[ovs-discuss] Early addition of flows in the kernel.

Jesse Gross jesse at nicira.com
Tue Oct 13 16:22:37 UTC 2015

On Tuesday, October 13, 2015, jimson chacko <jimsonchacko at gmail.com> wrote:

> Hi,
> Can you give an example flow which has one entry in the user space and
> multiple entries in the kernel ?

Please see the explanation Ben just posted here:

> Ok. Now I know OVS is designed to push the flows in the kernel only during
> handle_upcalls. But there are exceptions. One is when the flow is deleted.
> One is when a flow (which is already present in the kernel) is modified. In
> these cases the effect is immediate. That is, vswitchd will sync the flow
> deletion/modification to the kernel without waiting for packets. Am I
> correct ?

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