HOS – Control Plane Service Verification (1 of 4)

Following on from the previous post it is necessary to demonstrate that the Helion OpenStack environment is in a healthy state and the neutron networking is operational.

First let’s verify the basic overcloud control plane services:

On the Overcloud Controller

Check the compute services

nova service-list

[expect Status:enabled and State:up]

+----+------------------+-----------------------------------------------------+----------+---------+-------+----------------------------+-----------------+

| Id | Binary           | Host                                          | Zone | Status  | State | Updated_at | Disabled Reason |

+----+------------------+-----------------------------------------------------+----------+---------+-------+----------------------------+-----------------+

| 3  | nova-conductor   | overcloud-ce-controller-controller1-7g6rbkrawrmb| internal | enabled | up| 2015-11-23T09:53:00.000000 | -   |

| 6  | nova-cert| overcloud-ce-controller-controller1-7g6rbkrawrmb| internal | enabled | up| 2015-11-23T09:52:59.000000 | -   |

| 9  | nova-conductor   | overcloud-ce-controller-controller2-wjg7a27togvj| internal | enabled | up| 2015-11-23T09:53:02.000000 | -   |

| 15 | nova-scheduler   | overcloud-ce-controller-controller1-7g6rbkrawrmb| internal | enabled | up| 2015-11-23T09:53:00.000000 | -   |

| 18 | nova-cert| overcloud-ce-controller-controller2-wjg7a27togvj| internal | enabled | up| 2015-11-23T09:53:01.000000 | -   |

| 21 | nova-scheduler   | overcloud-ce-controller-controller2-wjg7a27togvj| internal | enabled | up| 2015-11-23T09:52:58.000000 | -   |

| 24 | nova-conductor   | overcloud-ce-controller-controller0-dlmy4f5tbc5d| internal | enabled | up| 2015-11-23T09:53:04.000000 | -   |

| 27 | nova-cert| overcloud-ce-controller-controller0-dlmy4f5tbc5d| internal | enabled | up| 2015-11-23T09:53:01.000000 | -   |

| 30 | nova-scheduler   | overcloud-ce-controller-controller0-dlmy4f5tbc5d| internal | enabled | up| 2015-11-23T09:53:03.000000 | -   |

| 33 | nova-consoleauth | overcloud-ce-controller-controller0-dlmy4f5tbc5d| internal | enabled | up| 2015-11-23T09:52:57.000000 | -   |

| 36 | nova-compute | overcloud-ce-novacompute1-novacompute1-tpodwp2ljbhw | nova | enabled | up| 2015-11-23T09:53:03.000000 | None|

| 39 | nova-compute | overcloud-ce-novacompute0-novacompute0-cnfiwerfvbht | nova | enabled | up| 2015-11-23T09:53:04.000000 | None|

+----+------------------+-----------------------------------------------------+----------+---------+-------+----------------------------+-----------------+

Check the networking services

neutron agent-list

[expect alive: 🙂 and adminstateup:true]

 +--------------------------------------+--------------------+-----------------------------------------------------+-------+----------------+---------------------------+

| id                                    | agent_type        | host                                              | alive | admin_state_up | binary|

+--------------------------------------+--------------------+-----------------------------------------------------+-------+----------------+---------------------------+

| 1867a83d-e4fa-4ee3-9893-1d8b72547ccf | Open vSwitch agent | overcloud-ce-novacompute1-novacompute1-tpodwp2ljbhw | 🙂   | True   | neutron-openvswitch-agent |

| 193548d7-009a-4432-9533-28d8445ccd6f | Open vSwitch agent | overcloud-ce-novacompute0-novacompute0-cnfiwerfvbht | 🙂   | True   | neutron-openvswitch-agent |

| 2ae95bab-0ad4-47d6-a4dc-288f6cac2aff | L3 agent   | overcloud-ce-controller-controller1-7g6rbkrawrmb| 🙂   | True   | neutron-l3-agent  |

| 2d174ed9-5076-4d24-83e1-f8e13c01e20c | Metadata agent | overcloud-ce-novacompute0-novacompute0-cnfiwerfvbht | 🙂   | True   | neutron-metadata-agent|

| 2dab983c-ecc6-4616-ba66-60aa5de5ca00 | L3 agent   | overcloud-ce-controller-controller0-dlmy4f5tbc5d| 🙂   | True   | neutron-l3-agent  |

