Re: [openstack-dev] Merge multiple OVS bridges ?

2013-10-22 Thread Kyle Mestery (kmestery)

On Oct 22, 2013, at 2:21 AM, Gopi Krishna B  wrote:

> Hi
> Currently in Neutron the integration bridge (br-int) and other bridges 
> configured over each physical nic (e.g. br-eth0, br-eth1 etc) are being 
> configured in Compute and Network nodes. What is the logic behind or 
> advantages having 2 OVS bridges in the physical host?
> Can we have only one bridge for each physical NIC, similar to what linux 
> bridge setup has. And configure/modify the flows such that VLAN conversion is 
> appropriately setup for ingress and egress traffic within the single bridge.
> Thus also eliminating the veth pairs used to connect the bridges together.
> Is this a feasible proposal, and can it be worked on?
> 
Sure, please file a blueprint and submit a patch for this, I would review this 
for sure! :)

There are optimizations underway around this area. For example, we're looking 
at possibly collapsing the individual Linuxbridge and OVS agents into a single 
agent. In the context of ML2, this makes sense. I've thought a bit about 
collapsing the bridges from two to one and this is something which seems quite 
doable frankly.

Thanks,
Kyle


> -- 
> Regards
> Gopi Krishna
> 
> 
> 
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Re: [openstack-dev] Merge multiple OVS bridges ?

2013-10-22 Thread Gopi Krishna B
Are the below observations on Havana?

My observations are w.r.t. Grizzly, but I didnot see any changes in Havana
reg. the same.
-- 
Regards
Gopi Krishna
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Re: [openstack-dev] Merge multiple OVS bridges ?

2013-10-22 Thread P Balaji-B37839
Are the below observations on Havana?

From: Gopi Krishna B [mailto:gopi97...@gmail.com]
Sent: Tuesday, October 22, 2013 12:52 PM
To: openstack-dev@lists.openstack.org
Subject: [openstack-dev] Merge multiple OVS bridges ?


Hi
Currently in Neutron the integration bridge (br-int) and other bridges 
configured over each physical nic (e.g. br-eth0, br-eth1 etc) are being 
configured in Compute and Network nodes. What is the logic behind or advantages 
having 2 OVS bridges in the physical host?

Can we have only one bridge for each physical NIC, similar to what linux bridge 
setup has. And configure/modify the flows such that VLAN conversion is 
appropriately setup for ingress and egress traffic within the single bridge.
Thus also eliminating the veth pairs used to connect the bridges together.
Is this a feasible proposal, and can it be worked on?

--
Regards
Gopi Krishna


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