On 4/22/24 22:43, Dumitru Ceara wrote: > On 4/17/24 14:41, Lorenzo Bianconi wrote: >> Similar to what is already implemented for routed e/w traffic, >> introduce pmtud support for e/w traffic between two logical switch ports >> connected to the same logical switch, but running on two different >> hypervisors. >> >> Acked-by: Mark Michelson <mmich...@redhat.com> >> Reported-at: https://issues.redhat.com/browse/FDP-362 >> Signed-off-by: Lorenzo Bianconi <lorenzo.bianc...@redhat.com> >> --- >> Changes since v2: >> - minor changes > > Hi Lorenzo, > > Thanks for the new version. However, this fails multinode CI: > > https://github.com/dceara/ovn/actions/runs/8786825542/job/24112259604 > > It hangs when cleaning up the second test, please see below. > >> Changes since v1: >> - move logic in consider_port_binding >> - add more self-test >> - fix typos >> --- > > [...] > >> >> diff --git a/tests/multinode-macros.at b/tests/multinode-macros.at >> index c04506a52..7a3b5cb50 100644 >> --- a/tests/multinode-macros.at >> +++ b/tests/multinode-macros.at >> @@ -7,6 +7,10 @@ >> m4_define([M_NS_EXEC], >> [podman exec $1 ip netns exec $2 $3]) >> >> +# M_NS_DAEMONIZE([fake_node],[namespace], [command], [pidfile]) >> +m4_define([M_NS_DAEMONIZE], >> + [podman exec $1 ip netns exec $2 $3 & echo $! > $4]) >> + > > This actually stores the PID (in the host pid namespace) of "podman > exec" into $4. Later we wrongfully call "as <container> kill <pid>". > > One way to make this work seems to be to automatically cleanup (similar > to NETNS_DAEMONIZE()): > > # M_NS_DAEMONIZE([fake_node],[namespace], [command], [pidfile]) > m4_define([M_NS_DAEMONIZE], > [podman exec $1 ip netns exec $2 $3 & echo $! > $4 > echo "kill \`cat $4\`" >> cleanup > ] > ) > > The "cleanup" script gets executed at the end of the test, outside any > container so it will kill all "podman exec" commands. If we go this > way, we don't need the explicit "kill" calls below (podman exec is > killed so the command it run, nc, is also killed). > > What do you think, Lorenzo? Mark, Numan, do you have any other ideas? > > >> # M_NS_CHECK_EXEC([fake_node], [namespace], [command], other_params...) >> # >> # Wrapper for AT_CHECK that executes 'command' inside 'fake_node''s >> namespace'. >> diff --git a/tests/multinode.at b/tests/multinode.at >> index 0187382be..d9085b64d 100644 >> --- a/tests/multinode.at >> +++ b/tests/multinode.at >> @@ -154,6 +154,11 @@ check multinode_nbctl lr-nat-add lr0 snat 172.20.0.100 >> 20.0.0.0/24 >> check multinode_nbctl acl-add sw0 from-lport 1002 'ip4 || ip6' >> allow-related >> check multinode_nbctl acl-add sw1 from-lport 1002 'ip4 || ip6' >> allow-related >> >> +# create LB >> +check multinode_nbctl lb-add lb0 10.0.0.1:8080 10.0.0.4:8080 udp >> +check multinode_nbctl ls-lb-add sw0 lb0 >> +M_NS_DAEMONIZE([ovn-chassis-2], [sw0p2], [nc -u -l 8080 >/dev/null 