| 32ea5ae1-035c-45f4-9499-a99e8517d5f9 | Metadata agent | overcloud-ce-controller-controller0-dlmy4f5tbc5d| 🙂   | True   | neutron-metadata-agent|

| 4283a946-62f4-488d-be5f-c65e95ffcde2 | DHCP agent | overcloud-ce-controller-controller2-wjg7a27togvj| 🙂   | True   | neutron-dhcp-agent|

| 4801da91-b2a9-4310-b11f-a5cc5e995977 | L3 agent   | overcloud-ce-controller-controller2-wjg7a27togvj| 🙂   | True   | neutron-l3-agent  |

| 4e75a59e-002b-4e6a-9cdf-1a18d690f729 | L3 agent   | overcloud-ce-novacompute0-novacompute0-cnfiwerfvbht | 🙂   | True   | neutron-l3-agent  |

| 61546593-86fb-4954-8cc5-56f7592ecfe3 | Open vSwitch agent | overcloud-ce-controller-controller2-wjg7a27togvj| 🙂   | True   | neutron-openvswitch-agent |

| 65894379-60d3-4ba9-8c83-154903a1b1c4 | DHCP agent | overcloud-ce-controller-controller0-dlmy4f5tbc5d| 🙂   | True   | neutron-dhcp-agent|

| 78d8c1e9-e594-4436-b361-8ae8c5e93eca | DHCP agent | overcloud-ce-controller-controller1-7g6rbkrawrmb| 🙂   | True   | neutron-dhcp-agent|

| 818cd044-ac99-41a8-b265-5e5bcc588ebe | L3 agent   | overcloud-ce-novacompute1-novacompute1-tpodwp2ljbhw | 🙂   | True   | neutron-l3-agent  |

| 86335e06-ca66-49e3-9284-08e19fba202d | Metadata agent | overcloud-ce-novacompute1-novacompute1-tpodwp2ljbhw | 🙂   | True   | neutron-metadata-agent|

| b6c3c769-8093-4e7b-8210-4875dc12f034 | Open vSwitch agent | overcloud-ce-controller-controller0-dlmy4f5tbc5d| 🙂   | True   | neutron-openvswitch-agent |

| b91d9eb2-a7ac-439b-8f8b-e5ad13f00bb1 | Metadata agent | overcloud-ce-controller-controller2-wjg7a27togvj| 🙂   | True   | neutron-metadata-agent|

| e2f34b55-b759-4b6a-accb-543d576851a0 | Open vSwitch agent | overcloud-ce-controller-controller1-7g6rbkrawrmb| 🙂   | True   | neutron-openvswitch-agent |

| eddf55c5-ae7b-402a-991a-7d2f401d7c59 | Metadata agent | overcloud-ce-controller-controller1-7g6rbkrawrmb| 🙂   | True   | neutron-metadata-agent|

+--------------------------------------+--------------------+-----------------------------------------------------+-------+----------------+---------------------------+

Check the galera mysql cluster

mysql -e “show status like ‘wsrep_%'”

[expect wsrepreplicated:2, wsrepincomingaddresses:[,,] or [3 ip addresses],wsreplocalstatecomment:Synced]

