Thanks Ben for some insights on userspace datapath.
I had a quick peek into the file, INSTALL.space and followed the instructions.
Its working fine for pushing a MPLS header for flows. i.e.,
sudo ovs-ofctl add-flow br0
in_port=1,actions=push_mpls:0x8847,set_field:100-\>mpls_label,output:2 -O
OpenFlow13
I am able to dump the flows using tcpdump and could see the label.
But, when I try to attempt in pushing two mpls header for a flow, I could not
see two labels while using tcpdump that means, the packets are not flowing
through it. So, I had an idea to make it work.
What I am gonna do is, send a MPLS header flow from table=0 to the table=1;then
send the flow from table=1 to the output:2 with another MPLS header. Is there a
way to do this? Or please advice and give some insights on this to make it work?
Thanks much,
Madhusudhan
On Friday, February 7, 2014 8:19 AM, Ben Pfaff <b...@nicira.com> wrote:
On Fri, Feb 07, 2014 at 07:43:55AM -0800, Madhusudhan Kandadai wrote:
> Can you please let me know the differences between userspace datapaths
> and kernal datapaths?
INSTALL.userspace explains how to use the userspace datapath.
> With that being said, MPLS push,pop,match are happening at user space
> data paths. I appreciate if you can point me the documentation, or
> with examples to get familiar with this stuffs.
How do you know that you are using the userspace datapath if you don't
know what the userspace datapath is?
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