[Openstack] Question about Kilo Network Migration from nova-network to Neutron

German Anders ganders at despegar.com
Mon May 30 12:34:20 UTC 2016

Thanks a lot Tom, I'll take a deep look into these links.



2016-05-30 4:25 GMT-03:00 Tom Fifield <tom at openstack.org>:

> On 26/05/16 19:49, German Anders wrote:
>> Hi all,
>> We're in the middle of a transition from Icehouse release with a network
>> model using nova-network and a single VLAN to Kilo release. With Kilo we
>> would like to
>> use Neutron and multiple VXLAN tunnels, so I just wondering if someone
>> has pass throw a similar scenario and how do you resolved it?
>> Is better to have only one vRouter? or many? is there any known
>> limitations? We've almost 1000 physical servers and 5000 instances.
>> Another concern is how can we expose the new instances born inside of
>> this "tunnel" layer (Kilo release) to our existing non-VxLAN scenario
>> (Icehouse), we've many different types of applications like DBs, load
>> balancers, webservices, etc.
>> We would like to avoid the use of floating ip addresses assigned to
>> every instance and also avoid any SPoF and bottlenecks on the network
>> nodes.
>> Ideas? possible types of architectures to use here? Also Is neutron
>> stable at Kilo release or is better to go with another OpenStack release
>> that has Neutron more developed for production?
> If you can get to Juno, this script might work for you:
> https://github.com/NeCTAR-RC/novanet2neutron
> There's also this icehouse fork:
> https://github.com/kevinbringard/novanet2neutron/tree/icehouse
> You'll find friends who've done it before in the Large Deployments Team:
> https://wiki.openstack.org/wiki/Large_Deployment_Team
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