[Openstack] Can I create a VM with 2 NICs while there is only one network?
Liu Wenmao
marvelliu at gmail.com
Thu May 30 05:56:40 UTC 2013
Hi Salvatore:
Thanks, I will try that.
Liu Wenmao
On Wed, May 29, 2013 at 6:07 PM, Salvatore Orlando <sorlando at nicira.com>wrote:
> I am afraid there is no way of having two NICs on the same network at the
> moment.
>
> If you are trying to deploy a VM which provides some form of network
> service, like packet filtering, you might think about implementing it as a
> quantum service plugin.
> The 'agent' for this plugin would plug two tap interfaces connected to the
> same network, and do the processing as you suggest.
>
> Clearly, this is not very easy, as it would require you to implement a
> plugin, possibly an API for it, as well as an agent which uses Quantum
> library functions for plugging/unplugging interfaces.
> The agent will also have the responsibility for starting/stopping the
> service you're providing.
>
> Salvatore
>
>
> On 28 May 2013 07:34, Liu Wenmao <marvelliu at gmail.com> wrote:
>
>> Thanks Salvatore
>>
>> I can create two ports with admin-state down, which are in the same
>> network, but nova says that the two NICs of the VM can not be in the same
>> network.
>>
>> Actually I want to redirect all the packets of the network to VM eth0,
>> after some processes the VM sends the packets out to eth1, so the two NICs
>> should be in the same network. Is it possible?
>>
>>
>> root at node1:/usr/src/python-quantumclient# quantum port-create
>> --admin-state-down net1
>> Created a new port:
>>
>> +----------------------+-----------------------------------------------------------------------------------+
>> | Field | Value
>> |
>>
>> +----------------------+-----------------------------------------------------------------------------------+
>> | admin_state_up | False
>> |
>> | binding:capabilities | {"port_filter": false}
>> |
>> | binding:vif_type | ovs
>> |
>> | device_id |
>> |
>> | device_owner |
>> |
>> | fixed_ips | {"subnet_id":
>> "c11eaa0d-3aff-41a8-909a-1dfdfdf20f48", "ip_address": "100.0.0.12"} |
>> | id | ca48bce7-7e42-4263-8832-cffb6e99ac0a
>> |
>> | mac_address | fa:16:3e:0e:08:e1
>> |
>> | name |
>> |
>> | network_id | 17d31ea4-4473-4da0-9493-9a04fa5aff33
>> |
>> | status | DOWN
>> |
>> | tenant_id | 53707d290204404dbff625378969c25c
>> |
>>
>> +----------------------+-----------------------------------------------------------------------------------+
>> root at node1:/usr/src/python-quantumclient# quantum port-create
>> --admin-state-down net1
>> Created a new port:
>>
>> +----------------------+-----------------------------------------------------------------------------------+
>> | Field | Value
>> |
>>
>> +----------------------+-----------------------------------------------------------------------------------+
>> | admin_state_up | False
>> |
>> | binding:capabilities | {"port_filter": false}
>> |
>> | binding:vif_type | ovs
>> |
>> | device_id |
>> |
>> | device_owner |
>> |
>> | fixed_ips | {"subnet_id":
>> "c11eaa0d-3aff-41a8-909a-1dfdfdf20f48", "ip_address": "100.0.0.13"} |
>> | id | 8a320aae-4a16-4a78-acba-1ec505cfe914
>> |
>> | mac_address | fa:16:3e:db:c5:15
>> |
>> | name |
>> |
>> | network_id | 17d31ea4-4473-4da0-9493-9a04fa5aff33
>> |
>> | status | DOWN
>> |
>> | tenant_id | 53707d290204404dbff625378969c25c
>> |
>>
>> +----------------------+-----------------------------------------------------------------------------------+