+----------------------------+--------------------------------------+

| Variable_name             | Value|

+----------------------------+--------------------------------------+

| wsrep_local_state_uuid    | bc0491b1-77fc-11e5-8494-dabc449af6f2 |

| wsrep_protocol_version    | 4|

| wsrep_last_committed      | 5986661  |

| wsrep_replicated          | 5986657  |

| wsrep_replicated_bytes    | 4137351580   |

| wsrep_received            | 13627|

| wsrep_received_bytes      | 110649   |

| wsrep_local_commits       | 5985563  |

| wsrep_local_cert_failures | 1|

| wsrep_local_replays       | 0|

| wsrep_local_send_queue    | 0|

| wsrep_local_send_queue_avg | 0.000000 |

| wsrep_local_recv_queue    | 0|

| wsrep_local_recv_queue_avg | 0.000000 |

| wsrep_flow_control_paused  | 0.000000 |

| wsrep_flow_control_sent   | 0|

| wsrep_flow_control_recv   | 0|

| wsrep_cert_deps_distance   | 19.111524|

| wsrep_apply_oooe          | 0.000000 |

| wsrep_apply_oool          | 0.000000 |

| wsrep_apply_window        | 1.000000 |

| wsrep_commit_oooe         | 0.000000 |

| wsrep_commit_oool         | 0.000000 |

| wsrep_commit_window       | 1.000000 |

| wsrep_local_state         | 4|

| wsrep_local_state_comment  | Synced   |

| wsrep_cert_index_size     | 68   |

| wsrep_causal_reads        | 0|

| wsrep_incoming_addresses   | ,,   |

| wsrep_cluster_conf_id     | 4|

| wsrep_cluster_size        | 3|

| wsrep_cluster_state_uuid   | bc0491b1-77fc-11e5-8494-dabc449af6f2 |

| wsrep_cluster_status      | Primary  |

| wsrep_connected           | ON   |

| wsrep_local_bf_aborts     | 0|

| wsrep_local_index         | 2|

| wsrep_provider_name       | Galera   |

| wsrep_provider_vendor     | Codership Oy <info@codership.com>|

| wsrep_provider_version    | 2.10(r175)   |

| wsrep_ready               | ON   |

+----------------------------+--------------------------------------+

Check the message queue is running

rabbitmqctl cluster_status

root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# rabbitmqctl cluster_status

Cluster status of node 'rabbit@overcloud-ce-controller-controller0-dlmy4f5tbc5d' ...

[{nodes,[{disc,['rabbit@overcloud-ce-controller-controller0-dlmy4f5tbc5d',

   'rabbit@overcloud-ce-controller-controller1-7g6rbkrawrmb',

   'rabbit@overcloud-ce-controller-controller2-wjg7a27togvj']}]},

{running_nodes,['rabbit@overcloud-ce-controller-controller1-7g6rbkrawrmb',

'rabbit@overcloud-ce-controller-controller2-wjg7a27togvj',

'rabbit@overcloud-ce-controller-controller0-dlmy4f5tbc5d']},

{cluster_name,<<"rabbit@overcloud-ce-controller-controller0-dlmy4f5tbc5d.novalocal">>},

{partitions,[]}]

Gather the controller configurations

Controller 0

Get the Openvswitch configuration

ovs-vsctl show

root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# ovs-vsctl show

4a0f6c38-215d-498f-a5ac-0d0804d21665

   Bridge br-ex

   Port br-ex

   Interface br-ex

   type: internal

   Port "qg-5b6914d7-f7"

   Interface "qg-5b6914d7-f7"

   type: internal

   Port "vlan1274"

   Interface "vlan1274"

   Port "qg-1d075498-b3"

   Interface "qg-1d075498-b3"

   type: internal

   Bridge br-int

   fail_mode: secure

   Port "qr-0703300d-84"

   tag: 1

   Interface "qr-0703300d-84"

   type: internal

   Port "tap9065ae01-64"

   tag: 6

   Interface "tap9065ae01-64"

   type: internal

   Port "qr-0b36af9c-8c"

   Interface "qr-0b36af9c-8c"

   type: internal

   Port "sg-f4b08ba6-10"

   Interface "sg-f4b08ba6-10"

   type: internal

   Port "sg-161f8764-8f"

   tag: 1

   Interface "sg-161f8764-8f"

   type: internal

   Port patch-tun

   Interface patch-tun

   type: patch

   options: {peer=patch-int}

   Port "sg-8b3ee21d-13"

   tag: 3

   Interface "sg-8b3ee21d-13"

   type: internal

   Port br-int

   Interface br-int

   type: internal

   Port "tapc8e92a29-75"

   tag: 1

   Interface "tapc8e92a29-75"

   type: internal

   Port int-br-svc

   Interface int-br-svc

   type: patch

   options: {peer=phy-br-svc}

   Port "sg-00f5256d-4f"

   tag: 1

   Interface "sg-00f5256d-4f"

   type: internal

   Port "tapd4181845-fb"

   tag: 2

   Interface "tapd4181845-fb"

   type: internal

   Port "qr-c73759bd-9d"

   tag: 3

   Interface "qr-c73759bd-9d"

   type: internal

   Port "qr-accfb1df-cc"

   tag: 1

   Interface "qr-accfb1df-cc"

   type: internal

   Port "tapfc6ec33e-66"

   tag: 3

   Interface "tapfc6ec33e-66"

   type: internal

   Bridge br-tun

   fail_mode: secure

   Port patch-int

   Interface patch-int

   type: patch

   options: {peer=patch-tun}

   Port "vxlan-0afe1927"

   Interface "vxlan-0afe1927"

   type: vxlan

   options: {df_default="false", in_key=flow, local_ip="10.254.25.41", out_key=flow, remote_ip="10.254.25.39"}

   Port "vxlan-0afe192b"

