openstack team mailing list archive

[Ashok Kumaran <ashokkumaran.b@xxxxxxxxx>]

Thanks Salv for the crystal clear explanation .  Sorry my context was based
on without namespaces scenario .  I did not think from namespaces point of
view .

Regards
Ashok

Sent from my iPhone

On 23-May-2013, at 7:52 PM, Salvatore Orlando <sorlando@xxxxxxxxxx> wrote:



On 23 May 2013 13:15, Ashok Kumaran <ashokkumaran.b@xxxxxxxxx> wrote:

> Since you have a single node installation , for connecting to the VM's
> from the base host you won't need router/l3 stuffs.if its not happening
> then you might need to check the secgroup  rules.
>

This is true only if you're running without overlapping IPs. Otherwise the
IP addresses for your instances will be stored in a network namespace
called qdhcp-<network_id> and not reachable from the host machine, unless
one eithers executes commands from within the namespace or goes through a
Quantum router (and I believe you'd want to use floating IPs for that)


>
> Coming back to your question. Does the ifconfig shows internal router
> interface ip ? have you added the routerid in the l3agent.ini . If not can
> you add and restart the agent and check
>

Again if you're using namespaces, you'll need to run ifconfig or ip addr
show from within that namespace with 'ip netns <ns-name> exec <command>'.
The default security group already allow traffic between ports belonging to
the same tenant, and this is apparently your case. If you've altered the
default settings however, it might as well be that the security group is
now blocking the traffic.
If the interface does not show up this mean the l3 agent has either crashed
or is tracebacking. The logs, as suggested by Endre, might clarify what is
going on.

