[ovs-dev] Question about metadata matching

[Junguk Cho]

Oh, really?

Basically, what I understood is datapath keeps some tables based on "struct
sw_flow_key" and  used  it for evaluating if incoming packet is matched or
not.

Is it right or do I miss something?
If I miss something, can you forward me to metadata matching in datapath?

Thanks,
Junguk


2014-08-26 13:40 GMT-06:00 Ben Pfaff <blp at nicira.com>:

> On Tue, Aug 26, 2014 at 01:36:04PM -0600, Junguk Cho wrote:
> > Hi, I have a simple question.
> > When we use metadata as flow-rule,
> > Does all traffic forward ofproto to match it because there is no match
> > field in "struct sw_flow" in datapath?
>
> No, metadata matching still allows for kernel forwarding.  There's no
> need to send every packet to userspace.
>