   Interface "vxlan-0afe192b"

   type: vxlan

   options: {df_default="false", in_key=flow, local_ip="10.254.25.41", out_key=flow, remote_ip="10.254.25.43"}

   Port "vxlan-0afe192c"

   Interface "vxlan-0afe192c"

   type: vxlan

   options: {df_default="false", in_key=flow, local_ip="10.254.25.41", out_key=flow, remote_ip="10.254.25.44"}

   Port br-tun

   Interface br-tun

   type: internal

   Bridge br-svc

   Port phy-br-svc

   Interface phy-br-svc

   type: patch

   options: {peer=int-br-svc}

   Port br-svc

   Interface br-svc

   type: internal

   Port "vlan1273"

   Interface "vlan1273"

   ovs_version: "2.3.0"

Gather the firewall configuration

iptables -L

root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~#  iptables -L

Chain INPUT (policy ACCEPT)

target prot opt source   destination

neutron-openvswi-INPUT  all  --  anywhere anywhere

nova-api-INPUT  all  --  anywhere anywhere

ACCEPT tcp  --  anywhere anywhere tcp dpt:1993

ACCEPT tcp  --  anywhere anywhere tcp dpt:21131

ACCEPT tcp  --  anywhere anywhere tcp dpt:6080

ACCEPT tcp  --  anywhere anywhere tcp dpt:8775

ACCEPT tcp  --  anywhere anywhere tcp dpt:8774

ACCEPT tcp  --  anywhere anywhere tcp dpt:8000

ACCEPT tcp  --  anywhere anywhere tcp dpt:8003

ACCEPT tcp  --  anywhere anywhere tcp dpt:8004

ACCEPT tcp  --  anywhere anywhere tcp dpt:https

ACCEPT tcp  --  anywhere anywhere tcp dpt:5000

ACCEPT tcp  --  anywhere anywhere tcp dpt:35357

ACCEPT tcp  --  anywhere anywhere tcp dpt:14000

ACCEPT tcp  --  anywhere anywhere multiport dports epmd,61000

ACCEPT tcp  --  anywhere anywhere multiport dports 5900:5999

ACCEPT tcp  --  anywhere anywhere multiport dports 6080

ACCEPT tcp  --  anywhere anywhere tcp dpt:amqps

ACCEPT tcp  --  anywhere anywhere tcp dpt:rmqchk

ACCEPT tcp  --  anywhere anywhere tcp dpt:amqp

ACCEPT tcp  --  anywhere anywhere multiport dports 8774,8775

ACCEPT tcp  --  anywhere anywhere tcp dpt:9501

ACCEPT tcp  --  anywhere anywhere tcp dpt:mysqlchk

ACCEPT tcp  --  anywhere anywhere tcp dpt:mysql

ACCEPT tcp  --  anywhere anywhere tcp dpt:4444

ACCEPT tcp  --  anywhere anywhere tcp dpt:4568

ACCEPT tcp  --  anywhere anywhere tcp dpt:4567

ACCEPT tcp  --  anywhere anywhere multiport dports 5000,35357

ACCEPT tcp  --  anywhere anywhere multiport dports http,https

ACCEPT tcp  --  anywhere anywhere multiport dports 8000,8003,8004

ACCEPT tcp  --  anywhere anywhere tcp dpt:9191

ACCEPT tcp  --  anywhere anywhere tcp dpt:9292

ACCEPT udp  --  anywhere anywhere udp dpt:tftp

ACCEPT tcp  --  anywhere anywhere tcp dpt:9696

ACCEPT tcp  --  anywhere anywhere tcp dpt:8777

ACCEPT tcp  --  anywhere anywhere tcp dpt:iscsi-target

ACCEPT tcp  --  anywhere anywhere tcp dpt:8776

ACCEPT tcp  --  anywhere anywhere tcp dpt:6556

ACCEPT tcp  --  anywhere anywhere tcp dpt:http-alt

ACCEPT all  --  anywhere anywhere PKTTYPE = multicast

ACCEPT udp  --  anywhere anywhere udp dpt:4789

ACCEPT all  --  anywhere anywhere

ACCEPT tcp  --  anywhere anywhere tcp dpt:ssh

ACCEPT udp  --  anywhere anywhere udp dpt:ntp

ACCEPT tcp  --  anywhere anywhere tcp dpt:sunrpc

ACCEPT udp  --  anywhere anywhere udp dpt:sunrpc

ACCEPT tcp  --  anywhere anywhere multiport dports domain,953

ACCEPT udp  --  anywhere anywhere multiport dports domain,953

ACCEPT tcp  --  anywhere anywhere tcp dpt:nfs

ACCEPT udp  --  anywhere anywhere udp dpt:nfs

ACCEPT udp  --  anywhere anywhere udp dpt:bootpc

ACCEPT udp  --  anywhere anywhere udp dpt:bootps

ACCEPT tcp  --  anywhere anywhere tcp dpt:27410

ACCEPT all  --  anywhere anywhere state RELATED,ESTABLISHED

ACCEPT icmp --  anywhere anywhere icmp echo-request state NEW,RELATED,ESTABLISHED