2>&1], >> [nc.pid]) >> + >> m_as ovn-gw-1 ip netns add ovn-ext0 >> m_as ovn-gw-1 ovs-vsctl add-port br-ex ext0 -- set interface ext0 >> type=internal >> m_as ovn-gw-1 ip link set ext0 netns ovn-ext0 >> @@ -207,6 +212,14 @@ M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -q -c 3 >> -i 0.3 -w 2 172.20.1.2 | >> 3 packets transmitted, 3 received, 0% packet loss, time 0ms >> ]) >> >> +m_as ovn-chassis-1 ip route change 170.168.0.0/16 mtu 1000 dev eth1 >> +for i in $(seq 30); do >> +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [sh -c 'dd bs=512 count=2 >> if=/dev/urandom |nc -u 10.0.0.1 8080'], [ignore], [ignore], [ignore]) >> +done >> +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route get 10.0.0.1 dev sw0p1 >> | grep -q 'mtu 942']) >> + >> +m_as ovn-chassis-2 kill $(cat nc.pid) > > This is wrong, nc.pid doesn't make sense inside ovn-chassis-2 > >> + >> AT_CLEANUP >> >> AT_SETUP([ovn multinode pmtu - distributed router - vxlan]) >> @@ -696,6 +709,11 @@ check multinode_nbctl lr-nat-add lr0 snat 172.20.0.100 >> 20.0.0.0/24 >> check multinode_nbctl acl-add sw0 from-lport 1002 'ip4 || ip6' >> allow-related >> check multinode_nbctl acl-add sw1 from-lport 1002 'ip4 || ip6' >> allow-related >> >> +# create LB >> +check multinode_nbctl lb-add lb0 10.0.0.1:8080 20.0.0.3:8080 udp >> +check multinode_nbctl lr-lb-add lr0 lb0 >> +M_NS_DAEMONIZE([ovn-chassis-2], [sw1p1], [nc -u -l 8080 >/dev/null 2>&1], >> [nc.pid]) >> + >> m_as ovn-gw-1 ip netns add ovn-ext0 >> m_as ovn-gw-1 ovs-vsctl add-port br-ex ext0 -- set interface ext0 >> type=internal >> m_as ovn-gw-1 ip link set ext0 netns ovn-ext0 >> @@ -751,6 +769,18 @@ M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -q -c 3 >> -i 0.3 -w 2 172.20.1.2 | >> M_NS_CHECK_EXEC([ovn-gw-1], [ovn-ext0], [ip link set dev ext1 mtu 1100]) >> M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -c 20 -i 0.5 -s 1300 -M do >> 172.20.1.2 2>&1 |grep -q "mtu = 1100"])
Missing space before "grep". >> >> +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route flush dev sw0p1]) >> +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route add 10.0.0.0/24 dev >> sw0p1]) >> +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route add default via >> 10.0.0.1 dev sw0p1]) >> + >> +m_as ovn-chassis-1 ip route change 170.168.0.0/16 mtu 1000 dev eth1 >> +for i in $(seq 30); do >> +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [sh -c 'dd bs=512 count=2 >> if=/dev/urandom |nc -u 10.0.0.1 8080'], [ignore], [ignore], [ignore]) >> +done >> +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route get 10.0.0.1 dev sw0p1 >> | grep -q 'mtu 942']) >> + >> +m_as ovn-chassis-2 kill $(cat nc.pid) > > Same reasoning about wrong nc.pid inside the container. > >> + >> AT_CLEANUP >> >> AT_SETUP([ovn multinode pmtu - gw router - vxlan]) >> @@ -834,6 +864,11 @@ check multinode_nbctl