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From "Toshiaki Hatano" <toshiaki.hat...@verio.net>
Subject RE: [DISCUSS] Linux native VXLAN support on KVM hypervisor
Date Fri, 03 May 2013 21:49:34 GMT
Thank you all for your comment and approval!

I agree with Justin's proposal.
And yesterday, Open vSwitch released v1.10.0 with VXLAN support.
http://openvswitch.org/pipermail/announce/2013-May/000052.html


I've created Jira ticket and start writing design doc.
https://issues.apache.org/jira/browse/CLOUDSTACK-2328

Once I've done design doc, I'll submit it to dev list.

Sincerely,
--
Toshiaki

> -----Original Message-----
> From: Justin Grudzien [mailto:grudzien@gmail.com]
> Sent: Thursday, May 02, 2013 5:35 PM
> To: dev@cloudstack.apache.org
> Cc: dev@cloudstack.apache.org
> Subject: Re: [DISCUSS] Linux native VXLAN support on KVM hypervisor
> 
> I will +1 this. I spoke with Cisco a few weeks ago and they certainly see
> VXLANS as being the future for cloud infrastructures. In addition to Linux
> support we should look at the Cisco 1000v and open vSwitch support a well.
> Cisco said they already have VMWare support today on the 1000v with KVM
> coming soon.
> 
> Justin
> 
> Sent from my iPhone
> 
> On May 2, 2013, at 3:31 PM, Chip Childers <chip.childers@sungard.com> wrote:
> 
> > On Wed, May 01, 2013 at 04:58:12PM -0400, Toshiaki Hatano wrote:
> >> Hi all,
> >>
> >> I’d like to add Linux native VXLAN support on KVM hypervisor.
> >>
> >> Currently, advanced zone with VLAN isolation can hold only 4k networks
> (= accounts) in a zone due to the VLAN ID limitation.
> >> 4k accounts per zone is not enough for IaaS provider like us.
> >> Furthermore, VPC will allow single account to consume multiple networks.
> >>
> >> Linux kernel 3.7 or later supports VXLAN as part of its ordinal networking
> function.
> >> VXLAN enable Layer 2 tunneling over UDP/IP with VLAN-like encapsulation
> and allow 16M isolated networks in the domain.
> >> So, by using linux native VXLAN support, we can extend network limits
> without introducing unnecessary complexity.
> >> (But in other words, it’s not as flexible as Open vSwitch. Only thing
> >> Linux native VXLAN provides is multipoint L2 tunneling.)
> >>
> >> Any thoughts about this?
> >>
> >>
> >> P.S.
> >>
> >> I’m currently working on this as my internship project.
> >> As proof of concept, I’ve modified “modifyvlan.sh” script which is actual
> VLAN create/delete manipulation script called from cloud-agent, to create
> and to use VXLAN interface instead of VLAN interface.
> >> Modified script is tested with CloudStack 4.0.1 and 3 KVM hypervisors
> based on CentOS 6.4 + 3.8.6 kernel.
> >> And it looks working. (But I’m still testing)
> >>
> >>
> >> P.S.2.
> >>
> >> FYI: OpenStack already started process [1] to support Linux native VXLAN.
> >> [1] https://review.openstack.org/#/c/26516/
> >>
> >>
> >> Best Regards,
> >> --
> >> Toshiaki Hatano
> >
> > I note that no one has replied to this thread yet, but I'll give you
> > my general +1 on the idea.
> >
> > Can some of the network-centric folks on the dev list please speak up
> > on the proposal?
> >
> > -chip


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