[Openstack] No IP assigned to Instances

Janki Chhatbar jankihchhatbar at gmail.com
Tue Nov 17 12:05:41 UTC 2015


Hi

It seems VXLAN tunnel is not created. Run these 2 commands on compute and
neutron node.
1. Run "ovs-vsctl get Open_vSwitch . _uuid" - It will return a uuid, lets
call it uuid_returned.
2. Run "ovs-vsctl set Open_vSwitch <uuid_returned>
other_config:local_ip=<ip-of-your-data-interface>" - Data interface here
refers to whichever interface you want data traffic to use.

This will create a tunnel between Neutron and Compute node. DHCP messages
will ass through this tunnel and VMs ill get IP.


Thanks

Janki Chhatbar
M.Tech (Embedded Systems)
Nirma University
(+91) 9409239106

On Tue, Nov 17, 2015 at 2:08 PM, Silvia Fichera <fichera.sil at gmail.com>
wrote:

> Hi
> These are my output:
> neutron agent-list
>
> +--------------------------------------+----------------+-----------+-------+----------------+------------------------+
> | id                                   | agent_type     | host      |
> alive | admin_state_up | binary                 |
>
> +--------------------------------------+----------------+-----------+-------+----------------+------------------------+
> | df34892b-4e00-4504-a9c2-6d73b89e7be7 | Metadata agent | devstack1 | :-)
>   | True           | neutron-metadata-agent |
> | e6497bd3-d34d-413d-8d99-c34df2d4de7e | DHCP agent     | devstack1 | :-)
>   | True           | neutron-dhcp-agent     |
>
> +--------------------------------------+----------------+-----------+-------+----------------+------------------------+
>
> br-int Controller/Compute node:
>
> sudo ovs-ofctl dump-flows br-int -O Openflow13
> OFPST_FLOW reply (OF1.3) (xid=0x2):
>  cookie=0x0, duration=64916.193s, table=0, n_packets=9, n_bytes=1458,
> in_port=7,dl_src=fa:16:3e:cf:fd:30
> actions=set_field:0x40e->tun_id,load:0x1->NXM_NX_REG0[],goto_table:20
>  cookie=0x0, duration=66408.764s, table=0, n_packets=3, n_bytes=180,
> priority=0 actions=goto_table:20
>  cookie=0x0, duration=64916.188s, table=0, n_packets=0, n_bytes=0,
> priority=8192,in_port=7 actions=drop
>  cookie=0x2b00000000000047, duration=64906.395s, table=0, n_packets=0,
> n_bytes=0, priority=2,in_port=7 actions=output:5,output:6,CONTROLLER:65535
>  cookie=0x2b0000000000003e, duration=64996.333s, table=0, n_packets=0,
> n_bytes=0, priority=2,in_port=3
> actions=output:4,output:5,output:2,output:1,output:6,CONTROLLER:65535
>  cookie=0x2b00000000000046, duration=64906.395s, table=0, n_packets=0,
> n_bytes=0, priority=2,in_port=6 actions=output:5,output:7,CONTROLLER:65535
>  cookie=0x2b00000000000045, duration=64906.400s, table=0, n_packets=3517,
> n_bytes=211377, priority=2,in_port=5 actions=output:6,output:7
>  cookie=0x2b0000000000003f, duration=64996.332s, table=0, n_packets=0,
> n_bytes=0, priority=2,in_port=1
> actions=output:4,output:5,output:2,output:3,output:6,CONTROLLER:65535
>  cookie=0x2b0000000000003b, duration=64996.335s, table=0, n_packets=0,
> n_bytes=0, priority=2,in_port=4
> actions=output:5,output:2,output:3,output:1,output:6,CONTROLLER:65535
>  cookie=0x2b0000000000003d, duration=64996.333s, table=0, n_packets=0,
> n_bytes=0, priority=2,in_port=2
> actions=output:4,output:5,output:3,output:1,output:6,CONTROLLER:65535
>  cookie=0x0, duration=64916.143s, table=0, n_packets=0, n_bytes=0,
