Yes, this is expected. The ovs-vsctl commands you are executing are
manipulating a database that describes the configuration you'd like. The other
commands are retrieving the actual configuration of the system. The last
paragraph of this FAQ entry provides some information about how to notice
invalid ports:
Q: How can I figure out the OpenFlow port number for a given port?
A: The OFPT_FEATURES_REQUEST message requests an OpenFlow switch to
respond with an OFPT_FEATURES_REPLY that, among other information,
includes a mapping between OpenFlow port names and numbers. From a
command prompt, "ovs-ofctl show br0" makes such a request and
prints the response for switch br0.
The Interface table in the Open vSwitch database also maps OpenFlow
port names to numbers. To print the OpenFlow port number
associated with interface eth0, run:
ovs-vsctl get Interface eth0 ofport
You can print the entire mapping with:
ovs-vsctl -- --columns=name,ofport list Interface
but the output mixes together interfaces from all bridges in the
database, so it may be confusing if more than one bridge exists.
In the Open vSwitch database, ofport value -1 means that the
interface could not be created due to an error. (The Open vSwitch
log should indicate the reason.) ofport value [] (the empty set)
means that the interface hasn't been created yet. The latter is
normally an intermittent condition (unless ovs-vswitchd is not
running).
--Justin
On May 16, 2013, at 1:24 AM, akash sharma <akashsharma.0...@gmail.com> wrote:
> Hi,
>
> I want to verify that all the ports which are added to the ovs switch are
> present in the ovs list/show commands as well as the feature reply message
> from switch to the controller.
>
> I am adding a port to the bridge which does not exist physically.
> After the addition of port, the added port is present in the following
> command results:
> ovs-vsctl show
> ovs-vsctl list interface
> ovs-vsctl port
>
> But the port is not shown in the following ovs-ofctl commands:
> ovs-ofctl show br0
> ovs-ofctl dump-ports br0
> ovs-ofctl dump-ports-desc br0
>
> Also, the feature reply message sent by the switch to the controller does not
> contain the added port.
> It contains ports which are physically present(connected to another machine).
>
> Please confirm whether this is desired behavior or I am missing something.
>
> Regards,
> Akash
> _______________________________________________
> discuss mailing list
> discuss@openvswitch.org
> http://openvswitch.org/mailman/listinfo/discuss
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