[ovs-dev] switch local port

Gaetano Catalli gaetano.catalli at gmail.com
Fri Feb 25 13:45:52 UTC 2011


Ok. Thanks for your explanation. I think my issue is solved!

On Thu, Feb 24, 2011 at 6:29 PM, Ben Pfaff <blp at nicira.com> wrote:
> On Thu, Feb 24, 2011 at 04:04:43PM +0100, Gaetano Catalli wrote:
>> >> Why this tap device could be opened more than one time?
>> >
>> > Any network device can be opened multiple times with netdev_open().
>> >
>> I apologise for bothering you with all these questions about the same topic.
>> Can you explain me why there is difference between the first user and
>> the following users?
>
> The first user is the one that causes the tap device to be created.  It
> is normally do_add_port() in lib/dpif-netdev.c, for a tap device.  This
> is the client that wants to use the device to send and receive packets.
>
>> I'm working at netdev level, so I can't see this difference, which is
>> probably observable at an higher level.
>
> OK.  I hope that my explanation helps.
>



-- 
gaetano catalli




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