Description of problem: ping to dnat failed intermittently in gateway router mode Version-Release number of selected component (if applicable): ovn-2021-21.12.0-30 openvswitch2.15-2.15.0-81.el8fdp.x86_64 How reproducible: Always Steps to Reproduce: 1. we need 2 machines, and machine1 can ssh to machine2 without password 2. machine1 has address 1.1.5.25, machine2 has 1.1.5.26 3. machine1 has another nic which is connected to another nic on machine2 4. run following script on machine1 ip_subnet=5 mac_veth2_hv0="00:00:00:01:00:02" mac_veth2_hv1="00:00:00:01:01:02" ip4_veth2_hv0="172.16.0.1" ip6_veth2_hv0="2000::1" ip4_veth2_hv1="172.16.1.1" ip6_veth2_hv1="2001::1" ip4_external1_hv1="192.$ip_subnet.1.1" ip6_external1_hv1="3000:$ip_subnet::1" ip4_external2_hv1="192.$ip_subnet.1.2" ip6_external2_hv1="3000:$ip_subnet::2" # second card on machine 1 nic_test2_ser=enp5s0f1 # second card on machine 2 nic_test2_cli=ens3f1 # name of machine 2 client1="dell-per740-42.rhts.eng.pek2.redhat.com" systemctl start openvswitch systemctl start ovn-northd ovn-nbctl set-connection ptcp:6641 ovn-sbctl set-connection ptcp:6642 ovs-vsctl set open . external_ids:system-id=hv1 external_ids:ovn-remote=tcp:1.1.5.25:6642 external_ids:ovn-encap-type=geneve external_ids:ovn-encap-ip=1.1.5.25 systemctl restart ovn-controller ssh -q $client1 systemctl start openvswitch ssh -q $client1 "ovs-vsctl set open . external_ids:system-id=hv0 external_ids:ovn-remote=tcp:1.1.5.25:6642 external_ids:ovn-encap-type=geneve external_ids:ovn-encap-ip=1.1.5.26" ssh -q $client1 systemctl restart ovn-controller ssh -q $client1 "ovs-vsctl add-br br-nat" ssh -q $client1 "ovs-vsctl set open . external_ids:ovn-bridge-mappings=nattest:br-nat" ssh -q $client1 "ip link set br-nat up" ssh -q $client1 "ovs-vsctl add-port br-nat $nic_test2_cli" ssh -q $client1 "ip link set $nic_test2_cli up" ip netns add server0 ip link add veth0_s0 netns server0 type veth peer name veth0_s0_p ip netns exec server0 ip link set veth0_s0 up ip netns exec server0 ip link set lo up ip netns exec server0 ip link set veth0_s0 address $mac_veth2_hv1 ip netns exec server0 ip addr add ${ip4_veth2_hv1}/24 dev veth0_s0 ip netns exec server0 ip -6 addr add ${ip6_veth2_hv1}/64 dev veth0_s0 ip netns exec server0 ip route add default via 172.16.1.254 dev veth0_s0 ip netns exec server0 ip -6 route add default via 2001::a dev veth0_s0 ovs-vsctl add-port br-int veth0_s0_p ip link set veth0_s0_p up ovs-vsctl set interface veth0_s0_p external_ids:iface-id=ls2p1 ovn-nbctl ls-add ls1 ovn-nbctl lsp-add ls1 ls1p1 ovn-nbctl lsp-set-addresses ls1p1 $mac_veth2_hv0 ovn-nbctl ls-add ls2 ovn-nbctl lsp-add ls2 ls2p1 ovn-nbctl lsp-set-addresses ls2p1 $mac_veth2_hv1 ovn-nbctl lr-add lr1 ovn-nbctl lrp-add lr1 lr1-ls1 00:00:09:09:00:01 172.16.0.254/24 2000::a/64 ovn-nbctl lrp-add lr1 lr1-ls2 00:00:09:09:00:02 172.16.1.254/24 2001::a/64 ovn-nbctl lrp-add lr1 lr1-ls0 00:00:09:09:00:03 192.