[Openstack] Network Service for L2/L3 Network Infrastructure blueprint

John Purrier john at openstack.org
Fri Jan 28 21:06:26 UTC 2011

You are correct, the networking service will be more complex than the volume
service. The existing blueprint is pretty comprehensive, not only
encompassing the functionality that exists in today's network service in
Nova, but also forward looking functionality around flexible
networking/openvswitch and layer 2 network bridging between cloud

This will be a longer term project and will serve as the bedrock for many
future OpenStack capabilities.


-----Original Message-----
From: openstack-bounces+john=openstack.org at lists.launchpad.net
[mailto:openstack-bounces+john=openstack.org at lists.launchpad.net] On Behalf
Of Thierry Carrez
Sent: Friday, January 28, 2011 1:52 PM
To: openstack at lists.launchpad.net
Subject: Re: [Openstack] Network Service for L2/L3 Network Infrastructure

John Purrier wrote:
> Here is the suggestion. It is clear from the response on the list that
refactoring Nova in the Cactus timeframe will be too risky, particularly as
we are focusing Cactus on Stability, Reliability, and Deployability (along
with a complete OpenStack API). For Cactus we should leave the network and
volume services alone in Nova to minimize destabilizing the code base. In
parallel, we can initiate the Network and Volume Service projects in
Launchpad and allow the teams that form around these efforts to move in
parallel, perhaps seeding their projects from the existing Nova code.
> Once we complete Cactus we can have discussions at the Diablo DS about
progress these efforts have made and how best to move forward with Nova
integration and determine release targets.

I agree that there is value in starting the proof-of-concept work around
the network services, without sacrificing too many developers to it, so
that a good plan can be presented and discussed at the Diablo Summit.

If volume sounds relatively simple to me, network sounds significantly
more complex (just looking at the code ,network manager code is
currently used both by nova-compute and nova-network to modify the local
networking stack, so it's more than just handing out IP addresses
through an API).


Thierry Carrez (ttx)
Release Manager, OpenStack

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