> tun_id=0x40e,in_port=6 actions=load:0x2->NXM_NX_REG0[],goto_table:20
>  cookie=0x0, duration=66411.533s, table=0, n_packets=1189, n_bytes=124845,
> dl_type=0x88cc actions=CONTROLLER:65535
>  cookie=0x2b00000000000007, duration=66411.622s, table=0, n_packets=0,
> n_bytes=0, priority=100,dl_type=0x88cc actions=CONTROLLER:65535
>  cookie=0x0, duration=66408.756s, table=20, n_packets=48, n_bytes=7470,
> priority=0 actions=goto_table:30
>  cookie=0x0, duration=66408.749s, table=30, n_packets=48, n_bytes=7470,
> priority=0 actions=goto_table:40
>  cookie=0x0, duration=64916.203s, table=40, n_packets=0, n_bytes=0,
> priority=36001,ip,in_port=7,dl_src=fa:16:3e:cf:fd:30,nw_src=10.10.10.7
> actions=goto_table:50
>  cookie=0x0, duration=66408.743s, table=40, n_packets=33, n_bytes=2520,
> priority=0 actions=goto_table:50
>  cookie=0x0, duration=66086.470s, table=40, n_packets=15, n_bytes=4950,
> priority=61012,udp,tp_src=68,tp_dst=67 actions=goto_table:50
>  cookie=0x0, duration=64916.203s, table=40, n_packets=0, n_bytes=0,
> priority=61011,udp,in_port=7,tp_src=67,tp_dst=68 actions=drop
>  cookie=0x0, duration=66408.737s, table=50, n_packets=48, n_bytes=7470,
> priority=0 actions=goto_table:60
>  cookie=0x0, duration=66408.732s, table=60, n_packets=48, n_bytes=7470,
> priority=0 actions=goto_table:70
>  cookie=0x0, duration=66408.727s, table=70, n_packets=48, n_bytes=7470,
> priority=0 actions=goto_table:80
>  cookie=0x0, duration=66408.722s, table=80, n_packets=48, n_bytes=7470,
> priority=0 actions=goto_table:90
>  cookie=0x0, duration=66408.717s, table=90, n_packets=48, n_bytes=7470,
> priority=0 actions=goto_table:100
>  cookie=0x0, duration=64916.217s, table=90, n_packets=0, n_bytes=0,
> priority=61006,udp,dl_src=fa:16:3e:48:27:5a,tp_src=67,tp_dst=68
> actions=goto_table:100
>  cookie=0x0, duration=66408.713s, table=100, n_packets=48, n_bytes=7470,
> priority=0 actions=goto_table:110
>  cookie=0x0, duration=64916.151s, table=110, n_packets=0, n_bytes=0,
> priority=8192,tun_id=0x40e actions=drop
>  cookie=0x0, duration=66408.687s, table=110, n_packets=3, n_bytes=180,
> priority=0 actions=drop
>  cookie=0x0, duration=64916.178s, table=110, n_packets=0, n_bytes=0,
> priority=16384,reg0=0x2,tun_id=0x40e,dl_dst=01:00:00:00:00:00/01:00:00:00:00:00
> actions=output:7
>  cookie=0x0, duration=64916.164s, table=110, n_packets=9, n_bytes=1458,
> priority=16383,reg0=0x1,tun_id=0x40e,dl_dst=01:00:00:00:00:00/01:00:00:00:00:00
> actions=output:7,output:6
>  cookie=0x0, duration=64916.183s, table=110, n_packets=0, n_bytes=0,
> tun_id=0x40e,dl_dst=fa:16:3e:cf:fd:30 actions=output:7
>  cookie=0x0, duration=64914.605s, table=110, n_packets=0, n_bytes=0,
> tun_id=0x40e,dl_dst=fa:16:3e:7e:0c:43 actions=output:6
>  cookie=0x0, duration=64914.763s, table=110, n_packets=0, n_bytes=0,
> tun_id=0x40e,dl_dst=fa:16:3e:ef:2a:29 actions=output:6
>
>
> br-int Compute node:
>
> sudo ovs-ofctl dump-flows br-int -O Openflow13
> OFPST_FLOW reply (OF1.3) (xid=0x2):
>  cookie=0x0, duration=64953.73s, table=0, n_packets=0, n_bytes=0,
> tun_id=0x40e,in_port=1 actions=load:0x2->NXM_NX_REG0[],goto_table:20
>  cookie=0x0, duration=64953.782s, table=0, n_packets=9, n_bytes=1458,
> in_port=2,dl_src=fa:16:3e:ef:2a:29
> actions=set_field:0x40e->tun_id,load:0x1->NXM_NX_REG0[],goto_table:20
>  cookie=0x0, duration=64953.633s, table=0, n_packets=9, n_bytes=1458,
