside nested actions.
> >
> > The idea of this patch is to add new OVN fields which can't be translated
> > to OVS fields.
> > We cannot use icmp4.frag_mtu  as a normal action.
> >
> > Eg.
> >
> > match=..., action=(eth.src = 30:54:00:00:00:03;  icmp4.code = 3;
> > icmp4.frag_mtu = 1442; ...)
> >
> > We can use these fields only with in OVN actions which gets translated to
> > "controller" OVS action.
> > When ovn-controller gets the packet-in, it can set these fields.
>
> The assignment itself could be translated to a controller OVS action.
>

Now I understand. Thanks. I will work on it.

Numan
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