DROP   all  --  anywhere anywhere



Chain FORWARD (policy ACCEPT)

target prot opt source   destination

neutron-filter-top  all  --  anywhere anywhere

neutron-openvswi-FORWARD  all  --  anywhere anywhere

nova-filter-top  all  --  anywhere anywhere

nova-api-FORWARD  all  --  anywhere anywhere

ACCEPT all  --  anywhere 192.168.122.0/24

ACCEPT all  --  anywhere 192.0.2.0/24



Chain OUTPUT (policy ACCEPT)

target prot opt source   destination

neutron-filter-top  all  --  anywhere anywhere

neutron-openvswi-OUTPUT  all  --  anywhere anywhere

nova-filter-top  all  --  anywhere anywhere

nova-api-OUTPUT  all  --  anywhere anywhere

ACCEPT icmp --  anywhere anywhere icmp echo-reply state RELATED,ESTABLISHED



Chain neutron-filter-top (2 references)

target prot opt source   destination

neutron-openvswi-local  all  --  anywhere anywhere



Chain neutron-openvswi-FORWARD (1 references)

target prot opt source   destination



Chain neutron-openvswi-INPUT (1 references)

target prot opt source   destination



Chain neutron-openvswi-OUTPUT (1 references)

target prot opt source   destination



Chain neutron-openvswi-local (1 references)

target prot opt source   destination



Chain neutron-openvswi-sg-chain (0 references)

target prot opt source   destination



Chain neutron-openvswi-sg-fallback (0 references)

target prot opt source   destination

DROP   all  --  anywhere anywhere



Chain nova-api-FORWARD (1 references)

target prot opt source   destination



Chain nova-api-INPUT (1 references)

target prot opt source   destination

ACCEPT tcp  --  anywhere overcloud-ce-controller-controller0-dlmy4f5tbc5d  tcp dpt:8775



Chain nova-api-OUTPUT (1 references)

target prot opt source   destination



Chain nova-api-local (1 references)

target prot opt source   destination



Chain nova-filter-top (2 references)

target prot opt source   destination

nova-api-local  all  --  anywhere anywhere

Check the network interfaces

ifconfig

root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# ifconfig

br-svcLink encap:Ethernet  HWaddr 00:17:a4:77:c4:4c

 inet6 addr: fe80::217:a4ff:fe77:c44c/64 Scope:Link

 UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

 RX packets:2772493 errors:0 dropped:0 overruns:0 frame:0

 TX packets:46102 errors:0 dropped:0 overruns:0 carrier:0

 collisions:0 txqueuelen:0

 RX bytes:290319675 (276.8 MiB)  TX bytes:16179642 (15.4 MiB)



eth0  Link encap:Ethernet  HWaddr 00:17:a4:77:c4:4c

 inet addr:10.254.25.41  Bcast:10.254.25.255  Mask:255.255.255.0

 inet6 addr: fe80::217:a4ff:fe77:c44c/64 Scope:Link

 UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

 RX packets:1523742964 errors:0 dropped:0 overruns:0 frame:0

 TX packets:1790497085 errors:0 dropped:0 overruns:0 carrier:0

 collisions:0 txqueuelen:1000

 RX bytes:726306267812 (676.4 GiB)  TX bytes:1050402770254 (978.2 GiB)



eth1  Link encap:Ethernet  HWaddr 00:17:a4:77:c4:4e

 UP BROADCAST MULTICAST  MTU:1500  Metric:1

 RX packets:0 errors:0 dropped:0 overruns:0 frame:0

 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

 collisions:0 txqueuelen:1000

 RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)



eth2  Link encap:Ethernet  HWaddr a0:48:1c:e3:76:d8

 UP BROADCAST MULTICAST  MTU:1500  Metric:1

 RX packets:0 errors:0 dropped:0 overruns:0 frame:0

 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

 collisions:0 txqueuelen:1000

 RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)



