[ovs-discuss] OpenVSwitch flow forwarding
jesse at nicira.com
Tue Feb 7 01:42:39 UTC 2012
On Mon, Feb 6, 2012 at 3:50 PM, Masood Moshref Javadi
<masood.moshref.j at gmail.com> wrote:
> I want to figure out the workflow of a packet in the openvswitch (using the
> kernel module). Basically, I have these questions:
> 1) When a flow comes where it will be compared to the rules?
Packets for new flows are handled in userspace with a classifier that
is capable of handling wildcards. Future packets in that flow are
handled by an exact match table in the kernel.
> 2) Is there any difference between rules with wildcard field and exact
> 3) what is the effect of huge number of rules on the performance of
The userspace table is mostly proportional to the number of unique
sets of wildcards. The kernel table is not affected by the number of
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