[ovs-discuss] add-flow normalization question

YIMIN CHEN ymchen.nbzj at gmail.com
Tue Jul 10 02:07:24 UTC 2012


Hi,

I am experimenting with ovs-ofctl tool to manually add flows to
openvswitch1.4.2. I am getting an issue with add-flow that I couldn't
figure out what I did wrong.

What I ran into is that whenever I tried to add a flow matching an
destination IP, that match does not show up in the flow entry. Below
is an example of what I did:

ymchen at ymchen-lnx:~/ymchen/openvswitch-1.4.2$ sudo ovs-ofctl add-flow
br0 nw_dst=11.1.1.5,actions=output:3
Jul 10 10:01:06|00001|ofp_util|INFO|normalization changed ofp_match, details:
Jul 10 10:01:06|00002|ofp_util|INFO| pre: nw_dst=11.1.1.5
Jul 10 10:01:06|00003|ofp_util|INFO|post:  <==== nw_dst is gone!

Now if I dump flows, you can see nw_dst=11.1.1.5 is no longer there:

ymchen at ymchen-lnx:~/ymchen/openvswitch-1.4.2$ sudo ovs-ofctl
dump-flows br0NXST_FLOW reply (xid=0x4):
 cookie=0x0, duration=3.18s, table=0, n_packets=0, n_bytes=0, actions=output:3

Could anyone shed some light on what I did wrong?

Thanks!
Yimin



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