On Thu, Feb 28, 2013 at 05:46:16PM -0800, Jesse Gross wrote:
> On Thu, Feb 28, 2013 at 4:38 PM, Simon Horman <ho...@verge.net.au> wrote:
> > On Thu, Feb 28, 2013 at 11:12:41AM +0000, Rajahalme, Jarno (NSN - FI/Espoo) 
> > wrote:
> >> On Feb 28, 2013, at 11:15 , ext Simon Horman wrote:
> >> > * Implement recirculation and a host of more sophisticated MPLS features
> >> >  including:
> >> >  - copy_ttl_in
> >> >  - copy_ttl_out
> >> >  - L3+ actions on MPLS frames (e.g. pop_mpls(0x800),set_ttl)
> >> >  - multi-level mpls_pop and mpls_push
> >> > * Other more specific datapath todo items listed in the changelog of
> >> >  "datapath: Add basic MPLS support to kernel"
> >> >
> >>
> >> Am I right in assuming that something like a "resubmit" action would be
> >> needed for recirculation in the kernel datapath? I have earlier
> >> implemented something like "recirculation" (as I understand it) with a
> >> special vport that provides it's output as input to the datapath. I.e., I
> >> have used the OVS_ACTION_ATTR_OUTPUT to implement "recirculation" with a
> >> "loopback vport". It would be nice to get rid of that with a more
> >> explicit mechanism.
> >>
> >> Or have I completely misunderstood what you mean with recirculation here?
> >
> > My current thought is that recirculation could be implemented using
> > a new action (I had in mind to call it "recirculate") as you suggest.
> > And I intend to try and implement that.
> >
> > It is not entirely clear to me that is quite what Jesse has in mind
> > or that it will work as expected. We shall see.
> 
> Yes, that's what I had in mind.

Thanks, got it.
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