eth3  Link encap:Ethernet  HWaddr a0:48:1c:e3:76:dc

 UP BROADCAST MULTICAST  MTU:1500  Metric:1

 RX packets:0 errors:0 dropped:0 overruns:0 frame:0

 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

 collisions:0 txqueuelen:1000

 RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)



loLink encap:Local Loopback

 inet addr:127.0.0.1  Mask:255.0.0.0

 inet6 addr: ::1/128 Scope:Host

 UP LOOPBACK RUNNING  MTU:65536  Metric:1

 RX packets:1945047763 errors:0 dropped:0 overruns:0 frame:0

 TX packets:1945047763 errors:0 dropped:0 overruns:0 carrier:0

 collisions:0 txqueuelen:0

 RX bytes:602522625790 (561.1 GiB)  TX bytes:602522625790 (561.1 GiB)



vlan1273  Link encap:Ethernet  HWaddr 00:17:a4:77:c4:4c

 UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

 RX packets:4256076 errors:0 dropped:0 overruns:0 frame:0

 TX packets:49957 errors:0 dropped:0 overruns:0 carrier:0

 collisions:0 txqueuelen:0

 RX bytes:328535584 (313.3 MiB)  TX bytes:16677363 (15.9 MiB)



vlan1274  Link encap:Ethernet  HWaddr 00:17:a4:77:c4:4c

 inet6 addr: fe80::217:a4ff:fe77:c44c/64 Scope:Link

 UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

 RX packets:4177709 errors:0 dropped:0 overruns:0 frame:0

 TX packets:112156 errors:0 dropped:0 overruns:0 carrier:0

 collisions:0 txqueuelen:0

 RX bytes:581570315 (554.6 MiB)  TX bytes:7187715 (6.8 MiB)

Check the routing configuration

route -n

root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# route -n

Kernel IP routing table

Destination         Gateway         Genmask         Flags   Metric RefUse Iface

0.0.0.0             10.254.25.1     0.0.0.0         UG      0       00      eth0

10.254.25.0         0.0.0.0         255.255.255.0   U       0       00      eth0

169.254.169.254     10.254.25.14    255.255.255.255 UGH     0       00      eth0

Sometimes it’s useful to get the arp table too

arp -an

root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# arp -an

? (10.254.25.1) at 00:00:0c:9f:f4:f8 [ether] on eth0

? (10.254.25.43) at 00:17:a4:77:c4:58 [ether] on eth0

? (10.254.25.12) at 00:17:a4:77:c4:3c [ether] on eth0

? (10.254.25.35) at 00:17:a4:77:c4:48 [ether] on eth0

? (10.254.25.42) at 00:17:a4:77:c4:50 [ether] on eth0

? (10.254.25.39) at 00:17:a4:77:c4:40 [ether] on eth0

? (10.254.25.38) at 00:17:a4:77:c4:48 [ether] on eth0

? (10.254.25.3) at 00:2a:6a:8b:88:43 [ether] on eth0

? (10.254.25.14) at 00:17:a4:77:c4:44 [ether] on eth0

? (10.254.25.40) at 00:17:a4:77:c4:54 [ether] on eth0

? (10.254.25.2) at 00:2a:6a:8b:8a:43 [ether] on eth0

? (10.254.25.44) at 00:17:a4:77:c4:f2 [ether] on eth0

? (10.254.25.250) at 2c:59:e5:95:0d:ae [ether] on eth0

? (10.254.25.13) at 00:56:31:33:8d:a1 [ether] on eth0

Check what network namespaces are configured

ip netns

root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# ip netns

qrouter-6903d563-80f4-40b0-ba77-8774a915a323

qdhcp-e99f2cdd-eb42-4466-9b17-7cb85636c013

qdhcp-73ff3b91-77ad-4ef4-aa67-a99a5ef57650

snat-8497d1cb-c2fa-46a5-9e42-1bfceb810204

qrouter-8497d1cb-c2fa-46a5-9e42-1bfceb810204

qdhcp-e70da3b0-ad8d-4ec0-9dd7-40ba563d2416

qdhcp-4259ab26-a1c4-427e-a7e0-b941368c4e23

snat-64b856f2-00a7-4e2f-8abd-aa34ab454c34

qrouter-64b856f2-00a7-4e2f-8abd-aa34ab454c34

If you’re trying to debug an OpenStack issue then gather the same details above for all controller and compute nodes.

The next post will cover North-South Fixed IP Traffic Flow

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