>>
>> root at node1:/usr/src/python-quantumclient# nova boot --image cirros
>> --flavor m1.tiny --nic port-id=ca48bce7-7e42-4263-8832-cffb6e99ac0a --nic
>> port-id=8a320aae-4a16-4a78-acba-1ec505cfe914 testips
>> ERROR: The server has either erred or is incapable of performing the
>> requested operation. (HTTP 500) (Request-ID:
>> req-ac85648c-4e9b-4624-bf88-a6ceeb8e79aa)
>>
>> nova-api.log:
>> 3028 2013-05-28 11:50:06.007 3232 TRACE nova.api.openstack File
>> "/usr/lib/python2.7/contextlib.py", line 24, in __exit__
>> 3029 2013-05-28 11:50:06.007 3232 TRACE nova.api.openstack
>> self.gen.next()
>> 3030 2013-05-28 11:50:06.007 3232 TRACE nova.api.openstack File
>> "/usr/local/lib/python2.7/dist-packages/nova-2013.1-py2.7.egg/nova/compute/api.py",
>> line 522, in _validate_and_provision_instance
>> 3031 2013-05-28 11:50:06.007 3232 TRACE nova.api.openstack
>> self._check_requested_networks(context, requested_networks)
>> 3032 2013-05-28 11:50:06.007 3232 TRACE nova.api.openstack File
>> "/usr/local/lib/python2.7/dist-packages/nova-2013.1-py2.7.egg/nova/compute/api.py",
>> line 358, in _check_requested_networks
>> 3033 2013-05-28 11:50:06.007 3232 TRACE nova.api.openstack
>> self.network_api.validate_networks(context, requested_networks)
>> 3034 2013-05-28 11:50:06.007 3232 TRACE nova.api.openstack File
>> "/usr/local/lib/python2.7/dist-packages/nova-2013.1-py2.7.egg/nova/network/quantumv2/api.py",
>> line 454, in validate_networks
>> 3035 2013-05-28 11:50:06.007 3232 TRACE nova.api.openstack raise
>> exception.NetworkDuplicated(network_id=net_id)
>> 3036 2013-05-28 11:50:06.007 3232 TRACE nova.api.openstack
>> NetworkDuplicated: Network 17d31ea4-4473-4da0-9493-9a04fa5aff33 is
>> duplicated.
>> 3037 2013-05-28 11:50:06.007 3232 TRACE nova.api.openstack
>>
>>
>> On Sat, May 25, 2013 at 5:33 AM, Salvatore Orlando <sorlando at nicira.com>wrote:
>>
>>> Nova does not have an option for creating 'unbound NICs', which would be
>>> tantamount to unplugged network cards, if this is what you want to achieve.
>>>
>>> Using Quantum you can create a few ports on some network, set these
>>> ports administratively down, and boot the VM with this ports (--nic
>>> port-id).
>>> Even if Quantum does not allow you to move these ports to another
>>> network perhaps it might still satisfy your requirements.
>>>
>>> Salvatore
>>>
>>>
>>>
>>> On 24 May 2013 04:23, Istimsak Abdulbasir <saqman2060 at gmail.com> wrote:
>>>
>>>> Are you saying the the VM sees two virtual NICs or two physical NICs?
>>>>
>>>> Istimsak Abdulbasir
>>>>
>>>> "change is good"
>>>>
>>>>
>>>> On Thu, May 23, 2013 at 11:18 PM, Liu Wenmao <marvelliu at gmail.com>wrote:
>>>>
>>>>> Hello:
>>>>>
>>>>> I have a network with a subnet, I want create a VM with one NIC
>>>>> connected with this subnet, with one or two extra NIC left, because I want
>>>>> to do some more things such as intrusion protection
>>>>>
>>>>> I wonder is it possible to create a VM with more NICs than its
>>>>> connected network?
>>>>>
>>>>> _______________________________________________
>>>>> Mailing list: https://launchpad.net/~openstack
>>>>> Post to : openstack at lists.launchpad.net
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>>>>> More help : https://help.launchpad.net/ListHelp
>>>>>
>>>>>
>>>>
>>>> _______________________________________________
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>>>>
>>>>
>>>
>>
>
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