> in_port=4,dl_src=fa:16:3e:7e:0c:43
> actions=set_field:0x40e->tun_id,load:0x1->NXM_NX_REG0[],goto_table:20
>  cookie=0x2b00000000000048, duration=64945.347s, table=0, n_packets=2859,
> n_bytes=171540, priority=2,in_port=3 actions=output:2,output:4,output:1
>  cookie=0x2b0000000000004b, duration=64945.346s, table=0, n_packets=0,
> n_bytes=0, priority=2,in_port=1
> actions=output:3,output:2,output:4,CONTROLLER:65535
>  cookie=0x0, duration=64953.777s, table=0, n_packets=0, n_bytes=0,
> priority=8192,in_port=2 actions=drop
>  cookie=0x2b00000000000049, duration=64945.347s, table=0, n_packets=0,
> n_bytes=0, priority=2,in_port=2
> actions=output:3,output:4,output:1,CONTROLLER:65535
>  cookie=0x0, duration=64953.617s, table=0, n_packets=0, n_bytes=0,
> priority=8192,in_port=4 actions=drop
>  cookie=0x2b0000000000004a, duration=64945.347s, table=0, n_packets=0,
> n_bytes=0, priority=2,in_port=4
> actions=output:3,output:2,output:1,CONTROLLER:65535
>  cookie=0x0, duration=65039.282s, table=0, n_packets=954, n_bytes=100170,
> dl_type=0x88cc actions=CONTROLLER:65535
>  cookie=0x2b00000000000009, duration=65039.291s, table=0, n_packets=0,
> n_bytes=0, priority=100,dl_type=0x88cc actions=CONTROLLER:65535
>  cookie=0x0, duration=65035.376s, table=0, n_packets=12, n_bytes=858,
> priority=0 actions=goto_table:20
>  cookie=0x0, duration=65035.37s, table=20, n_packets=25, n_bytes=3356,
> priority=0 actions=goto_table:30
>  cookie=0x0, duration=65035.367s, table=30, n_packets=25, n_bytes=3356,
> priority=0 actions=goto_table:40
>  cookie=0x0, duration=64953.798s, table=40, n_packets=0, n_bytes=0,
> priority=36001,ip,in_port=2,dl_src=fa:16:3e:ef:2a:29,nw_src=10.10.10.8
> actions=goto_table:50
>  cookie=0x0, duration=64953.639s, table=40, n_packets=0, n_bytes=0,
> priority=36001,ip,in_port=4,dl_src=fa:16:3e:7e:0c:43,nw_src=10.10.10.9
> actions=goto_table:50
>  cookie=0x0, duration=65035.361s, table=40, n_packets=25, n_bytes=3356,
> priority=0 actions=goto_table:50
>  cookie=0x0, duration=64953.808s, table=40, n_packets=0, n_bytes=0,
> priority=61011,udp,in_port=2,tp_src=67,tp_dst=68 actions=drop
>  cookie=0x0, duration=64953.656s, table=40, n_packets=0, n_bytes=0,
> priority=61011,udp,in_port=4,tp_src=67,tp_dst=68 actions=drop
>  cookie=0x0, duration=65035.356s, table=50, n_packets=25, n_bytes=3356,
> priority=0 actions=goto_table:60
>  cookie=0x0, duration=65035.352s, table=60, n_packets=25, n_bytes=3356,
> priority=0 actions=goto_table:70
>  cookie=0x0, duration=65035.347s, table=70, n_packets=25, n_bytes=3356,
> priority=0 actions=goto_table:80
>  cookie=0x0, duration=65035.343s, table=80, n_packets=25, n_bytes=3356,
> priority=0 actions=goto_table:90
>  cookie=0x0, duration=65035.339s, table=90, n_packets=25, n_bytes=3356,
> priority=0 actions=goto_table:100
>  cookie=0x0, duration=64953.813s, table=90, n_packets=0, n_bytes=0,
> priority=61006,udp,dl_src=fa:16:3e:48:27:5a,tp_src=67,tp_dst=68
> actions=goto_table:100
>  cookie=0x0, duration=65035.335s, table=100, n_packets=25, n_bytes=3356,
> priority=0 actions=goto_table:110
>  cookie=0x0, duration=64953.738s, table=110, n_packets=0, n_bytes=0,
> priority=8192,tun_id=0x40e actions=drop
>  cookie=0x0, duration=64953.611s, table=110, n_packets=0, n_bytes=0,
> tun_id=0x40e,dl_dst=fa:16:3e:7e:0c:43 actions=output:4