$ip_subnet.1.254/24 3000:$ip_subnet::a/64 ovn-nbctl lsp-add ls1 ls1-lr1 ovn-nbctl lsp-set-type ls1-lr1 router ovn-nbctl lsp-set-addresses ls1-lr1 00:00:09:09:00:01 ovn-nbctl lsp-set-options ls1-lr1 router-port=lr1-ls1 ovn-nbctl lsp-add ls2 ls2-lr1 ovn-nbctl lsp-set-type ls2-lr1 router ovn-nbctl lsp-set-addresses ls2-lr1 00:00:09:09:00:02 ovn-nbctl lsp-set-options ls2-lr1 router-port=lr1-ls2 ovn-nbctl ls-add ls0 ovn-nbctl lsp-add ls0 ls0-lr1 ovn-nbctl lsp-set-addresses ls0-lr1 00:00:09:09:00:03 ovn-nbctl lsp-set-type ls0-lr1 router ovn-nbctl lsp-set-options ls0-lr1 router-port=lr1-ls0 ovn-nbctl lsp-add ls0 ln_port ovn-nbctl lsp-set-addresses ln_port unknown ovn-nbctl lsp-set-type ln_port localnet ovn-nbctl lsp-set-options ln_port network_name=nattest ovs-vsctl add-br br-nat ovs-vsctl set open . external_ids:ovn-bridge-mappings=nattest:br-nat ip link set br-nat up ovs-vsctl add-port br-nat $nic_test2_ser ip link set $nic_test2_ser up ip netns add server1 ip link add veth0_s1 netns server1 type veth peer name veth0_s1_p ip netns exec server1 ip link set veth0_s1 up ip netns exec server1 ip addr add ${ip4_external1_hv1}/24 dev veth0_s1 ip netns exec server1 ip -6 addr add ${ip6_external1_hv1}/24 dev veth0_s1 ip netns exec server1 ip route add default via 192.$ip_subnet.1.254 dev veth0_s1 ip netns exec server1 ip -6 route add default via 3000:$ip_subnet::a dev veth0_s1 ovs-vsctl add-port br-nat veth0_s1_p ip link set veth0_s1_p up ssh -q $client1 ip netns add client0 ssh -q $client1 ip link add veth0_c0 netns client0 type veth peer name veth0_c0_p ssh -q $client1 ip netns exec client0 ip link set lo up ssh -q $client1 ip netns exec client0 ip link set veth0_c0 up ssh -q $client1 ip netns exec client0 ip addr add ${ip4_veth2_hv0}/24 dev veth0_c0 ssh -q $client1 ip netns exec client0 ip -6 addr add ${ip6_veth2_hv0}/64 dev veth0_c0 ssh -q $client1 ip netns exec client0 ip link set veth0_c0 address $mac_veth2_hv0 ssh -q $client1 ip netns exec client0 ip route add default via 172.16.0.254 dev veth0_c0 ssh -q $client1 ip netns exec client0 ip -6 route add default via 2000::a dev veth0_c0 ssh -q $client1 ovs-vsctl add-port br-int veth0_c0_p ssh -q $client1 ip link set veth0_c0_p up ssh -q $client1 ovs-vsctl set interface veth0_c0_p external_ids:iface-id=ls1p1 ip netns exec server0 ping6 ${ip6_veth2_hv0} -c 3 ovn-nbctl set logical_router lr1 options:chassis=hv1 ovn-nbctl --may-exist lr-nat-add lr1 dnat_and_snat 3001::1 ${ip6_veth2_hv1} ovn-nbctl --may-exist lr-nat-add lr1 dnat_and_snat 3001::1 ${ip6_veth2_hv1} ip netns exec server0 ping6 $ip6_external1_hv1 -c 5 ovs-ofctl show br-nat ovs-appctl fdb/show br-nat ovn-nbctl --if-exists lr-nat-del lr1 dnat_and_snat 3001::1 ovn-nbctl --may-exist lr-nat-add lr1 dnat 3001::41 ${ip6_veth2_hv1} ovn-nbctl --may-exist lr-nat-add lr1 dnat 3001::41 ${ip6_veth2_hv1} ip netns exec server1 ping6 3001::41 -c 1 ovs-appctl fdb/show br-nat ip netns exec server1 ping6 3001::41 -c 5 ovs-appctl fdb/show br-nat Actual results: + ovs-ofctl show br-nat OFPT_FEATURES_REPLY (xid=0x2): dpid:0000a0369fab36b6 n_tables:254, n_buffers:0 capabilities: FLOW_STATS TABLE_STATS PORT_STATS QUEUE_STATS ARP_MATCH_IP actions: output enqueue set_vlan_vid set_vlan_pcp strip_vlan mod_dl_src mod_dl_dst mod_nw_src mod_nw_dst mod_nw_tos mod_tp_src mod_tp_dst 1(patch-ln_port-t): addr:8e:99:60:29:66:d0 config: 0 state: 0 speed: 0 Mbps now, 0 Mbps max 2(enp5s0f1): addr:a0:36:9f:ab:36:b6 config: 0 state: 0 current: 10GB-FD advertised: 10GB-FD FIBER AUTO_PAUSE supported: 10GB-FD FIBER AUTO_PAUSE speed: 10000 Mbps now, 10000 Mbps max 3(veth0_s1_p): addr:16:61:f4:5e:d6:e8 config: 0 state: 0 current: 10GB-FD COPPER speed: 10000 Mbps now, 0 Mbps max LOCAL(br-nat): addr:a0:36:9f:ab:36:b6 config: 0 state: 0 speed: 0 Mbps now, 0 Mbps max OFPT_GET_CONFIG_REPLY (xid=0x4): frags=normal miss_send_len=0 ...... + ip netns exec server1 ping6 3001::41 -c 1 PING 3001::41(3001::41) 56 data bytes 64 bytes from 3001::41: icmp_seq=1 ttl=63 time=1.05 ms --- 3001::41 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 1.049/1.049/1.049/0.000 ms + ovs-appctl fdb/show br-nat port VLAN MAC Age LOCAL 0 a6:87:c9:55:41:49 10 2 12 fe:5c:0d:b6:c9:63 10 2 11 fe:5c:0d:b6:c9:63 10 2 0 b8:59:9f:ea:92:1b 8 2 14 68:05:ca:2a:3a:a2 7 2 12 a6:07:e1:b3:ab:97 6 2 3 34:73:5a:99:55:2e 3 LOCAL 0 a0:36:9f:ab:36:b6 3 2 0 34:73:5a:99:55:2e 3 2 12 68:05:ca:2a:3a:a2 3 2 14 fe:5c:0d:b6:c9:63 2 2 0 40:f0:78:11:69:ea 0 3 0 6a:06:51:58:44:15 0 1 0 00:00:09:09:00:03 0 <=== mac of router is learned on port 1 + ip netns exec server1 ping6 3001::41 -c 5 PING 3001::41(3001::41) 56 data bytes 64 bytes from 3001::41: icmp_seq=1 ttl=63 time=0.078 ms 64 bytes from 3001::41: icmp_seq=2 ttl=63 time=0.280 ms --- 3001::41 ping statistics --- 5 packets transmitted, 2 received, 60% packet loss, time 4094ms rtt min/avg/max/mdev = 0.078/0.179/0.280/0.101 ms <=== packet loss after 2 ping + ovs-appctl fdb/show br-nat port VLAN MAC Age LOCAL 0 a6:87:c9:55:41:49 15 2 12 fe:5c:0d:b6:c9:63 15 2 11 fe:5c:0d:b6:c9:63 15 2 0 b8:59:9f:ea:92:1b 13 2 14 68:05:ca:2a:3a:a2 12 2 12 a6:07:e1:b3:ab:97 11 LOCAL 0 a0:36:9f:ab:36:b6 8 2 12 68:05:ca:2a:3a:a2 8 2 14 fe:5c:0d:b6:c9:63 7 2 13 68:05:ca:2a:3a:a2 4 2 0 00:00:09:09:00:03 3 <=== mac of router is learned on port 2 2 0 40:f0:78:11:69:ea 1 2 0 08:94:ef:04:78:5a 0 3 0 6a:06:51:58:44:15 0 2 0 00:15:17:de:0c:87 0 2 0 08:94:ef:04:78:5b 0 2 0 34:73:5a:99:55:2e 0 2 3 34:73:5a:99:55:2e 0 Expected results: there is no loss for ping Additional info: it seems that the bind for mac of router on br-nat changed from port 1 to port 2. port 1 is the patch port, port 2 is another nic. the right bind should be port 1. [root@dell-per730-03 test]# ovs-vsctl show 42e94eab-1950-4816-875b-7b99beade360 Bridge br-nat Port veth0_s1_p Interface veth0_s1_p Port enp5s0f1 Interface enp5s0f1 Port patch-ln_port-to-br-int Interface patch-ln_port-to-br-int type: patch options: {peer=patch-br-int-to-ln_port} Port br-nat Interface br-nat type: internal Bridge br-int fail_mode: secure datapath_type: system Port ovn-hv0-0 Interface ovn-hv0-0 type: geneve options: {csum="true", key=flow, remote_ip="1.1.5.26"} Port veth0_s0_p Interface veth0_s0_p Port patch-br-int-to-ln_port Interface patch-br-int-to-ln_port type: patch options: {peer=patch-ln_port-to-br-int} Port br-int Interface br-int type: internal ovs_version: "2.15.4" [root@dell-per730-03 test]# rpm -qa | grep -E "openvswitch2.15|ovn-2021" ovn-2021-central-21.12.0-30.el8fdp.x86_64 openvswitch2.15-2.15.0-81.el8fdp.x86_64 ovn-2021-21.12.0-30.el8fdp.x86_64 ovn-2021-host-21.12.0-30.el8fdp.x86_64 [root@dell-per740-42 ~]# ovs-vsctl show 849c1d02-adab-46ca-a5fe-a767cee7c0ef Bridge br-nat Port br-nat Interface br-nat type: internal Port ens3f1 Interface ens3f1 Port patch-ln_port-to-br-int Interface patch-ln_port-to-br-int type: patch options: {peer=patch-br-int-to-ln_port} Bridge br-int fail_mode: secure datapath_type: system Port ovn-hv1-0 Interface ovn-hv1-0 type: geneve options: {csum="true", key=flow, remote_ip="1.1.5.25"} Port veth0_c0_p Interface veth0_c0_p Port br-int Interface br-int type: internal Port patch-br-int-to-ln_port Interface patch-br-int-to-ln_port type: patch options: {peer=patch-ln_port-to-br-int} ovs_version: "2.15.4"
the issue doesn't occur on ovn-2021-21.06.0-29. and appear from ovn-2021-21.09.0-14.
Hi, does https://bugzilla.redhat.com/show_bug.cgi?id=2062580#c1 mean that the issue is fixed now?
(In reply to Mark Michelson from comment #2) > Hi, does https://bugzilla.redhat.com/show_bug.cgi?id=2062580#c1 mean that > the issue is fixed now? no, ovn-2021-21.09.0-14 is newer than ovn-2021-21.06.0-29, which means that the issue doesn't exist on the old version, but still exist on the new version.
I am still not able to reproduce it locally however on the env I have noticed few things: The ping will catch up after few seconds and since then it looks ok. The logical flows are ok the whole time: # ovn-trace --minimal ls0 'inport == "ln_port" && eth.src == f6:26:8f:88:f7:78 && ip6.src == 3000:54::1 && eth.dst == 00:00:09:09:00:03 && ip6.dst == 3001::41 && ip.ttl == 32' # ipv6,reg14=0x2,vlan_tci=0x0000,dl_src=f6:26:8f:88:f7:78,dl_dst=00:00:09:09:00:03,ipv6_src=3000:54::1,ipv6_dst=3001::41,ipv6_label=0x00000,nw_proto=0,nw_tos=0,nw_ecn=0,nw_ttl=32 ct_dnat(ip6.dst=2001::1) /* default (use --ct to customize) */ { ip.ttl--; eth.src = 00:00:09:09:00:02; eth.dst = 00:00:00:01:01:02; ct_dnat /* assuming no un-dnat entry, so no change */ { output("ls2p1"); }; }; The physical flows are disturbed when the ping is not going though. ------- Working flow -------: # ovs-appctl ofproto/trace br-nat in_port=3,icmp6,dl_src=f6:26:8f:88:f7:78,dl_dst=00:00:09:09:00:03,ipv6_src=3000:54::1,ipv6_dst=3001::41 Flow: icmp6,in_port=3,vlan_tci=0x0000,dl_src=f6:26:8f:88:f7:78,dl_dst=00:00:09:09:00:03,ipv6_src=3000:54::1,ipv6_dst=3001::41,ipv6_label=0x00000,nw_tos=0,nw_ecn=0,nw_ttl=0,icmp_type=0,icmp_code=0 bridge("br-nat") ---------------- 0. priority 0 NORMAL -> forwarding to learned port bridge("br-int") ---------------- 0. in_port=3,vlan_tci=0x0000/0x1000, priority 100, cookie 0x3fd3b927 set_field:0x8->reg11 set_field:0x9->reg12 set_field:0x4->metadata set_field:0x2->reg14 resubmit(,8) 8. reg14=0x2,metadata=0x4, priority 50, cookie 0x4afe314c resubmit(,9) 9. metadata=0x4, priority 0, cookie 0xb617ba56 resubmit(,10) 10. metadata=0x4, priority 0, cookie 0xbab7df93 resubmit(,11) 11. metadata=0x4, priority 0, cookie 0x7ef87950 resubmit(,12) 12. metadata=0x4, priority 0, cookie 0x5c491ce7 resubmit(,13) 13. metadata=0x4, priority 0, cookie 0x7f4270a2 resubmit(,14) 14. ipv6,reg14=0x2,metadata=0x4, priority 110, cookie 0x8bf356ea resubmit(,15) 15. metadata=0x4, priority 0, cookie 0x5cc9d6f resubmit(,16) 16. metadata=0x4, priority 65535, cookie 0xba18576c resubmit(,17) 17. metadata=0x4, priority 65535, cookie 0x7b126187 resubmit(,18) 18. metadata=0x4, priority 0, cookie 0xa3179698 resubmit(,19) 19. metadata=0x4, priority 0, cookie 0xc0dbb190 resubmit(,20) 20. metadata=0x4, priority 0, cookie 0x8d569033 resubmit(,21) 21. metadata=0x4, priority 0, cookie 0x23785310 resubmit(,22) 22. metadata=0x4, priority 0, cookie 0x84b0be42 resubmit(,23) 23. metadata=0x4, priority 0, cookie 0xc1f6777 resubmit(,24) 24. metadata=0x4, priority 0, cookie 0x94ecbbd9 resubmit(,25) 25. metadata=0x4, priority 0, cookie 0xaad469ed resubmit(,26) 26. reg14=0x2,metadata=0x4, priority 100, cookie 0x1dabebda resubmit(,27) 27. metadata=0x4, priority 0, cookie 0xde823af8 resubmit(,28) 28. metadata=0x4, priority 0, cookie 0x6bdd0572 resubmit(,29) 29. metadata=0x4, priority 0, cookie 0xad47b4a4 resubmit(,30) 30. metadata=0x4, priority 0, cookie 0x7e3d8de8 resubmit(,31) 31. metadata=0x4, priority 0, cookie 0x203ddc5e resubmit(,32) 32. metadata=0x4,dl_dst=00:00:09:09:00:03, priority 50, cookie 0x9e0691c5 set_field:0x1->reg15 resubmit(,37) 37. priority 0 resubmit(,38) 38. reg15=0x1,metadata=0x4, priority 100, cookie 0xec729a34 set_field:0x8->reg11 set_field:0x9->reg12 resubmit(,39) 39. priority 0 set_field:0->reg0 set_field:0->reg1 set_field:0->reg2 set_field:0->reg3 set_field:0->reg4 set_field:0->reg5 set_field:0->reg6 set_field:0->reg7 set_field:0->reg8 set_field:0->reg9 resubmit(,40) 40. ipv6,reg15=0x1,metadata=0x4, priority 110, cookie 0x454f22c6 resubmit(,41) 41. metadata=0x4, priority 0, cookie 0xdfaccffe resubmit(,42) 42. metadata=0x4, priority 0, cookie 0x1d2b3b7d resubmit(,43) 43. metadata=0x4, priority 65535, cookie 0xa7f28712 resubmit(,44) 44. metadata=0x4, priority 65535, cookie 0x5b64a9f2 resubmit(,45) 45. metadata=0x4, priority 0, cookie 0x6ed73e66 resubmit(,46) 46. metadata=0x4, priority 0, cookie 0x1b88aa07 resubmit(,47) 47. metadata=0x4, priority 0, cookie 0x6fc13b06 resubmit(,48) 48. metadata=0x4, priority 0, cookie 0xfc31e2b4 resubmit(,49) 49. reg15=0x1,metadata=0x4, priority 50, cookie 0xfbe73cbd resubmit(,64) 64. priority 0 resubmit(,65) 65. reg15=0x1,metadata=0x4, priority 100, cookie 0xec729a34 clone(ct_clear,set_field:0->reg11,set_field:0->reg12,set_field:0->reg13,set_field:0x5->reg11,set_field:0x4->reg12,set_field:0x3->metadata,set_field:0x3->reg14,set_field:0->reg10,set_field:0->reg15,set_field:0->reg0,set_field:0->reg1,set_field:0->reg2,set_field:0->reg3,set_field:0->reg4,set_field:0->reg5,set_field:0->reg6,set_field:0->reg7,set_field:0->reg8,set_field:0->reg9,resubmit(,8)) ct_clear set_field:0->reg11 set_field:0->reg12 set_field:0->reg13 set_field:0x5->reg11 set_field:0x4->reg12 set_field:0x3->metadata set_field:0x3->reg14 set_field:0->reg10 set_field:0->reg15 set_field:0->reg0 set_field:0->reg1 set_field:0->reg2 set_field:0->reg3 set_field:0->reg4 set_field:0->reg5 set_field:0->reg6 set_field:0->reg7 set_field:0->reg8 set_field:0->reg9 resubmit(,8) 8. reg14=0x3,metadata=0x3,dl_dst=00:00:09:09:00:03, priority 50, cookie 0x2a64a866 set_field:0x90900030000000000000000/0xffffffffffff0000000000000000->xxreg0 resubmit(,9) 9. metadata=0x3, priority 0, cookie 0xf6342cab set_field:0x4/0x4->xreg4 resubmit(,10) 10. reg9=0x4/0x4,metadata=0x3, priority 100, cookie 0x380c6ee4 resubmit(,11) 11. ipv6,reg14=0x3,metadata=0x3,ipv6_src=3000:54::/64,nw_ttl=0,nw_frag=not_later, priority 100, cookie 0xc42be348 controller(userdata=00.00.00.0a.00.00.00.00.ff.ff.00.18.00.00.23.20.00.1b.00.00.00.00.04.06.00.30.00.00.00.00.00.00.ff.ff.00.18.00.00.23.20.00.1b.00.00.00.00.02.06.00.30.00.00.00.00.00.00.ff.ff.00.18.00.00.23.20.00.1c.00.00.00.00.04.06.00.30.00.00.00.00.00.00.ff.ff.00.18.00.00.23.20.00.1c.00.00.00.00.02.06.00.30.00.00.00.00.00.00.00.1c.00.18.00.80.00.00.00.00.00.00.80.00.34.10.80.00.36.10.00.00.00.00.00.19.00.18.80.00.34.10.30.00.00.54.00.00.00.00.00.00.00.00.00.00.00.0a.00.19.00.10.00.01.3a.01.fe.00.00.00.00.00.00.00.00.19.00.10.80.00.3a.01.03.00.00.00.00.00.00.00.00.19.00.10.80.00.3c.01.00.00.00.00.00.00.00.00.00.19.00.10.00.01.1e.04.00.00.00.03.00.00.00.00.00.19.00.10.00.01.15.08.00.00.00.01.00.00.00.01.ff.ff.00.10.00.00.23.20.00.0e.ff.f8.25.00.00.00) Final flow: unchanged Megaflow: recirc_id=0,ct_state=-new-trk,eth,icmp6,in_port=3,dl_src=f6:26:8f:88:f7:78,dl_dst=00:00:09:09:00:03,ipv6_src=3000:54::/64,ipv6_dst=3001::41,nw_ttl=0,nw_frag=no,nd_target=:: Datapath actions: userspace(pid=4015846741,controller(reason=1,dont_send=1,continuation=0,recirc_id=60,rule_cookie=0xc42be348,controller_id=0,max_len=65535)) ------- Disturbed flow -------: # ovs-appctl ofproto/trace br-nat in_port=3,icmp6,dl_src=52:ad:dd:51:5b:77,dl_dst=00:00:09:09:00:03,ipv6_src=3000:54::1,ipv6_dst=3001::41 Flow: icmp6,in_port=3,vlan_tci=0x0000,dl_src=52:ad:dd:51:5b:77,dl_dst=00:00:09:09:00:03,ipv6_src=3000:54::1,ipv6_dst=3001::41,ipv6_label=0x00000,nw_tos=0,nw_ecn=0,nw_ttl=0,icmp_type=0,icmp_code=0 bridge("br-nat") ---------------- 0. priority 0 NORMAL -> forwarding to learned port Final flow: unchanged Megaflow: recirc_id=0,eth,ipv6,in_port=3,dl_src=52:ad:dd:51:5b:77,dl_dst=00:00:09:09:00:03,nw_frag=no Datapath actions: 5
Patch posted: https://patchwork.ozlabs.org/project/ovn/list/?series=295147
confirmed that the issue disappered on ovn22.06-22.06.0-27.el8: [root@wsfd-advnetlab16 bz2062580]# rpm -qa | grep -E "openvswitch2.15|ovn22.06" openvswitch2.15-2.15.0-81.el8fdp.x86_64 ovn22.06-central-22.06.0-27.el8fdp.x86_64 ovn22.06-22.06.0-27.el8fdp.x86_64 ovn22.06-host-22.06.0-27.el8fdp.x86_64 + ovs-ofctl show br-nat OFPT_FEATURES_REPLY (xid=0x2): dpid:00000c42a1080b1b n_tables:254, n_buffers:0 capabilities: FLOW_STATS TABLE_STATS PORT_STATS QUEUE_STATS ARP_MATCH_IP actions: output enqueue set_vlan_vid set_vlan_pcp strip_vlan mod_dl_src mod_dl_dst mod_nw_src mod_nw_dst mod_nw_tos mod_tp_src mod_tp_dst 1(patch-ln_port-t): addr:be:a0:d5:c7:9e:52 config: 0 state: 0 speed: 0 Mbps now, 0 Mbps max 2(ens1f1): addr:0c:42:a1:08:0b:1b config: 0 state: 0 current: AUTO_NEG advertised: 1GB-FD 10GB-FD AUTO_NEG AUTO_PAUSE supported: 1GB-FD 10GB-FD AUTO_NEG AUTO_PAUSE speed: 0 Mbps now, 10000 Mbps max 3(veth0_s1_p): addr:3a:28:7e:5d:65:20 config: 0 state: 0 current: 10GB-FD COPPER speed: 10000 Mbps now, 0 Mbps max LOCAL(br-nat): addr:0c:42:a1:08:0b:1b config: 0 state: 0 speed: 0 Mbps now, 0 Mbps max OFPT_GET_CONFIG_REPLY (xid=0x4): frags=normal miss_send_len=0 + ovs-appctl fdb/show br-nat port VLAN MAC Age LOCAL 0 8e:cf:14:4b:be:47 10 2 0 0c:42:a1:08:0a:d3 5 LOCAL 0 0c:42:a1:08:0b:1b 4 1 0 00:00:09:09:00:03 0 3 0 e6:25:09:82:5e:60 0 + ovn-nbctl --if-exists lr-nat-del lr1 dnat_and_snat 3001::1 + ovn-nbctl --may-exist lr-nat-add lr1 dnat 3001::41 2001::1 + ovn-nbctl --may-exist lr-nat-add lr1 dnat 3001::41 2001::1 + ip netns exec server1 ping6 3001::41 -c 1 PING 3001::41(3001::41) 56 data bytes 64 bytes from 3001::41: icmp_seq=1 ttl=63 time=1.54 ms --- 3001::41 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 1.542/1.542/1.542/0.000 ms + ovs-appctl fdb/show br-nat port VLAN MAC Age LOCAL 0 8e:cf:14:4b:be:47 10 2 0 0c:42:a1:08:0a:d3 5 LOCAL 0 0c:42:a1:08:0b:1b 4 1 0 00:00:09:09:00:03 0 3 0 e6:25:09:82:5e:60 0 + ip netns exec server1 ping6 3001::41 -c 5 PING 3001::41(3001::41) 56 data bytes 64 bytes from 3001::41: icmp_seq=1 ttl=63 time=0.140 ms 64 bytes from 3001::41: icmp_seq=2 ttl=63 time=0.487 ms 64 bytes from 3001::41: icmp_seq=3 ttl=63 time=0.085 ms 64 bytes from 3001::41: icmp_seq=4 ttl=63 time=0.079 ms 64 bytes from 3001::41: icmp_seq=5 ttl=63 time=0.080 ms --- 3001::41 ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 4089ms rtt min/avg/max/mdev = 0.079/0.174/0.487/0.158 ms + ovs-appctl fdb/show br-nat port VLAN MAC Age LOCAL 0 8e:cf:14:4b:be:47 14 LOCAL 0 0c:42:a1:08:0b:1b 8 1 0 00:00:09:09:00:03 0 3 0 e6:25:09:82:5e:60 0 2 0 0c:42:a1:08:0a:d3 0
ovn22.03 fast-datapath-rhel-8 clone created at https://bugzilla.redhat.com/show_bug.cgi?id=2160737 ovn22.03 fast-datapath-rhel-9 clone created at https://bugzilla.redhat.com/show_bug.cgi?id=2160738