Open Stack

Hi Venkay,
I was already following the user-guide.
I've added my comments in line.

Thank you.
Silvia

2015-06-16 21:29 GMT+02:00 Venkatrangan G - ERS, HCL Tech <
venkatrangang at hcl.com>:

>  Hi Silvia,
>
>    Please find the responses to your queries inline.
>
>    Please let us know in case of any further queries
>
>
>
> Please check for all the sections I the user-guide for openstack:
> https://wiki.opendaylight.org/view/Release/Helium/VTN/User_Guide/OpenStack_Support
>
> (especially all the tips and  please ensure if all the settings are done
> in your environment)
>
>
>
>
>
> Regards,
>
> Venkat G
>
>
>
>
>
> *From:* vtn-dev-bounces at lists.opendaylight.org [mailto:
> vtn-dev-bounces at lists.opendaylight.org] *On Behalf Of *Silvia Fichera
> *Sent:* 16 June 2015 07:46
> *To:* vtn-dev at lists.opendaylight.org; openstack at lists.openstack.org
> *Subject:* [vtn-dev] Some doubts about VTN and Openstack - after stack
>
>
>
> Hi all,
>
> I have installed devstack with ODL support.
>
> Notwithstanding the successful stack operation, there is still something
> than does not convince me.
>
> I'm considering all the interfaces eth0 part of the management network.
>
> All the machines have an eth0 inteface.
>
> The interfaces eth1 are part of the data network and are connected to an
> OVS.
>
>
>
> So, I have:
>
> ODL eth0 10.30.3.234 connected to the OVS eth0
>
> OpenSTack Controller eth0 10.30.3.231 eth1 10.0.0.1
>
> Compute host 1 eth0 10.30.3.232 eth1 10.0.0.2
>
> Compute host 1 eth0 10.30.3.233 eth1 10.0.0.3
>
>
>
> <Response>
>
> These configurations seem correct, But Are all the eth1 connected to the
> same virtual switch so that they form a topology?
>
>
>
> Controller eth1----------virtual s/w------------------host 1 eth1
>
>                                                       |
>
>                                                       |
>
>
>
>                                                    Host2 eth1
>
> Yes, all the eth1 are connected to the same switch and they can ping each
other.

>
>
> Assuming you are using Vsphere? Or if any other, they must be connected to
> the same network.
>
I have several VMs in the same host creted with Esxi. Also the OVS is
inside a VM.

>
>
> My questions are:
>
>
>
> 1.      The IP address to consider in local.conf is the management IF IP?
>
> <resp>
>
>      Yes, this is correct, because the other ip address will be non
> reachable once OVS is started and the interface is added as port.
>
[?]

>
>
> 2.      Why when I stack the controller node it works also as compute
> host? In fact if I launch an instance it is also located in this node. How
> to make it performs only as controller node?
>
> <resp>
>
>        Please add more RAM and number of CPU’s to the compute hosts so
> that the openstack chooses to create the VM there.
>
>  Ok, I will ask to who has the host access to modify RAM and CPU
>
> 3.      After the creation of an instance that is located in a compute
> host that is not the controller Openstack, this instance has no IP address
> assgned, so I can't ping another instance in the same compute node. Why?
>
> <resp>
>
>      As mentioned above, When opennstack starts OVS switch with openflow
> settings is started in all the nodes
>
>
>
>   So, if you check sudo ovs-vsctl show in all the nodes You should ensure
> that br-int got created and the ODL IP address is added as both openflow
> Manager as well as Openflow controller to the switch br-int
>
> The Manager can be identified in the port 6640 and the controller in port
> 6633, so typicall you should see that ODL IP address is listed as both
> Manager and Controller.
>
> br-int has been created and the controller is connected.
>
> If you have the right configuration, You should see three connected
>  openflow switches in dlux GUI. Only if  all these are fine, Is that fine,
> Do you have three switches connected?, or three switches with broken links?
>
> Also, if compute ode OVS versio is higher, you may have the problem where
> you have to install a default flow to forward to controller. So, Please
> check the same.
>


>
>
> Please refer:
> https://wiki.opendaylight.org/view/Release/Helium/VTN/User_Guide/OpenStack_Support#Some_Tips
>
>
>
In dlux GUI I see 9 switch without links. It's included the OVS switch who
is part of the data network.
I still cannot ping the instances creted in Openstack, and, again, except
in the compute node that is also the Controller openstack, there is no ip
address associated when I do ifconfig.

>   Moreover if I check the topology on dlux I can see only the instances
> launched in the controller node. But I think it's a consequence of the
> previous problem.
>
> 4. In the basic configuration of local.conf we also define the range of
> floating IPs. Is possible to do it also in this kind of configuration? If
> not, how to assign floating IP to the instances? The traffic that I will
> generate, will be route through the OVS that is part of the data network,
> right?
>
>
>
> <resp>
>
> Yes, You can add that configuration,But  we don’t have the  test results
> with that setting. It should work.
>
>
>
> Thank you for your support and clarification. If you need more details
> just ask.
>
>
>
> Silvia
>
> --
>
> Silvia Fichera
>
>
>
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-- 
Silvia Fichera
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