lr-nat-add lr0 snat 172.20.0.100 >> 20.0.0.0/24 >> check multinode_nbctl acl-add sw0 from-lport 1002 'ip4 || ip6' >> allow-related >> check multinode_nbctl acl-add sw1 from-lport 1002 'ip4 || ip6' >> allow-related >> >> +# create LB >> +check multinode_nbctl lb-add lb0 10.0.0.1:8080 20.0.0.3:8080 udp >> +check multinode_nbctl lr-lb-add lr0 lb0 >> +M_NS_DAEMONIZE([ovn-chassis-2], [sw1p1], [nc -u -l 8080 >/dev/null 2>&1], >> [nc.pid]) >> + >> m_as ovn-gw-1 ip netns add ovn-ext0 >> m_as ovn-gw-1 ovs-vsctl add-port br-ex ext0 -- set interface ext0 >> type=internal >> m_as ovn-gw-1 ip link set ext0 netns ovn-ext0 >> @@ -882,4 +917,120 @@ M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -q -c >> 3 -i 0.3 -w 2 172.20.1.2 | >> >> M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -c 20 -i 0.5 -s 1300 -M do >> 172.20.1.2 2>&1 |grep -q "mtu = 1150"]) Same here. >> >> +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route flush dev sw0p1]) >> +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route add 10.0.0.0/24 dev >> sw0p1]) >> +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route add default via >> 10.0.0.1 dev sw0p1]) >> + >> +m_as ovn-chassis-1 ip route change 170.168.0.0/16 mtu 1000 dev eth1 >> +for i in $(seq 30); do >> +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [sh -c 'dd bs=512 count=2 >> if=/dev/urandom |nc -u 10.0.0.1 8080'], [ignore], [ignore], [ignore]) >> +done >> +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route get 10.0.0.1 dev sw0p1 >> | grep -q 'mtu 950']) >> + >> +m_as ovn-chassis-2 kill $(cat nc.pid) > > Here too. > >> + >> +AT_CLEANUP >> + >> +AT_SETUP([ovn multinode pmtu - logical switch - geneve]) >> + >> +# Check that ovn-fake-multinode setup is up and running >> +check_fake_multinode_setup >> + >> +# Delete the multinode NB and OVS resources before starting the test. >> +cleanup_multinode_resources >> + >> +m_as ovn-chassis-1 ip link del sw0p1-p >> +m_as ovn-chassis-2 ip link del sw0p2-p >> + >> +# Reset geneve tunnels >> +for c in ovn-chassis-1 ovn-chassis-2 ovn-gw-1 >> +do >> + m_as $c ovs-vsctl set open . external-ids:ovn-encap-type=geneve >> +done >> + >> +OVS_WAIT_UNTIL([m_as ovn-chassis-1 ip link show | grep -q genev_sys]) >> +OVS_WAIT_UNTIL([m_as ovn-chassis-2 ip link show | grep -q genev_sys]) >> +OVS_WAIT_UNTIL([m_as ovn-gw-1 ip link show | grep -q genev_sys]) >> + >> +# Test East-West switching >> +check multinode_nbctl ls-add sw0 >> +check multinode_nbctl lsp-add sw0 sw0-port1 >> +check multinode_nbctl lsp-set-addresses sw0-port1 "50:54:00:00:00:03 >> 10.0.0.3 1000::3" >> +check multinode_nbctl lsp-add sw0 sw0-port2 >> +check multinode_nbctl lsp-set-addresses sw0-port2 "50:54:00:00:00:04 >> 10.0.0.4 1000::4" >> + >> +m_as ovn-chassis-1 /data/create_fake_vm.sh sw0-port1 sw0p1 >> 50:54:00:00:00:03 10.0.0.3 24 10.0.0.1 1000::3/64 1000::a >> +m_as ovn-chassis-2 /data/create_fake_vm.sh sw0-port2 sw0p2 >> 50:54:00:00:00:04 10.0.0.4 24 10.0.0.1 1000::4/64 1000::a >> + >> +# Create the second logical switch with one port >> +check multinode_nbctl ls-add sw1 >> +check multinode_nbctl lsp-add sw1 sw1-port1 >> +check multinode_nbctl lsp-set-addresses sw1-port1 "40:54:00:00:00:03 >> 20.0.0.3 2000::3" >> + >> +# Create a logical router and attach both logical switches >> +check multinode_nbctl lr-add lr0 >> +check multinode_nbctl lrp-add lr0 lr0-sw0 00:00:00:00:ff:01 10.0.0.1/24 >> 1000::a/64 >> +check multinode_nbctl lsp-add sw0 sw0-lr0 >> +check multinode_nbctl lsp-set-type sw0-lr0 router >> +check multinode_nbctl lsp-set-addresses sw0-lr0 router >> +check multinode_nbctl lsp-set-options sw0-lr0 router-port=lr0-sw0 >> + >> +check multinode_nbctl lrp-add lr0 lr0-sw1 00:00:00:00:ff:02 20.0.0.1/24 >> 2000::a/64 >> +check multinode_nbctl lsp-add sw1 sw1-lr0 >> +check multinode_nbctl lsp-set-type sw1-lr0 router >> +check multinode_nbctl lsp-set-addresses sw1-lr0 router >> +check multinode_nbctl lsp-set-options sw1-lr0 router-port=lr0-sw1 >> + >> +m_as ovn-chassis-2 /data/create_fake_vm.sh sw1-port1 sw1p1 >> 40:54:00:00:00:03 20.0.0.3 24 20.0.0.1 2000::3/64 2000::a >> + >> +check multinode_nbctl lr-nat-add lr0 snat 172.20.0.100 10.0.0.0/24 >> +check multinode_nbctl lr-nat-add lr0 snat 172.20.0.100 20.0.0.0/24 >> + >> +check multinode_nbctl lrp-set-gateway-chassis lr0-sw0 ovn-chassis-1 10 >> +check multinode_nbctl lrp-set-gateway-chassis lr0-sw1 ovn-chassis-2 10 >> + >> +# create some ACLs >> +check multinode_nbctl acl-add sw0 from-lport 1002 'ip4 || ip6' >> allow-related >> +check multinode_nbctl acl-add sw1 from-lport 1002 'ip4 || ip6' >> allow-related >> + >> +check multinode_nbctl lb-add lb0 10.0.0.1:8080 10.0.0.4:8080 udp >> +check multinode_nbctl ls-lb-add sw0 lb0 >> +M_NS_DAEMONIZE([ovn-chassis-2], [sw0p2], [nc -u -l 8080 >/dev/null 2>&1], >> [nc.pid]) >> + >> +m_wait_for_ports_up >> + >> +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -q -c 3 -i 0.3 -w 2 >> 10.0.0.4 | FORMAT_PING], \ >> +[0], [dnl >> +3 packets transmitted, 3 received, 0% packet loss, time 0ms >> +]) >> + >> +# Change ptmu for the geneve tunnel >> +m_as ovn-chassis-1 ip route change 170.168.0.0/16 mtu 1200 dev eth1 >> +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -c 5 -s 1300 -M do 10.0.0.4 >> 2>&1 |grep -q "message too long, mtu=1142"]) Same here. >> + >> +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route flush dev sw0p1]) >> +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route add 10.0.0.0/24 dev >> sw0p1]) >> +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route add default via >> 10.0.0.1 dev sw0p1]) >> + >> +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -q -c 3 -i 0.3 -w 2 >> 20.0.0.3 | FORMAT_PING], \ >> +[0], [dnl >> +3 packets transmitted, 3 received, 0% packet