Salvatore


>
>
>
>
>
> Ashok
>
> Sent from my iPhone
>
> On 23-May-2013, at 5:27 PM, Nikhil Mittal <mittalnikhil@xxxxxxxxx> wrote:
>
> The /etc/quantum/l3-agent.ini file seems all correct. I didn't make any
> changes to it except the following line:
> interface_driver = quantum.agent.linux.interface.OVSInterfaceDriver
>
> Rest is default.
> -Nikhil
> On Thu, May 23, 2013 at 5:09 PM, Endre Karlson <endre.karlson@xxxxxxxxx>wrote:
>
>> Have you checked your config for the agent and eventually
>> /var/log/quantum/l3-agent.log or what the log file is called again ?
>>
>> Endre
>>
>>
>> 2013/5/23 Nikhil Mittal <mittalnikhil@xxxxxxxxx>
>>
>>>  Hi,
>>> I am able to successfully spawn VMs on my single-node Grizzly setup on
>>> Ubuntu 13.04. I can ping from one VM to another VM. But i can't ping the
>>> internal router interface which resides on the same subnet as the VMs. I
>>> have not yet configured external network and gateway this router. NOTE: I
>>> can't ping to VMs from the host machine which I believe is because of
>>> router not configured with external interface.
>>> Any suggestions ?
>>> Thanks,
>>> Nikhil
>>>
>>> Below is the output of useful commands:
>>>
>>> ===========================================
>>> root@osk-team:~# quantum port-list
>>>
>>> +--------------------------------------+------+-------------------+------------------------------------------------------------------------------------+
>>> | id                                   | name | mac_address       |
>>> fixed_ips
>>> |
>>>
>>> +--------------------------------------+------+-------------------+------------------------------------------------------------------------------------+
>>> | 53d63be8-967c-439c-8ffa-53ef1f7f3d37 |      | fa:16:3e:09:99:b9 |
>>> {"subnet_id": "5b53398a-70ce-44c6-8f6b-7a21a4ea48d7", "ip_address":
>>> "10.78.99.84"} |
>>> | 565eb936-fb89-42a9-9482-0f089907c35a |      | fa:16:3e:96:78:92 |
>>> {"subnet_id": "5b53398a-70ce-44c6-8f6b-7a21a4ea48d7", "ip_address":
>>> "10.78.99.87"} |
>>> | 6f01314f-6f47-4884-b812-1d66fae9ca3e |      | fa:16:3e:b6:c6:fe |
>>> {"subnet_id": "5b53398a-70ce-44c6-8f6b-7a21a4ea48d7", "ip_address":
>>> "10.78.99.83"} |
>>> | 7894091c-274a-48dd-8348-b3fd449b6705 |      | fa:16:3e:bb:69:9e |
>>> {"subnet_id": "5b53398a-70ce-44c6-8f6b-7a21a4ea48d7", "ip_address":
>>> "10.78.99.85"} |
>>> | 9c99fe76-4d74-44de-a2f5-3f3dc555c3d8 |      | fa:16:3e:db:f6:6f |
>>> {"subnet_id": "5b53398a-70ce-44c6-8f6b-7a21a4ea48d7", "ip_address":
>>> "10.78.99.86"} |
>>> | badec4e8-fa4f-47e3-a7a2-123d84d03337 |      | fa:16:3e:79:01:50 |
>>> {"subnet_id": "5b53398a-70ce-44c6-8f6b-7a21a4ea48d7", "ip_address":
>>> "10.78.99.82"} |
>>> | cfb7d5ba-3603-4448-9140-8c1d10ca2b2f |      | fa:16:3e:a2:db:c4 |
>>> {"subnet_id": "5b53398a-70ce-44c6-8f6b-7a21a4ea48d7", "ip_address":
>>> "10.78.99.81"} |
>>>
>>> +--------------------------------------+------+-------------------+------------------------------------------------------------------------------------+
>>>
>>> root@osk-team:~# quantum port-show cfb7d5ba-3603-4448-9140-8c1d10ca2b2f
>>>
>>> +----------------------+------------------------------------------------------------------------------------+
>>> | Field                |
>>> Value
>>> |
>>>
>>> +----------------------+------------------------------------------------------------------------------------+
>>> | admin_state_up       |
>>> True
>>> |
>>> | binding:capabilities | {"port_filter":
>>> false}                                                             |
>>> | binding:vif_type     |
>>> ovs
>>> |
>>> | device_id            |
>>> fd907599-60a2-4efa-9c7e-65fb8c8b0f77
>>> |
>>> | device_owner         |
>>> network:router_interface
>>> |
>>> | fixed_ips            | {"subnet_id":
>>> "5b53398a-70ce-44c6-8f6b-7a21a4ea48d7", "ip_address": "10.78.99.81"} |
>>> | id                   |
>>> cfb7d5ba-3603-4448-9140-8c1d10ca2b2f
>>> |
>>> | mac_address          |
>>> fa:16:3e:a2:db:c4
>>> |
>>> | name
>>> |
>>> |
>>> | network_id           |
>>> 52df3dd6-76f6-4036-855d-7f81d2b440b9
>>> |
>>> | status               |
>>> DOWN
>>> |
>>> | tenant_id            |
>>> e6a025539f2f4823b9ae25d17096efc2
>>> |
>>> ==============================================
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Mailing list: https://launchpad.net/~openstack
>>> Post to     : openstack@xxxxxxxxxxxxxxxxxxx
>>> Unsubscribe : https://launchpad.net/~openstack
>>> More help   : https://help.launchpad.net/ListHelp
>>>
>>>
>>
>>
> _______________________________________________
> Mailing list: https://launchpad.net/~openstack
> Post to     : openstack@xxxxxxxxxxxxxxxxxxx
> Unsubscribe : https://launchpad.net/~openstack
> More help   : https://help.launchpad.net/ListHelp
>
>
> _______________________________________________
> Mailing list: https://launchpad.net/~openstack
> Post to     : openstack@xxxxxxxxxxxxxxxxxxx
> Unsubscribe : https://launchpad.net/~openstack
> More help   : https://help.launchpad.net/ListHelp
>
>