[ovs-discuss] Learn action in group table

[Davide Sanvito]

Hi Ben,
if I try to add a learn action to the action set using write-action, the
switch returns an error OFPET_BAD_ACTION,OFPBAC_BAD_TYPE. From a comment
in lib/ofp-actions.c it seems that OVS does not allow adding non-OF actions
to an action-set.
One last question: if group buckets are like action-sets (a comment in
ofproto/ofproto-dpif-xlate.c says "Note that group buckets are action sets
[...]"), why does the switch not return any error?
By the way you perfectly solved my doubt, thank you!
Davide


2015-10-01 18:07 GMT+02:00 Ben Pfaff <blp at nicira.com>:

> I don't think OVS currently prohibits them from appearing within
> Write-Actions, but they won't have any useful effect there.
>
> On Thu, Oct 01, 2015 at 01:40:02PM +0200, Davide Sanvito wrote:
> > Thank you for your reply. Does this mean that a learn action can only be
> > applied within a Apply-Actions instruction and so it cannot be added to
> the
> > action set via a Write-Actions instruction nor inside a bucket in a group
> > entry?
> > Thank you!
> > Davide
> >
> > 2015-09-30 8:08 GMT+02:00 Ben Pfaff <blp at nicira.com>:
> >
> > > On Mon, Sep 21, 2015 at 04:11:28PM +0200, Davide Sanvito wrote:
> > > > I'm trying to execute a learn action to table 0 from a group entry.
> The
> > > > application is written with the Ryu framework and by using ovs-ofctl
> I
> > > can
> > > > confirm that buckets have the correct learn action associated and
> that
> > > > packets go through the group table.
> > > >
> > > > By the way no flow entry is added to table 0 by the execution of the
> > > learn
> > > > action.
> > > >
> > > > Is this a bug? Is the learn action supported as an action in a group
> > > entry?
> > >
> > > A learn action in an action set doesn't currently have any effect.
> > >
>
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