>  cookie=0x0, duration=64953.768s, table=110, n_packets=0, n_bytes=0,
> tun_id=0x40e,dl_dst=fa:16:3e:ef:2a:29 actions=output:2
>  cookie=0x0, duration=64953.762s, table=110, n_packets=0, n_bytes=0,
> priority=16384,reg0=0x2,tun_id=0x40e,dl_dst=01:00:00:00:00:00/01:00:00:00:00:00
> actions=output:2,output:4
>  cookie=0x0, duration=64953.756s, table=110, n_packets=18, n_bytes=2916,
> priority=16383,reg0=0x1,tun_id=0x40e,dl_dst=01:00:00:00:00:00/01:00:00:00:00:00
> actions=output:2,output:1,output:4
>  cookie=0x0, duration=65035.33s, table=110, n_packets=7, n_bytes=440,
> priority=0 actions=drop
>
> Thanks
>
> 2015-11-17 8:42 GMT+01:00 Janki Chhatbar <jankihchhatbar at gmail.com>:
>
>> Hi
>>
>> Check for flows in both the bridges. Check if DHCP agent is running. I
>> faced the same issue but I was using GRE tunnels and manual installation.
>>
>> Thanks
>> Janki
>>
>> Sent from my BlackBerry 10 smartphone.
>> *From: *Silvia Fichera
>> *Sent: *Tuesday, 17 November 2015 13:09
>> *To: *Janki Chhatbar
>> *Cc: *<ovsdb-dev at lists.opendaylight.org>; openstack at lists.openstack.org
>> *Subject: *Re: [Openstack] No IP assigned to Instances
>>
>> Hi Janki,
>> I'm using vxlan and I have both br-int and br-ex (but by now I'm not
>> caring about external connection, I think that if it is not able to ping
>> internally it won't be able to reach internet).
>>
>> Thanks,
>> Silvia
>>
>> 2015-11-16 16:27 GMT+01:00 Janki Chhatbar <jankihchhatbar at gmail.com>:
>>
>>> Hi Silvia
>>>
>>> Could you check flows in ovs bridges. If you are using GRE tunnels,
>>> there should be only 1 bridge - br-int in compute and Neutron node each.
>>> You will need to configure IP of the end point for ‚Äétunnel.
>>>
>>> Thanks
>>>  Janki
>>>
>>> Sent from my BlackBerry 10 smartphone.
>>> *From: *Silvia Fichera
>>> *Sent: *Monday, 16 November 2015 20:16
>>> *To: *<ovsdb-dev at lists.opendaylight.org>; openstack at lists.openstack.org
>>> *Subject: *[Openstack] No IP assigned to Instances
>>>
>>> Hi all,
>>> I'm going to integrate Opendaylight with Openstack via Devstack.
>>>  In a server I have 5 VMs:
>>>
>>> VM1: eth0 10.30.3.231
>>>          eth1 10.0.0.1
>>>          This is my OpenStack Controller+compute.
>>>
>>> VM2: eth0 10.30.3.232
>>>          eth1 10.0.0.2
>>>          Compute node
>>>
>>> VM3: eth0 10.30.3.233
>>>          eth1 10.0.0.3
>>>          Compute node
>>>
>>> VM4: eth0 10.30.3.234
>>>          ODL Controller
>>>
>>> VM7: eth0 10.30.3.237
>>>          eth1
>>>          eth2
>>>          eth3
>>>          This is my OpenVSwitch
>>>
>>> I was able to build up the setup, but when I create instances the IP
>>> address is not assigned so I can't ping them.
>>>
>>> It seems that dhcp fails
>>>
>>> Starting network...
>>> udhcpc (v1.20.1) started
>>> Sending discover...
>>> Sending discover...
>>> Sending discover...
>>> Usage: /sbin/cirros-dhcpc <up|down>
>>> No lease, failing
>>>
>>> I've checked the neutron agent-list and there are the metadata agent and
>>> the dhcp agent.
>>>
>>> In my local. conf I have disabled the l3 agent:
>>>
>>> disable_service q-l3
>>> Q_L3_ENABLED=True
>>> ODL_L3=True
>>>
>>>
>>> Could you please help me?
>>>
>>> Thanks
>>>
>>>
>>> --
>>> Silvia Fichera
>>>
>>>
>>
>>
>> --
>> Silvia Fichera
>>
>>
>
>
> --
> Silvia Fichera
>
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