On Wed, Jun 12, 2019 at 07:18:27PM -0400, Vasu Dasari wrote: > Thanks Ben. Meanwhile I think I found an bug in OVS 2.9.0 with stale ARP > entries after a bridge is deleted. > > I ran my tunneling experiment successfully. Used mininet to simulate the > environment. After quitting the mininet, switch s1 is deleted. But, I still > see the ARP entries in OVS.
Looks like when route_table_valid is false we also need to call tnl_neigh_cache_flush() otherwise you will need to wait the ARP entry in the cache to expire (15min?) which is quite a long time. Do you think you can work on a patch? > root@mn1:~# ovs-vsctl show > f6af5f1c-a11c-435f-9b03-7317f364ae48 > Manager "ptcp:6640" > ovs_version: "2.9.0" > > Even thought there is no s1, I still see entries here. > root@mn1:~# ovs-appctl tnl/arp/show > IP MAC Bridge > ========================================================================== > 172.168.1.1 02:42:ac:14:00:02 s1 > 172.168.1.2 02:42:ac:14:00:03 s1 > 10.0.0.10 82:ec:29:c0:bc:ef s1 > 10.0.0.1 d2:54:11:f0:95:df s1 > > > Just for completeness, this is what I had to do to fix my configuration. > > Figured out what was wrong with my configuration. > > Modify my bridge s1 to be: > > ovs-vsctl --may-exist add-br s1 \ > -- set Bridge s1 datapath_type=netdev \ > -- set bridge s1 fail-mode=standalone \ > other_config:hwaddr=$(cat /sys/class/net/eth1/address) > > Add the flows: > ovs-ofctl add-flow s1 "priority=1,in_port=s1-eth1 actions=vxlan" > ovs-ofctl add-flow s1 "priority=1,in_port=vxlan actions=s1-eth1" > ovs-ofctl add-flow s1 "priority=0 actions=NORMAL" > > ip addr add 1.1.1.1/24 dev s1 > ip link set s1 up > ip addr flush dev eth1 2>/dev/null > ip link set eth1 up > > ovs-appctl tnl/arp/set s1 1.1.1.2 00:00:01:00:00:02 Yeah, that will replace the old entry with the new one. fbl > > *Vasu Dasari* > > > On Tue, Jun 11, 2019 at 6:22 PM Ben Pfaff <b...@ovn.org> wrote: > > > On Tue, Jun 11, 2019 at 03:17:24PM -0400, Vasu Dasari wrote: > > > I am running into an issue which sounds pretty basic, probably I might be > > > missing something. > > > > I think you're trying to use kernel tools to configure userspace > > tunnels. Did you read Documentation/howto/userspace-tunneling.rst? > > > _______________________________________________ > discuss mailing list > disc...@openvswitch.org > https://mail.openvswitch.org/mailman/listinfo/ovs-discuss _______________________________________________ discuss mailing list disc...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-discuss