[ovs-dev] What is datapath?

[Jesse Gross]

On Wed, Nov 21, 2012 at 6:08 PM, 李强 <jaycelq at gmail.com> wrote:
> Hi, all.
>      I came up with some problems when  I studied the openvswitch.
>      Can you explain it to me what a datapath definitely mean? Why it must
> be implented in kernel mode? If I build openvswitch in userspace, does that
> mean the advantage of openvswitch is missing?

A datapath is just the portion that handles fast path packet
processing.  The kernel version has higher performance but requires
more privileges to install and is OS-specific.