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Hi,

I edited the ml2_conf.ini with the necessary VXLAN configs. I can now create and edit networks and start VMs, but
the VMs don’t receive dhcp responses. The DHCP-Agent is running on the network node, but there is nothing in the logs that would help.



Am 31.05.2014 um 04:08 schrieb Martinx - ジェームズ <thiagocmartinsc at gmail.com>:

> AFAIK:
> 
> * Havana = ovs_neutron_plugin.ini
> 
> * IceHouse = ml2_conf.ini
> 
> Both looks for an [ovs] section...
> 
> 
> On 30 May 2014 17:45, Sebastian Herzberg <sebastian.herzberg at gmail.com> wrote:
> Hi,
> 
> would you mind sharing your relevant parts of the configs?
> It is very confusing because there are not a lot of VXLAN guides out there.
> Some edit the ovs_neutron_plugin.ini and some just have a [ovs] section in the ml2_conf.ini.
> What is the right way here?
> 
> Thanks
> Sebastian
> 
> 
> Am 28.05.2014 um 07:41 schrieb Benedikt Trefzer <benedikt.trefzer at cirrax.com>:
> 
>> Hi Kim
>> 
>> I just did the same switching from gre to vxlan.
>> Here's what I learned:
>> 
>> You have to delete all the old networks in the installation that where
>> created with gre. They do not work because the tunnel type is stored in
>> the DB. I was not able to change it.
>> 
>> According to ovs-neutron_plugin.ini. I think this depends on the
>> distribution used. I realized, that not all daemons read the same config
>> files on startup. Thats why I had also to modify both mentioned files.
>> To ensure all parameteters are set, I used debug=True and verbose=True
>> like this you see the configuration the daemon uses in the logfile.
>> 
>> hope this helps
>> 
>> Benedikt
>> 
>> 
>> On 28.05.2014 04:32, BYEONG-GI KIM wrote:
>>> Hello.
>>> 
>>> I followed the installation guide for OpenStack Icehouse, and the
>>> installation was completed successfully; Two Instances could ping with
>>> each other through GRE unnel.
>>> 
>>> After that, I've tried to modify the Networking from GRE to VXLAN by
>>> following the Configuration Reference
>>> described http://docs.openstack.org/trunk/config-reference/content/networking-plugin-ml2_vxlan.html
>>> 
>>> Although I modified all the parameters like "type_drivers",
>>> "tenant_network_types", "vni_ranges", etc. and restart all the related
>>> services on the every nodes, the VXLAN network doesn't work fine at all.
>>> First, I could not add an additional network on dashboard. Second, the
>>> br-tun on both Compute Node and Network Node did not have a port for VXLAN. 
>>> 
>>> I read the configuration guide
>>> at http://kimizhang.wordpress.com/2014/04/01/how-ml2vxlan-works/, and
>>> the guide describes
>>> /etc/neutron/plugins/openvswitch/ovs-neutron_plugin.ini also needs to be
>>> modified. But I didn't because the Installation Guide for OpenStack
>>> Icehouse didn't mention such things even though the guides shows how to
>>> set up the GRE as default. 
>>> 
>>> Should I modify
>>> /etc/neutron/plugins/openvswitch/ovs-neutron_plugin.ini? Or what I need
>>> to do?
>>> 
>>> Best regards
>>> 
>>> Byeong-Gi KIM
>>> 
>>> 
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>> 
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> 
> 
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