On Jan 17, 2013, at 2:19 PM, Ben Pfaff <b...@nicira.com> wrote:

> On Fri, Jan 11, 2013 at 09:55:43AM -0800, Romain Lenglet wrote:
>> Signed-off-by: Romain Lenglet <rleng...@vmware.com>
> 
> The schema limits each bridge to at most one IPFIX collector.  Is
> there an a priori reason why this is limited?  It seems to me that one
> could want to send some samples to one set of collectors and other
> samples to another set of collectors.

What do you think about this design:

- allow associating a set of IPFIX collectors with a single datapath, each set 
of collectors having its own observation domain ID

- include the observation domain ID in the OpenFlow sample_ipfix action

- when a packet is sampled, we send a sample to each set of collector which 
observation domain ID that matches the action's observation domain ID


Unfortunately, this can't be implemented right now because there is not enough 
space in the sampling action cookie to pass the observation domain ID to the 
upcall to match with the collectors'.

I don't see how I can do better than my proposed patches until I can get more 
data in an upcall.
--
Romain Lenglet
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