loss, time 0ms >> +]) >> + >> +# Change ptmu for the geneve tunnel >> +m_as ovn-chassis-1 ip route change 170.168.0.0/16 mtu 1100 dev eth1 >> +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ping -c 5 -s 1300 -M do 20.0.0.3 >> 2>&1 |grep -q "message too long, mtu=1042"]) Same here >> + >> +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route flush dev sw0p1]) >> +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route add 10.0.0.0/24 dev >> sw0p1]) >> +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route add default via >> 10.0.0.1 dev sw0p1]) >> + >> +m_as ovn-chassis-1 ip route change 170.168.0.0/16 mtu 1000 dev eth1 >> +for i in $(seq 30); do >> +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [sh -c 'dd bs=512 count=2 >> if=/dev/urandom |nc -u 10.0.0.1 8080'], [ignore], [ignore], [ignore]) >> +done >> +M_NS_CHECK_EXEC([ovn-chassis-1], [sw0p1], [ip route get 10.0.0.1 dev sw0p1 >> | grep -q 'mtu 942']) >> + >> +m_as ovn-chassis-2 kill $(cat nc.pid) > > This too. > >> + >> AT_CLEANUP >> diff --git a/tests/ovn-controller.at b/tests/ovn-controller.at >> index f2c792c9c..0d694b1d9 100644 >> --- a/tests/ovn-controller.at >> +++ b/tests/ovn-controller.at >> @@ -2880,3 +2880,66 @@ AT_CHECK([test x"$port_uuid"=$(ovs-vsctl get port >> $fakech_tunnel _uuid)]) >> OVN_CLEANUP([hv1]) >> AT_CLEANUP >> ]) >> + >> +OVN_FOR_EACH_NORTHD([ >> +AT_SETUP([ovn-controller - pmtud flows]) >> +AT_KEYWORDS([pmtud]) >> + >> +ovn_start >> + >> +net_add n1 >> +sim_add hv1 >> +ovs-vsctl add-br br-phys >> +ovn_attach n1 br-phys 192.168.0.1 >> + >> +check ovn-nbctl ls-add ls1 \ >> + -- lsp-add ls1 lsp1 \ >> + -- lsp-set-addresses lsp1 "00:00:00:00:00:01 192.168.1.1" \ >> + -- lsp-add ls1 lsp2 \ >> + -- lsp-set-addresses lsp2 "00:00:00:00:00:02 192.168.1.2" >> + >> +as hv1 >> +check ovs-vsctl \ >> + -- add-port br-int vif1 \ >> + -- set Interface vif1 external_ids:iface-id=lsp1 \ >> + -- add-port br-int vif2 \ >> + -- set Interface vif2 external_ids:iface-id=lsp2 >> + >> +AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=OFTABLE_CT_ZONE_LOOKUP | >> \ >> + sed -e 's/cookie=0x.*, duration=.*, table/cookie=??, duration=??, >> table/' | \ >> + sed -e >> 's/actions=load:0x.*->NXM_NX_REG13/actions=load:0x?->NXM_NX_REG13/' | \ >> + grep -v NXST_FLOW |sort], [0], [dnl >> + cookie=??, duration=??, table=OFTABLE_CT_ZONE_LOOKUP, n_packets=0, >> n_bytes=0, idle_age=0, priority=0 >> actions=resubmit(,OFTABLE_LOG_INGRESS_PIPELINE) >> + cookie=??, duration=??, table=OFTABLE_CT_ZONE_LOOKUP, n_packets=0, >> n_bytes=0, idle_age=0, priority=100,reg14=0x1,metadata=0x1 >> actions=load:0x?->NXM_NX_REG13[[0..15]],load:0x2->NXM_NX_REG11[[]],load:0x1->NXM_NX_REG12[[]],resubmit(,OFTABLE_LOG_INGRESS_PIPELINE) >> + cookie=??, duration=??, table=OFTABLE_CT_ZONE_LOOKUP, n_packets=0, >> n_bytes=0, idle_age=0, priority=100,reg14=0x2,metadata=0x1 >> actions=load:0x?