[ovs-dev] Flows deletion when a port becomes inactive

[Daniele Venturino]

It looks like our test setup is having some problems. I'll look into it.

For now, ignore this...

Best Regards,
Daniele
Il 28 gen 2016 5:11 PM, "Daniele Venturino" <daniele.venturino at m3s.it> ha
scritto:

> Hi,
> I was running some tests on Mininet and Open vSwitch and I noticed
> something weird. I'm using few bridges configured with RSTP enabled and no
> controller.
> I then generate some traffic and I'm able to see the flows installed on
> each bridge through the command
>
> *ovs-ofctl dump-flows br0*
>
> If I disable an active port (from which the traffic was flowing), I can
> still see the flows of that port, while I'd expect them to be moved
> (updated) on a new active path connecting the two ping endpoints.
>
> If I repeat the same test, but setting the switches in normal mode with
>
> *ovs-ofctl add-flow br0 action=NORMAL*
>
> I can see the forwarding tables though the command:
>
> *ovs-appctl fdb/show br0*
>
> and if I disable a network interface where a MAC was learned, its entries
> are correctly removed from RSTP, with this piece of code in
> ofproto/ofproto-dpif.c:
>
> * while ((ofport = rstp_check_and_reset_fdb_flush(ofproto->rstp, &rp))) {*
> *            if (!rstp_shift_root_learned_address(ofproto->rstp)*
> *                || rstp_get_old_root_aux(ofproto->rstp) != ofport) {*
> *                bundle_flush_macs(ofport->bundle, false);*
> *            }*
> *        }*
>
> Is it ok for the flows not to be deleted when a port becomes inactive? Am
> I missing something?
>
> Best Regards,
> Daniele
>
>
>
>