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.
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