->NXM_NX_REG13[[0..15]],load:0x2->NXM_NX_REG11[[]],load:0x1->NXM_NX_REG12[[]],resubmit(,OFTABLE_LOG_INGRESS_PIPELINE) >> +]) >> + >> +check ovn-nbctl lsp-add ls1 lsp3 \ >> + -- lsp-set-addresses lsp3 "00:00:00:00:00:03 192.168.1.3" >> +check ovs-vsctl \ >> + -- add-port br-int vif3 \ >> + -- set Interface vif3 external_ids:iface-id=lsp3 >> + >> +AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=OFTABLE_CT_ZONE_LOOKUP | >> \ >> + sed -e 's/cookie=0x.*, duration=.*, table/cookie=??, duration=??, >> table/' | \ >> + sed -e >> 's/actions=load:0x.*->NXM_NX_REG13/actions=load:0x?->NXM_NX_REG13/' | \ >> + grep -v NXST_FLOW |sort], [0], [dnl >> + cookie=??, duration=??, table=OFTABLE_CT_ZONE_LOOKUP, n_packets=0, >> n_bytes=0, idle_age=0, priority=0 >> actions=resubmit(,OFTABLE_LOG_INGRESS_PIPELINE) >> + cookie=??, duration=??, table=OFTABLE_CT_ZONE_LOOKUP, n_packets=0, >> n_bytes=0, idle_age=0, priority=100,reg14=0x1,metadata=0x1 >> actions=load:0x?->NXM_NX_REG13[[0..15]],load:0x2->NXM_NX_REG11[[]],load:0x1->NXM_NX_REG12[[]],resubmit(,OFTABLE_LOG_INGRESS_PIPELINE) >> + cookie=??, duration=??, table=OFTABLE_CT_ZONE_LOOKUP, n_packets=0, >> n_bytes=0, idle_age=0, priority=100,reg14=0x2,metadata=0x1 >> actions=load:0x?->NXM_NX_REG13[[0..15]],load:0x2->NXM_NX_REG11[[]],load:0x1->NXM_NX_REG12[[]],resubmit(,OFTABLE_LOG_INGRESS_PIPELINE) >> + cookie=??, duration=??, table=OFTABLE_CT_ZONE_LOOKUP, n_packets=0, >> n_bytes=0, idle_age=0, priority=100,reg14=0x3,metadata=0x1 >> actions=load:0x?->NXM_NX_REG13[[0..15]],load:0x2->NXM_NX_REG11[[]],load:0x1->NXM_NX_REG12[[]],resubmit(,OFTABLE_LOG_INGRESS_PIPELINE) >> +]) >> + >> +check ovn-nbctl lsp-del lsp3 >> +AT_CHECK([as hv1 ovs-ofctl dump-flows br-int table=OFTABLE_CT_ZONE_LOOKUP | >> \ >> + sed -e 's/cookie=0x.*, duration=.*, table/cookie=??, duration=??, >> table/' | \ >> + sed -e >> 's/actions=load:0x.*->NXM_NX_REG13/actions=load:0x?->NXM_NX_REG13/' | >> + grep -v NXST_FLOW |sort], [0], [dnl >> + cookie=??, duration=??, table=OFTABLE_CT_ZONE_LOOKUP, n_packets=0, >> n_bytes=0, idle_age=0, priority=0 >> actions=resubmit(,OFTABLE_LOG_INGRESS_PIPELINE) >> + cookie=??, duration=??, table=OFTABLE_CT_ZONE_LOOKUP, n_packets=0, >> n_bytes=0, idle_age=0, priority=100,reg14=0x1,metadata=0x1 >> actions=load:0x?->NXM_NX_REG13[[0..15]],load:0x2->NXM_NX_REG11[[]],load:0x1->NXM_NX_REG12[[]],resubmit(,OFTABLE_LOG_INGRESS_PIPELINE) >> + cookie=??, duration=??, table=OFTABLE_CT_ZONE_LOOKUP, n_packets=0, >> n_bytes=0, idle_age=0, priority=100,reg14=0x2,metadata=0x1 >> actions=load:0x?->NXM_NX_REG13[[0..15]],load:0x2->NXM_NX_REG11[[]],load:0x1->NXM_NX_REG12[[]],resubmit(,OFTABLE_LOG_INGRESS_PIPELINE) >> +]) >> + >> +OVN_CLEANUP([hv1]) >> +AT_CLEANUP >> +]) > > Regards, > Dumitru > _______________________________________________ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev
