Launch an instance on a self-service network

To launch an instance on a self-service network, follow the same steps as launching an instance on the provider network, but using the UUID of the self-service network.

OVN operations

The OVN mechanism driver and OVN perform the following operations when launching an instance.

  1. The OVN mechanism driver creates a logical port for the instance.

    _uuid               : c754d1d2-a7fb-4dd0-b14c-c076962b06b9
    addresses           : ["fa:16:3e:15:7d:13 192.168.1.5"]
    enabled             : true
    external_ids        : {"neutron:port_name"=""}
    name                : "eaf36f62-5629-4ec4-b8b9-5e562c40e7ae"
    options             : {}
    parent_name         : []
    port_security       : ["fa:16:3e:15:7d:13 192.168.1.5"]
    tag                 : []
    type                : ""
    up                  : true
    
  2. The OVN mechanism driver updates the appropriate Address Set object(s) with the address of the new instance:

    _uuid               : d0becdea-e1ed-48c4-9afc-e278cdef4629
    addresses           : ["192.168.1.5", "203.0.113.103"]
    external_ids        : {"neutron:security_group_name"=default}
    name                : "as_ip4_90a78a43_b549_4bee_8822_21fcccab58dc"
    
  3. The OVN mechanism driver creates ACL entries for this port and any other ports in the project.

    _uuid               : 00ecbe8f-c82a-4e18-b688-af2a1941cff7
    action              : allow
    direction           : from-lport
    external_ids        : {"neutron:lport"="eaf36f62-5629-4ec4-b8b9-5e562c40e7ae"}
    log                 : false
    match               : "inport == \"eaf36f62-5629-4ec4-b8b9-5e562c40e7ae\" && ip4 && (ip4.dst == 255.255.255.255 || ip4.dst == 192.168.1.0/24) && udp && udp.src == 68 && udp.dst == 67"
    priority            : 1002
    
    _uuid               : 2bf5b7ed-008e-4676-bba5-71fe58897886
    action              : allow-related
    direction           : from-lport
    external_ids        : {"neutron:lport"="eaf36f62-5629-4ec4-b8b9-5e562c40e7ae"}
    log                 : false
    match               : "inport == \"eaf36f62-5629-4ec4-b8b9-5e562c40e7ae\" && ip4"
    priority            : 1002
    
    _uuid               : 330b4e27-074f-446a-849b-9ab0018b65c5
    action              : allow
    direction           : to-lport
    external_ids        : {"neutron:lport"="eaf36f62-5629-4ec4-b8b9-5e562c40e7ae"}
    log                 : false
    match               : "outport == \"eaf36f62-5629-4ec4-b8b9-5e562c40e7ae\" && ip4 && ip4.src == 192.168.1.0/24 && udp && udp.src == 67 && udp.dst == 68"
    priority            : 1002
    
    _uuid               : 683f52f2-4be6-4bd7-a195-6c782daa7840
    action              : allow-related
    direction           : from-lport
    external_ids        : {"neutron:lport"="eaf36f62-5629-4ec4-b8b9-5e562c40e7ae"}
    log                 : false
    match               : "inport == \"eaf36f62-5629-4ec4-b8b9-5e562c40e7ae\" && ip6"
    priority            : 1002
    
    _uuid               : 8160f0b4-b344-43d5-bbd4-ca63a71aa4fc
    action              : drop
    direction           : to-lport
    external_ids        : {"neutron:lport"="eaf36f62-5629-4ec4-b8b9-5e562c40e7ae"}
    log                 : false
    match               : "outport == \"eaf36f62-5629-4ec4-b8b9-5e562c40e7ae\" && ip"
    priority            : 1001
    
    _uuid               : 97c6b8ca-14ea-4812-8571-95d640a88f4f
    action              : allow-related
    direction           : to-lport
    external_ids        : {"neutron:lport"="eaf36f62-5629-4ec4-b8b9-5e562c40e7ae"}
    log                 : false
    match               : "outport == \"eaf36f62-5629-4ec4-b8b9-5e562c40e7ae\" && ip6"
    priority            : 1002
    
    _uuid               : 9cfd8eb5-5daa-422e-8fe8-bd22fd7fa826
    action              : allow-related
    direction           : to-lport
    external_ids        : {"neutron:lport"="eaf36f62-5629-4ec4-b8b9-5e562c40e7ae"}
    log                 : false
    match               : "outport == \"eaf36f62-5629-4ec4-b8b9-5e562c40e7ae\" && ip4 && ip4.src == 0.0.0.0/0 && icmp4"
    priority            : 1002
    
    _uuid               : f72c2431-7a64-4cea-b84a-118bdc761be2
    action              : drop
    direction           : from-lport
    external_ids        : {"neutron:lport"="eaf36f62-5629-4ec4-b8b9-5e562c40e7ae"}
    log                 : false
    match               : "inport == \"eaf36f62-5629-4ec4-b8b9-5e562c40e7ae\" && ip"
    priority            : 1001
    
    _uuid               : f94133fa-ed27-4d5e-a806-0d528e539cb3
    action              : allow-related
    direction           : to-lport
    external_ids        : {"neutron:lport"="eaf36f62-5629-4ec4-b8b9-5e562c40e7ae"}
    log                 : false
    match               : "outport == \"eaf36f62-5629-4ec4-b8b9-5e562c40e7ae\" && ip4 && ip4.src == $as_ip4_90a78a43_b549_4bee_8822_21fcccab58dc"
    priority            : 1002
    
    _uuid               : 7f7a92ff-b7e9-49b0-8be0-0dc388035df3
    action              : allow-related
    direction           : to-lport
    external_ids        : {"neutron:lport"="eaf36f62-5629-4ec4-b8b9-5e562c40e7ae"}
    log                 : false
    match               : "outport == \"eaf36f62-5629-4ec4-b8b9-5e562c40e7ae\" && ip6 && ip6.src == $as_ip4_90a78a43_b549_4bee_8822_21fcccab58dc"
    priority            : 1002
    
  4. The OVN mechanism driver updates the logical switch information with the UUIDs of these objects.

    _uuid               : 15e2c80b-1461-4003-9869-80416cd97de5
    acls                : [00ecbe8f-c82a-4e18-b688-af2a1941cff7,
                           2bf5b7ed-008e-4676-bba5-71fe58897886,
                           330b4e27-074f-446a-849b-9ab0018b65c5,
                           683f52f2-4be6-4bd7-a195-6c782daa7840,
                           7f7a92ff-b7e9-49b0-8be0-0dc388035df3,
                           8160f0b4-b344-43d5-bbd4-ca63a71aa4fc,
                           97c6b8ca-14ea-4812-8571-95d640a88f4f,
                           9cfd8eb5-5daa-422e-8fe8-bd22fd7fa826,
                           f72c2431-7a64-4cea-b84a-118bdc761be2,
                           f94133fa-ed27-4d5e-a806-0d528e539cb3]
    external_ids        : {"neutron:network_name"="selfservice"}
    name                : "neutron-6cc81cae-8c5f-4c09-aaf2-35d0aa95c084"
    ports               : [2df457a5-f71c-4a2f-b9ab-d9e488653872,
                           67c2737c-b380-492b-883b-438048b48e56,
                           c754d1d2-a7fb-4dd0-b14c-c076962b06b9]
    
  5. With address sets, it is no longer necessary for the OVN mechanism driver to create separate ACLs for other instances in the project. That is handled automagically via address sets.

  6. The OVN northbound service translates the updated Address Set object(s) into updated Address Set objects in the OVN southbound database:

    _uuid               : 2addbee3-7084-4fff-8f7b-15b1efebdaff
    addresses           : ["192.168.1.5", "203.0.113.103"]
    name                : "as_ip4_90a78a43_b549_4bee_8822_21fcccab58dc"
    
  7. The OVN northbound service adds a Port Binding for the new Logical Switch Port object:

    _uuid               : 7a558e7b-ed7a-424f-a0cf-ab67d2d832d7
    chassis             : b67d6da9-0222-4ab1-a852-ab2607610bf8
    datapath            : 3f6e16b5-a03a-48e5-9b60-7b7a0396c425
    logical_port        : "e9cb7857-4cb1-4e91-aae5-165a7ab5b387"
    mac                 : ["fa:16:3e:b6:91:70 192.168.1.5"]
    options             : {}
    parent_port         : []
    tag                 : []
    tunnel_key          : 3
    type                : ""
    
  8. The OVN northbound service updates the flooding multicast group for the logical datapath with the new port binding:

    _uuid               : c08d0102-c414-4a47-98d9-dd3fa9f9901c
    datapath            : 0b214af6-8910-489c-926a-fd0ed16a8251
    name                : _MC_flood
    ports               : [3e463ca0-951c-46fd-b6cf-05392fa3aa1f,
                           794a6f03-7941-41ed-b1c6-0e00c1e18da0,
                           fa7b294d-2a62-45ae-8de3-a41c002de6de]
    tunnel_key          : 65535
    
  9. The OVN northbound service adds Logical Flows based on the updated Address Set, ACL and Logical_Switch_Port objects:

    Datapath: 3f6e16b5-a03a-48e5-9b60-7b7a0396c425  Pipeline: ingress
      table= 0(  ls_in_port_sec_l2), priority=   50,
        match=(inport == "e9cb7857-4cb1-4e91-aae5-165a7ab5b387" &&
          eth.src == {fa:16:3e:b6:a3:54}),
        action=(next;)
      table= 1(  ls_in_port_sec_ip), priority=   90,
        match=(inport == "e9cb7857-4cb1-4e91-aae5-165a7ab5b387" &&
          eth.src == fa:16:3e:b6:a3:54 && ip4.src == 0.0.0.0 &&
          ip4.dst == 255.255.255.255 && udp.src == 68 && udp.dst == 67),
        action=(next;)
      table= 1(  ls_in_port_sec_ip), priority=   90,
        match=(inport == "e9cb7857-4cb1-4e91-aae5-165a7ab5b387" &&
          eth.src == fa:16:3e:b6:a3:54 && ip4.src == {192.168.1.5}),
        action=(next;)
      table= 1(  ls_in_port_sec_ip), priority=   80,
        match=(inport == "e9cb7857-4cb1-4e91-aae5-165a7ab5b387" &&
          eth.src == fa:16:3e:b6:a3:54 && ip),
        action=(drop;)
      table= 2(  ls_in_port_sec_nd), priority=   90,
        match=(inport == "e9cb7857-4cb1-4e91-aae5-165a7ab5b387" &&
          eth.src == fa:16:3e:b6:a3:54 && arp.sha == fa:16:3e:b6:a3:54 &&
          (arp.spa == 192.168.1.5 )),
        action=(next;)
      table= 2(  ls_in_port_sec_nd), priority=   80,
        match=(inport == "e9cb7857-4cb1-4e91-aae5-165a7ab5b387" &&
          (arp || nd)),
        action=(drop;)
      table= 3(      ls_in_pre_acl), priority=  110, match=(nd),
        action=(next;)
      table= 3(      ls_in_pre_acl), priority=  100, match=(ip),
        action=(reg0[0] = 1; next;)
      table= 6(          ls_in_acl), priority=65535,
        match=(!ct.est && ct.rel && !ct.new && !ct.inv),
        action=(next;)
      table= 6(          ls_in_acl), priority=65535,
        match=(ct.est && !ct.rel && !ct.new && !ct.inv),
        action=(next;)
      table= 6(          ls_in_acl), priority=65535, match=(ct.inv),
        action=(drop;)
      table= 6(          ls_in_acl), priority=65535, match=(nd),
        action=(next;)
      table= 6(          ls_in_acl), priority= 2002,
        match=(ct.new && (inport == "e9cb7857-4cb1-4e91-aae5-165a7ab5b387" &&
          ip6)),
        action=(reg0[1] = 1; next;)
      table= 6(          ls_in_acl), priority= 2002,
        match=(inport == "e9cb7857-4cb1-4e91-aae5-165a7ab5b387" && ip4 &&
          (ip4.dst == 255.255.255.255 || ip4.dst == 192.168.1.0/24) &&
          udp && udp.src == 68 && udp.dst == 67),
        action=(reg0[1] = 1; next;)
      table= 6(          ls_in_acl), priority= 2002,
        match=(ct.new && (inport == "e9cb7857-4cb1-4e91-aae5-165a7ab5b387" &&
          ip4)),
        action=(reg0[1] = 1; next;)
      table= 6(          ls_in_acl), priority= 2001,
        match=(inport == "e9cb7857-4cb1-4e91-aae5-165a7ab5b387" && ip),
        action=(drop;)
      table= 6(          ls_in_acl), priority=    1, match=(ip),
        action=(reg0[1] = 1; next;)
      table= 9(   ls_in_arp_nd_rsp), priority=   50,
        match=(arp.tpa == 192.168.1.5 && arp.op == 1),
        action=(eth.dst = eth.src; eth.src = fa:16:3e:b6:a3:54; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha = fa:16:3e:b6:a3:54; arp.tpa = arp.spa; arp.spa = 192.168.1.5; outport = inport; inport = ""; /* Allow sending out inport. */ output;)
      table=10(      ls_in_l2_lkup), priority=   50,
        match=(eth.dst == fa:16:3e:b6:a3:54),
        action=(outport = "e9cb7857-4cb1-4e91-aae5-165a7ab5b387"; output;)
    Datapath: 3f6e16b5-a03a-48e5-9b60-7b7a0396c425  Pipeline: egress
      table= 1(     ls_out_pre_acl), priority=  110, match=(nd),
        action=(next;)
      table= 1(     ls_out_pre_acl), priority=  100, match=(ip),
        action=(reg0[0] = 1; next;)
      table= 4(         ls_out_acl), priority=65535, match=(nd),
        action=(next;)
      table= 4(         ls_out_acl), priority=65535,
        match=(!ct.est && ct.rel && !ct.new && !ct.inv),
        action=(next;)
      table= 4(         ls_out_acl), priority=65535,
        match=(ct.est && !ct.rel && !ct.new && !ct.inv),
        action=(next;)
      table= 4(         ls_out_acl), priority=65535, match=(ct.inv),
        action=(drop;)
      table= 4(         ls_out_acl), priority= 2002,
        match=(ct.new &&
          (outport == "e9cb7857-4cb1-4e91-aae5-165a7ab5b387" && ip6 &&
          ip6.src == $as_ip6_90a78a43_b549_4bee_8822_21fcccab58dc)),
        action=(reg0[1] = 1; next;)
      table= 4(         ls_out_acl), priority= 2002,
        match=(ct.new &&
          (outport == "e9cb7857-4cb1-4e91-aae5-165a7ab5b387" && ip4 &&
          ip4.src == $as_ip4_90a78a43_b549_4bee_8822_21fcccab58dc)),
        action=(reg0[1] = 1; next;)
      table= 4(         ls_out_acl), priority= 2002,
        match=(outport == "e9cb7857-4cb1-4e91-aae5-165a7ab5b387" && ip4 &&
          ip4.src == 192.168.1.0/24 && udp && udp.src == 67 && udp.dst == 68),
        action=(reg0[1] = 1; next;)
      table= 4(         ls_out_acl), priority= 2001,
        match=(outport == "e9cb7857-4cb1-4e91-aae5-165a7ab5b387" && ip),
        action=(drop;)
      table= 4(         ls_out_acl), priority=    1, match=(ip),
        action=(reg0[1] = 1; next;)
      table= 6( ls_out_port_sec_ip), priority=   90,
        match=(outport == "e9cb7857-4cb1-4e91-aae5-165a7ab5b387" &&
          eth.dst == fa:16:3e:b6:a3:54 &&
          ip4.dst == {255.255.255.255, 224.0.0.0/4, 192.168.1.5}),
        action=(next;)
      table= 6( ls_out_port_sec_ip), priority=   80,
        match=(outport == "e9cb7857-4cb1-4e91-aae5-165a7ab5b387" &&
          eth.dst == fa:16:3e:b6:a3:54 && ip),
        action=(drop;)
      table= 7( ls_out_port_sec_l2), priority=   50,
        match=(outport == "e9cb7857-4cb1-4e91-aae5-165a7ab5b387" &&
          eth.dst == {fa:16:3e:b6:a3:54}),
        action=(output;)
    
  10. The OVN controller service on each compute node translates these objects into flows on the integration bridge br-int. Exact flows depend on whether the compute node containing the instance also contains a DHCP agent on the subnet.

    • On the compute node containing the instance, the Compute service creates a port that connects the instance to the integration bridge and OVN creates the following flows:

      # ovs-ofctl show br-int
      OFPT_FEATURES_REPLY (xid=0x2): dpid:000022024a1dc045
      n_tables:254, n_buffers:256
      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
       12(tapeaf36f62-56): addr:fe:16:3e:15:7d:13
           config:     0
           state:      0
           current:    10MB-FD COPPER
      
      cookie=0x0, duration=179.460s, table=0, n_packets=122, n_bytes=10556,
          idle_age=1, priority=100,in_port=12
          actions=load:0x4->NXM_NX_REG5[],load:0x5->OXM_OF_METADATA[],
              load:0x3->NXM_NX_REG6[],resubmit(,16)
      cookie=0x0, duration=187.408s, table=16, n_packets=122, n_bytes=10556,
          idle_age=1, priority=50,reg6=0x3,metadata=0x5,
              dl_src=fa:16:3e:15:7d:13
          actions=resubmit(,17)
      cookie=0x0, duration=187.408s, table=17, n_packets=2, n_bytes=684,
          idle_age=84, priority=90,udp,reg6=0x3,metadata=0x5,
              dl_src=fa:16:3e:15:7d:13,nw_src=0.0.0.0,nw_dst=255.255.255.255,
              tp_src=68,tp_dst=67
          actions=resubmit(,18)
      cookie=0x0, duration=187.408s, table=17, n_packets=98, n_bytes=8276,
          idle_age=1, priority=90,ip,reg6=0x3,metadata=0x5,
              dl_src=fa:16:3e:15:7d:13,nw_src=192.168.1.5
          actions=resubmit(,18)
      cookie=0x0, duration=187.408s, table=17, n_packets=17, n_bytes=1386,
          idle_age=55, priority=80,ipv6,reg6=0x3,metadata=0x5,
              dl_src=fa:16:3e:15:7d:13
          actions=drop
      cookie=0x0, duration=187.408s, table=17, n_packets=0, n_bytes=0,
          idle_age=187, priority=80,ip,reg6=0x3,metadata=0x5,
              dl_src=fa:16:3e:15:7d:13
          actions=drop
      cookie=0x0, duration=187.408s, table=18, n_packets=5, n_bytes=210,
          idle_age=10, priority=90,arp,reg6=0x3,metadata=0x5,
              dl_src=fa:16:3e:15:7d:13,arp_spa=192.168.1.5,
          arp_sha=fa:16:3e:15:7d:13
          actions=resubmit(,19)
      cookie=0x0, duration=187.408s, table=18, n_packets=0, n_bytes=0,
          idle_age=187, priority=80,icmp6,reg6=0x3,metadata=0x5,
              icmp_type=135,icmp_code=0
          actions=drop
      cookie=0x0, duration=187.408s, table=18, n_packets=0, n_bytes=0,
          idle_age=187, priority=80,icmp6,reg6=0x3,metadata=0x5,
              icmp_type=136,icmp_code=0
          actions=drop
      cookie=0x0, duration=187.408s, table=18, n_packets=0, n_bytes=0,
          idle_age=187, priority=80,arp,reg6=0x3,metadata=0x5
          actions=drop
      cookie=0x0, duration=47.068s, table=19, n_packets=0, n_bytes=0,
          idle_age=47, priority=110,icmp6,metadata=0x5,icmp_type=135,
              icmp_code=0
          actions=resubmit(,20)
      cookie=0x0, duration=47.068s, table=19, n_packets=0, n_bytes=0,
          idle_age=47, priority=110,icmp6,metadata=0x5,icmp_type=136,
              icmp_code=0
          actions=resubmit(,20)
      cookie=0x0, duration=47.068s, table=19, n_packets=33, n_bytes=4081,
          idle_age=0, priority=100,ip,metadata=0x5
          actions=load:0x1->NXM_NX_REG0[0],resubmit(,20)
      cookie=0x0, duration=47.068s, table=19, n_packets=0, n_bytes=0,
          idle_age=47, priority=100,ipv6,metadata=0x5
          actions=load:0x1->NXM_NX_REG0[0],resubmit(,20)
      cookie=0x0, duration=47.068s, table=22, n_packets=15, n_bytes=1392,
          idle_age=0, priority=65535,ct_state=-new+est-rel-inv+trk,
              metadata=0x5
          actions=resubmit(,23)
      cookie=0x0, duration=47.068s, table=22, n_packets=0, n_bytes=0,
          idle_age=47, priority=65535,ct_state=-new-est+rel-inv+trk,
              metadata=0x5
          actions=resubmit(,23)
      cookie=0x0, duration=47.068s, table=22, n_packets=0, n_bytes=0,
          idle_age=47, priority=65535,icmp6,metadata=0x5,icmp_type=135,
              icmp_code=0
          actions=resubmit(,23)
      cookie=0x0, duration=47.068s, table=22, n_packets=0, n_bytes=0,
          idle_age=47, priority=65535,icmp6,metadata=0x5,icmp_type=136,
              icmp_code=0
          actions=resubmit(,23)
      cookie=0x0, duration=47.068s, table=22, n_packets=0, n_bytes=0,
          idle_age=47, priority=65535,ct_state=+inv+trk,metadata=0x5
          actions=drop
      cookie=0x0, duration=47.068s, table=22, n_packets=0, n_bytes=0,
          idle_age=47, priority=2002,ct_state=+new+trk,ipv6,reg6=0x3,
              metadata=0x5
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,23)
      cookie=0x0, duration=47.068s, table=22, n_packets=16, n_bytes=1922,
          idle_age=2, priority=2002,ct_state=+new+trk,ip,reg6=0x3,
              metadata=0x5
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,23)
      cookie=0x0, duration=47.068s, table=22, n_packets=0, n_bytes=0,
          idle_age=47, priority=2002,udp,reg6=0x3,metadata=0x5,
              nw_dst=255.255.255.255,tp_src=68,tp_dst=67
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,23)
      cookie=0x0, duration=47.068s, table=22, n_packets=0, n_bytes=0,
          idle_age=47, priority=2002,udp,reg6=0x3,metadata=0x5,
              nw_dst=192.168.1.0/24,tp_src=68,tp_dst=67
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,23)
      cookie=0x0, duration=47.069s, table=22, n_packets=0, n_bytes=0,
          idle_age=47, priority=2001,ipv6,reg6=0x3,metadata=0x5
          actions=drop
      cookie=0x0, duration=47.068s, table=22, n_packets=0, n_bytes=0,
          idle_age=47, priority=2001,ip,reg6=0x3,metadata=0x5
          actions=drop
      cookie=0x0, duration=47.068s, table=22, n_packets=2, n_bytes=767,
          idle_age=27, priority=1,ip,metadata=0x5
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,23)
      cookie=0x0, duration=47.068s, table=22, n_packets=0, n_bytes=0,
          idle_age=47, priority=1,ipv6,metadata=0x5
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,23)
      cookie=0x0, duration=179.457s, table=25, n_packets=2, n_bytes=84,
          idle_age=33, priority=50,arp,metadata=0x5,arp_tpa=192.168.1.5,
              arp_op=1
          actions=move:NXM_OF_ETH_SRC[]->NXM_OF_ETH_DST[],
              mod_dl_src:fa:16:3e:15:7d:13,load:0x2->NXM_OF_ARP_OP[],
              move:NXM_NX_ARP_SHA[]->NXM_NX_ARP_THA[],
              load:0xfa163e157d13->NXM_NX_ARP_SHA[],
              move:NXM_OF_ARP_SPA[]->NXM_OF_ARP_TPA[],
              load:0xc0a80105->NXM_OF_ARP_SPA[],
              move:NXM_NX_REG6[]->NXM_NX_REG7[],
              load:0->NXM_NX_REG6[],load:0->NXM_OF_IN_PORT[],resubmit(,32)
      cookie=0x0, duration=187.408s, table=26, n_packets=50, n_bytes=4806,
          idle_age=1, priority=50,metadata=0x5,dl_dst=fa:16:3e:15:7d:13
          actions=load:0x3->NXM_NX_REG7[],resubmit(,32)
      cookie=0x0, duration=469.575s, table=33, n_packets=74, n_bytes=7040,
          idle_age=305, priority=100,reg7=0x4,metadata=0x4
          actions=load:0x1->NXM_NX_REG7[],resubmit(,33)
      cookie=0x0, duration=179.460s, table=34, n_packets=2, n_bytes=684,
          idle_age=84, priority=100,reg6=0x3,reg7=0x3,metadata=0x5
          actions=drop
      cookie=0x0, duration=47.069s, table=49, n_packets=0, n_bytes=0,
          idle_age=47, priority=110,icmp6,metadata=0x5,icmp_type=135,
              icmp_code=0
          actions=resubmit(,50)
      cookie=0x0, duration=47.068s, table=49, n_packets=0, n_bytes=0,
          idle_age=47, priority=110,icmp6,metadata=0x5,icmp_type=136,
              icmp_code=0
          actions=resubmit(,50)
      cookie=0x0, duration=47.068s, table=49, n_packets=34, n_bytes=4455,
          idle_age=0, priority=100,ip,metadata=0x5
          actions=load:0x1->NXM_NX_REG0[0],resubmit(,50)
      cookie=0x0, duration=47.068s, table=49, n_packets=0, n_bytes=0,
          idle_age=47, priority=100,ipv6,metadata=0x5
          actions=load:0x1->NXM_NX_REG0[0],resubmit(,50)
      cookie=0x0, duration=47.069s, table=52, n_packets=0, n_bytes=0,
          idle_age=47, priority=65535,ct_state=+inv+trk,metadata=0x5
          actions=drop
      cookie=0x0, duration=47.069s, table=52, n_packets=0, n_bytes=0,
          idle_age=47, priority=65535,icmp6,metadata=0x5,icmp_type=136,
              icmp_code=0
          actions=resubmit(,53)
      cookie=0x0, duration=47.068s, table=52, n_packets=0, n_bytes=0,
          idle_age=47, priority=65535,icmp6,metadata=0x5,icmp_type=135,
              icmp_code=0
          actions=resubmit(,53)
      cookie=0x0, duration=47.068s, table=52, n_packets=22, n_bytes=2000,
          idle_age=0, priority=65535,ct_state=-new+est-rel-inv+trk,
              metadata=0x5
          actions=resubmit(,53)
      cookie=0x0, duration=47.068s, table=52, n_packets=0, n_bytes=0,
          idle_age=47, priority=65535,ct_state=-new-est+rel-inv+trk,
              metadata=0x5
          actions=resubmit(,53)
      cookie=0x0, duration=47.068s, table=52, n_packets=0, n_bytes=0,
          idle_age=47, priority=2002,ct_state=+new+trk,ip,reg7=0x3,
              metadata=0x5,nw_src=192.168.1.5
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,53)
      cookie=0x0, duration=47.068s, table=52, n_packets=0, n_bytes=0,
          idle_age=47, priority=2002,ct_state=+new+trk,ip,reg7=0x3,
              metadata=0x5,nw_src=203.0.113.103
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,53)
      cookie=0x0, duration=47.068s, table=52, n_packets=3, n_bytes=1141,
          idle_age=27, priority=2002,udp,reg7=0x3,metadata=0x5,
              nw_src=192.168.1.0/24,tp_src=67,tp_dst=68
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,53)
      cookie=0x0, duration=39.497s, table=52, n_packets=0, n_bytes=0,
          idle_age=39, priority=2002,ct_state=+new+trk,ipv6,reg7=0x3,
              metadata=0x5
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,53)
      cookie=0x0, duration=47.068s, table=52, n_packets=0, n_bytes=0,
          idle_age=47, priority=2001,ip,reg7=0x3,metadata=0x5
          actions=drop
      cookie=0x0, duration=47.068s, table=52, n_packets=0, n_bytes=0,
          idle_age=47, priority=2001,ipv6,reg7=0x3,metadata=0x5
          actions=drop
      cookie=0x0, duration=47.068s, table=52, n_packets=9, n_bytes=1314,
          idle_age=2, priority=1,ip,metadata=0x5
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,53)
      cookie=0x0, duration=47.068s, table=52, n_packets=0, n_bytes=0,
          idle_age=47, priority=1,ipv6,metadata=0x5
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,53)
      cookie=0x0, duration=47.068s, table=54, n_packets=23, n_bytes=2945,
          idle_age=0, priority=90,ip,reg7=0x3,metadata=0x5,
              dl_dst=fa:16:3e:15:7d:13,nw_dst=192.168.1.11
          actions=resubmit(,55)
      cookie=0x0, duration=47.068s, table=54, n_packets=0, n_bytes=0,
          idle_age=47, priority=90,ip,reg7=0x3,metadata=0x5,
              dl_dst=fa:16:3e:15:7d:13,nw_dst=255.255.255.255
          actions=resubmit(,55)
      cookie=0x0, duration=47.068s, table=54, n_packets=0, n_bytes=0,
          idle_age=47, priority=90,ip,reg7=0x3,metadata=0x5,
              dl_dst=fa:16:3e:15:7d:13,nw_dst=224.0.0.0/4
          actions=resubmit(,55)
      cookie=0x0, duration=47.068s, table=54, n_packets=0, n_bytes=0,
          idle_age=47, priority=80,ip,reg7=0x3,metadata=0x5,
              dl_dst=fa:16:3e:15:7d:13
          actions=drop
      cookie=0x0, duration=47.068s, table=54, n_packets=0, n_bytes=0,
          idle_age=47, priority=80,ipv6,reg7=0x3,metadata=0x5,
              dl_dst=fa:16:3e:15:7d:13
          actions=drop
      cookie=0x0, duration=47.068s, table=55, n_packets=25, n_bytes=3029,
          idle_age=0, priority=50,reg7=0x3,metadata=0x7,
              dl_dst=fa:16:3e:15:7d:13
          actions=resubmit(,64)
      cookie=0x0, duration=179.460s, table=64, n_packets=116, n_bytes=10623,
          idle_age=1, priority=100,reg7=0x3,metadata=0x5
          actions=output:12
      
    • For each compute node that only contains a DHCP agent on the subnet, OVN creates the following flows:

      cookie=0x0, duration=192.587s, table=16, n_packets=0, n_bytes=0,
          idle_age=192, priority=50,reg6=0x3,metadata=0x5,
              dl_src=fa:16:3e:15:7d:13
          actions=resubmit(,17)
      cookie=0x0, duration=192.587s, table=17, n_packets=0, n_bytes=0,
          idle_age=192, priority=90,ip,reg6=0x3,metadata=0x5,
              dl_src=fa:16:3e:15:7d:13,nw_src=192.168.1.5
          actions=resubmit(,18)
      cookie=0x0, duration=192.587s, table=17, n_packets=0, n_bytes=0,
          idle_age=192, priority=90,udp,reg6=0x3,metadata=0x5,
              dl_src=fa:16:3e:15:7d:13,nw_src=0.0.0.0,
              nw_dst=255.255.255.255,tp_src=68,tp_dst=67
          actions=resubmit(,18)
      cookie=0x0, duration=192.587s, table=17, n_packets=0, n_bytes=0,
          idle_age=192, priority=80,ipv6,reg6=0x3,metadata=0x5,
              dl_src=fa:16:3e:15:7d:13
          actions=drop
      cookie=0x0, duration=192.587s, table=17, n_packets=0, n_bytes=0,
          idle_age=192, priority=80,ip,reg6=0x3,metadata=0x5,
              dl_src=fa:16:3e:15:7d:13
          actions=drop
      cookie=0x0, duration=192.587s, table=18, n_packets=0, n_bytes=0,
          idle_age=192, priority=90,arp,reg6=0x3,metadata=0x5,
              dl_src=fa:16:3e:15:7d:13,arp_spa=192.168.1.5,
              arp_sha=fa:16:3e:15:7d:13
          actions=resubmit(,19)
      cookie=0x0, duration=192.587s, table=18, n_packets=0, n_bytes=0,
          idle_age=192, priority=80,arp,reg6=0x3,metadata=0x5
          actions=drop
      cookie=0x0, duration=192.587s, table=18, n_packets=0, n_bytes=0,
          idle_age=192, priority=80,icmp6,reg6=0x3,metadata=0x5,
              icmp_type=135,icmp_code=0
          actions=drop
      cookie=0x0, duration=192.587s, table=18, n_packets=0, n_bytes=0,
          idle_age=192, priority=80,icmp6,reg6=0x3,metadata=0x5,
              icmp_type=136,icmp_code=0
          actions=drop
      cookie=0x0, duration=47.068s, table=19, n_packets=0, n_bytes=0,
          idle_age=47, priority=110,icmp6,metadata=0x5,icmp_type=135,
              icmp_code=0
          actions=resubmit(,20)
      cookie=0x0, duration=47.068s, table=19, n_packets=0, n_bytes=0,
          idle_age=47, priority=110,icmp6,metadata=0x5,icmp_type=136,
              icmp_code=0
          actions=resubmit(,20)
      cookie=0x0, duration=47.068s, table=19, n_packets=33, n_bytes=4081,
          idle_age=0, priority=100,ip,metadata=0x5
          actions=load:0x1->NXM_NX_REG0[0],resubmit(,20)
      cookie=0x0, duration=47.068s, table=19, n_packets=0, n_bytes=0,
          idle_age=47, priority=100,ipv6,metadata=0x5
          actions=load:0x1->NXM_NX_REG0[0],resubmit(,20)
      cookie=0x0, duration=47.068s, table=22, n_packets=15, n_bytes=1392,
          idle_age=0, priority=65535,ct_state=-new+est-rel-inv+trk,
              metadata=0x5
          actions=resubmit(,23)
      cookie=0x0, duration=47.068s, table=22, n_packets=0, n_bytes=0,
          idle_age=47, priority=65535,ct_state=-new-est+rel-inv+trk,
              metadata=0x5
          actions=resubmit(,23)
      cookie=0x0, duration=47.068s, table=22, n_packets=0, n_bytes=0,
          idle_age=47, priority=65535,icmp6,metadata=0x5,icmp_type=135,
              icmp_code=0
          actions=resubmit(,23)
      cookie=0x0, duration=47.068s, table=22, n_packets=0, n_bytes=0,
          idle_age=47, priority=65535,icmp6,metadata=0x5,icmp_type=136,
              icmp_code=0
          actions=resubmit(,23)
      cookie=0x0, duration=47.068s, table=22, n_packets=0, n_bytes=0,
          idle_age=47, priority=65535,ct_state=+inv+trk,metadata=0x5
          actions=drop
      cookie=0x0, duration=47.068s, table=22, n_packets=0, n_bytes=0,
          idle_age=47, priority=2002,ct_state=+new+trk,ipv6,reg6=0x3,
              metadata=0x5
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,23)
      cookie=0x0, duration=47.068s, table=22, n_packets=16, n_bytes=1922,
          idle_age=2, priority=2002,ct_state=+new+trk,ip,reg6=0x3,
              metadata=0x5
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,23)
      cookie=0x0, duration=47.068s, table=22, n_packets=0, n_bytes=0,
          idle_age=47, priority=2002,udp,reg6=0x3,metadata=0x5,
              nw_dst=255.255.255.255,tp_src=68,tp_dst=67
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,23)
      cookie=0x0, duration=47.068s, table=22, n_packets=0, n_bytes=0,
          idle_age=47, priority=2002,udp,reg6=0x3,metadata=0x5,
              nw_dst=192.168.1.0/24,tp_src=68,tp_dst=67
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,23)
      cookie=0x0, duration=47.069s, table=22, n_packets=0, n_bytes=0,
          idle_age=47, priority=2001,ipv6,reg6=0x3,metadata=0x5
          actions=drop
      cookie=0x0, duration=47.068s, table=22, n_packets=0, n_bytes=0,
          idle_age=47, priority=2001,ip,reg6=0x3,metadata=0x5
          actions=drop
      cookie=0x0, duration=47.068s, table=22, n_packets=2, n_bytes=767,
          idle_age=27, priority=1,ip,metadata=0x5
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,23)
      cookie=0x0, duration=47.068s, table=22, n_packets=0, n_bytes=0,
          idle_age=47, priority=1,ipv6,metadata=0x5
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,23)
      cookie=0x0, duration=179.457s, table=25, n_packets=2, n_bytes=84,
          idle_age=33, priority=50,arp,metadata=0x5,arp_tpa=192.168.1.5,
              arp_op=1
          actions=move:NXM_OF_ETH_SRC[]->NXM_OF_ETH_DST[],
              mod_dl_src:fa:16:3e:15:7d:13,load:0x2->NXM_OF_ARP_OP[],
              move:NXM_NX_ARP_SHA[]->NXM_NX_ARP_THA[],
              load:0xfa163e157d13->NXM_NX_ARP_SHA[],
              move:NXM_OF_ARP_SPA[]->NXM_OF_ARP_TPA[],
              load:0xc0a80105->NXM_OF_ARP_SPA[],
              move:NXM_NX_REG6[]->NXM_NX_REG7[],
              load:0->NXM_NX_REG6[],load:0->NXM_OF_IN_PORT[],resubmit(,32)
      cookie=0x0, duration=192.587s, table=26, n_packets=61, n_bytes=5607,
          idle_age=6, priority=50,metadata=0x5,dl_dst=fa:16:3e:15:7d:13
          actions=load:0x3->NXM_NX_REG7[],resubmit(,32)
      cookie=0x0, duration=184.640s, table=32, n_packets=61, n_bytes=5607,
          idle_age=6, priority=100,reg7=0x3,metadata=0x5
          actions=load:0x5->NXM_NX_TUN_ID[0..23],
              set_field:0x3/0xffffffff->tun_metadata0,
              move:NXM_NX_REG6[0..14]->NXM_NX_TUN_METADATA0[16..30],output:4
      cookie=0x0, duration=47.069s, table=49, n_packets=0, n_bytes=0,
          idle_age=47, priority=110,icmp6,metadata=0x5,icmp_type=135,
              icmp_code=0
          actions=resubmit(,50)
      cookie=0x0, duration=47.068s, table=49, n_packets=0, n_bytes=0,
          idle_age=47, priority=110,icmp6,metadata=0x5,icmp_type=136,
              icmp_code=0
          actions=resubmit(,50)
      cookie=0x0, duration=47.068s, table=49, n_packets=34, n_bytes=4455,
          idle_age=0, priority=100,ip,metadata=0x5
          actions=load:0x1->NXM_NX_REG0[0],resubmit(,50)
      cookie=0x0, duration=47.068s, table=49, n_packets=0, n_bytes=0,
          idle_age=47, priority=100,ipv6,metadata=0x5
          actions=load:0x1->NXM_NX_REG0[0],resubmit(,50)
      cookie=0x0, duration=192.587s, table=52, n_packets=0, n_bytes=0,
          idle_age=192, priority=65535,ct_state=+inv+trk,
              metadata=0x5
          actions=drop
      cookie=0x0, duration=192.587s, table=52, n_packets=0, n_bytes=0,
          idle_age=192, priority=65535,ct_state=-new-est+rel-inv+trk,
              metadata=0x5
          actions=resubmit(,50)
      cookie=0x0, duration=192.587s, table=52, n_packets=27, n_bytes=2316,
          idle_age=6, priority=65535,ct_state=-new+est-rel-inv+trk,
              metadata=0x5
          actions=resubmit(,50)
      cookie=0x0, duration=192.587s, table=52, n_packets=0, n_bytes=0,
          idle_age=192, priority=2002,ct_state=+new+trk,icmp,reg7=0x3,
              metadata=0x5
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,50)
      cookie=0x0, duration=192.587s, table=52, n_packets=0, n_bytes=0,
          idle_age=192, priority=2002,ct_state=+new+trk,ipv6,reg7=0x3,
              metadata=0x5
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,50)
      cookie=0x0, duration=192.587s, table=52, n_packets=0, n_bytes=0,
          idle_age=192, priority=2002,udp,reg7=0x3,metadata=0x5,
              nw_src=192.168.1.0/24,tp_src=67,tp_dst=68
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,50)
      cookie=0x0, duration=192.587s, table=52, n_packets=0, n_bytes=0,
          idle_age=192, priority=2002,ct_state=+new+trk,ip,reg7=0x3,
              metadata=0x5,nw_src=203.0.113.103
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,50)
      cookie=0x0, duration=192.587s, table=52, n_packets=0, n_bytes=0,
          idle_age=192, priority=2001,ip,reg7=0x3,metadata=0x5
          actions=drop
      cookie=0x0, duration=192.587s, table=52, n_packets=0, n_bytes=0,
          idle_age=192, priority=2001,ipv6,reg7=0x3,metadata=0x5
          actions=drop
      cookie=0x0, duration=192.587s, table=52, n_packets=25, n_bytes=2604,
          idle_age=6, priority=1,ip,metadata=0x5
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,53)
      cookie=0x0, duration=192.587s, table=52, n_packets=0, n_bytes=0,
          idle_age=192, priority=1,ipv6,metadata=0x5
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,53)
      cookie=0x0, duration=192.587s, table=54, n_packets=0, n_bytes=0,
          idle_age=192, priority=90,ip,reg7=0x3,metadata=0x5,
              dl_dst=fa:16:3e:15:7d:13,nw_dst=224.0.0.0/4
          actions=resubmit(,55)
      cookie=0x0, duration=192.587s, table=54, n_packets=0, n_bytes=0,
          idle_age=192, priority=90,ip,reg7=0x3,metadata=0x5,
              dl_dst=fa:16:3e:15:7d:13,nw_dst=255.255.255.255
          actions=resubmit(,55)
      cookie=0x0, duration=192.587s, table=54, n_packets=0, n_bytes=0,
          idle_age=192, priority=90,ip,reg7=0x3,metadata=0x5,
              dl_dst=fa:16:3e:15:7d:13,nw_dst=192.168.1.5
          actions=resubmit(,55)
      cookie=0x0, duration=192.587s, table=54, n_packets=0, n_bytes=0,
          idle_age=192, priority=80,ipv6,reg7=0x3,metadata=0x5,
              dl_dst=fa:16:3e:15:7d:13
          actions=drop
      cookie=0x0, duration=192.587s, table=54, n_packets=0, n_bytes=0,
          idle_age=192, priority=80,ip,reg7=0x3,metadata=0x5,
              dl_dst=fa:16:3e:15:7d:13
          actions=drop
      cookie=0x0, duration=192.587s, table=55, n_packets=0, n_bytes=0,
          idle_age=192, priority=50,reg7=0x3,metadata=0x5,
              dl_dst=fa:16:3e:15:7d:13
          actions=resubmit(,64)
      
    • For each compute node that contains neither the instance nor a DHCP agent on the subnet, OVN creates the following flows:

      cookie=0x0, duration=189.763s, table=52, n_packets=0, n_bytes=0,
          idle_age=189, priority=2002,ct_state=+new+trk,ipv6,reg7=0x4,
              metadata=0x4
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,53)
      cookie=0x0, duration=189.763s, table=52, n_packets=0, n_bytes=0,
          idle_age=189, priority=2002,ct_state=+new+trk,ip,reg7=0x4,
              metadata=0x4,nw_src=192.168.1.5
          actions=load:0x1->NXM_NX_REG0[1],resubmit(,53)
      

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