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Hi George,

in the guide you are using nova-network service is deployed on the 
compute node, so you need br100 only on it (and every compute node)
so forget what i wrote about controller and compute
as a guide to setup br100 try this link 
(http://docs.openstack.org/grizzly/openstack-compute/install/yum/content/compute-configuring-guest-network.html) 

but be careful with the interface you use, in your case (as described in 
the guide you follow) eth1 is the right one

for the deployment i would suggest you try using a deployment tool like 
RDO, following the guide found under the link below
   http://openstack.redhat.com/Quickstart
then there are configuration option on setting all-in-one or multi-node 
deployments
as well as using neutron or nova-network or adding compute nodes

for the networking part i suggest try using neutron, but this might not 
be an easy solution as you will need to study and understand some things 
about it.

in any case, keep updating and i will help
Thanassis

Thanassis Parathyras
StackMasters - The European OpenStack Integration Company
www.stackmasters.eu

On 9/1/2014 12:11 μμ, Georgios Dimitrakakis wrote:
> Hello again!
>
> No the br100 was not created automatically unfortunately! There is 
> also this bug report: 
> https://bugs.launchpad.net/openstack-manuals/+bug/1241331
>
> Since it wasn't created automatically I am asking if it has to be on 
> both nodes (controller + compute) in order for the network to work 
> correctly? Furthermore, I would like to know how should it be bridged 
> in order to achieve floating (public) IPs?
>
> If it's easier for you or there is a guide that you can point me to I 
> would be happy to try with neutron instead of nova-network.
>
> Best,
>
> G.
>
> On Thu, 09 Jan 2014 11:54:18 +0200, Thanassis Parathyras wrote:
>> Hi George,
>>
>> Personally i have not dealt with this setup, but i can follow and
>> assist you further.
>> According to the related bug report
>> (https://bugs.launchpad.net/ubuntu/+bug/1243588)
>> "br100 is automatically set up by nova-network, you do not need to
>> manually create it"
>> is that the case on your setup?
>>
>> Best,
>> Thanassis
>>
>> Thanassis Parathyras
>> StackMasters - The European OpenStack Integration Company
>> www.stackmasters.eu
>>
>> On 9/1/2014 3:15 πμ, Georgios Dimitrakakis wrote:
>>> Dear Thanassi,
>>>
>>> thank you very much for your interest! First of all let me inform 
>>> you that you are right and I am going with the first (a) approach 
>>> (nova-network).
>>> The guide I was following and the place on which the specific 
>>> problem arises is this one: 
>>> http://docs.openstack.org/havana/install-guide/install/yum/content/nova-network.html
>>>
>>> As you can see by yourself many people on the comment session below 
>>> are trying to understand how to move on with the br100 interface.
>>>
>>> In my case the interface wasn't created automatically (although in a 
>>> previous bug that I 've found the say that this was fixed but 
>>> apparently it hasn't been in my case). So I 've tried to move on and 
>>> created the br100 on the compute node without success. If I 
>>> understand correctly, according to your suggestion the br100 has to 
>>> exist on the controller node as well. Am I right? Should I create 
>>> the br100 on both nodes?? Do you have any further suggestions on how 
>>> to assign floating (public) IPs to the VMs? Currently I am having 
>>> two nodes (controller + compute) with two NIC interfaces each! One 
>>> of them is used in order to connect directly each to node to the 
>>> other, while the other is used to connect to the public LAN with a 
>>> static IP. Any help and configuration schema much appreciated!
>>>
>>> All the best,
>>>
>>> G.
>>>
>>> On Tue, 07 Jan 2014 11:06:42 +0200, Thanassis Parathyras wrote:
>>>> Hi George,
>>>>
>>>> It would be a pleasure to help you on this, do you still have
>>>> problems with the deployment?
>>>> In OpenStack there are two types of networking that can be used
>>>> a)nova-network and b)neutron.
>>>> Given your specified question i assume you are going with option a),
>>>> then in that case the br100 bridge should be present (manually created
>>>> - if you follow a manual deployment) on the controller node.
>>>> May be you can provide the link of the guide you are following so
>>>> that we check if there is a need for correction on this.
>>>> One more thing, since you are using Centos you can consider using
>>>> RedHat RDO ( http://openstack.redhat.com ) for the deployment.
>>>>
>>>> Feel free to contact me with regard to any issues you have.
>>>> Best regards,
>>>> Thanassis
>>>>
>>>> Thanassis Parathyras
>>>> Virtual Trip Ltd.
>>>>
>>>> e aparathyras at vtrip.net
>>>> w www.vtrip.net
>>>> t +30 2106756112
>>>> f +30 2106756527
>>>> skype-id: aparathyras
>>>>
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>>>> On 27/12/2013 8:12 μμ, Georgios Dimitrakakis wrote:
>>>>> Hi people!
>>>>>
>>>>> I am following the exact steps of the "Openstack Installation 
>>>>> Guide" for Havana on a CentOS 6.5
>>>>>
>>>>> The problem is that when I try create the network on the 
>>>>> controller node using this :
>>>>>
>>>>> nova --debug network-create vmnet --fixed-range-v4=x.x.x.x/32 
>>>>> --bridge-interface=br100 --multi-host=T
>>>>>
>>>>> I get an error that the br100 interface cannot be found.
>>>>>
>>>>> So, my question is the following: should this interface appear on 
>>>>> the controller node , on the compute node or on both nodes?
>>>>>
>>>>> What do I have to do to set it up properly since it doesn't appear 
>>>>> on any of them??
>>>>>
>>>>> I have found this bug for CentOS 6.4 and I am not sure that has 
>>>>> been corrected for 6.5.
>>>>>
>>>>>
>>>>> Could someone help me a bit with this??
>>>>>
>>>>>
>>>>> Best,
>>>>>
>>>>> G.
>>>>>
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>>>>>
>>>
>