On Tue, Nov 15, 2011 at 2:08 PM, Ben Pfaff <b...@nicira.com> wrote:
> On Tue, Nov 15, 2011 at 01:51:42PM +0900, Jari Sundell wrote:
>> The new learn action seems to be lacking a way to add flows with the
>> resubmit action, which would be useful when the routing happens after
>> the flow is created. Is this a planned feature?
>
> It's not a planned feature.
>
> Can you give an example?

Basically I got a host with multiple virtual machines, and to keep the
flow table sizes reasonable I've split up the filtering and routing
into two parts; filtering what an instance is allowed to send, etc, in
the first stage, then in the second stage do filtering what an
instance is allowed to receive and sending to the right port.

So in order to avoid asking the controller for every single new
connection made from the instance, the first stage needs to be able to
add flows that can pass packets to the second stage table. If the
requested feature is not available, I'll have to look into adding
extra tables duplicating the second stage which instead saves the
output port in the registry... Basically it'll get very messy.

Jari Sundell
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