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From "Toshiaki Hatano" <toshiaki.hat...@verio.net>
Subject [PROPOSAL] [CLOUDSTACK-2328] Linux native VXLAN support on KVM hypervisor
Date Fri, 17 May 2013 23:49:22 GMT
Hi all,

I've done initial draft of FS.
https://cwiki.apache.org/confluence/display/CLOUDSTACK/Feature+Proposal+-+Linux+native+VXLAN+support+on+KVM+hypervisor

Please review it and provide your comment and feedback.
And let me know if there're something unclear or missing, I'll update as soon as possible.

I'd like to assign Jira ticket to me but it looks I don't have permission to do so.
https://issues.apache.org/jira/browse/CLOUDSTACK-2328
Could anyone kindly assign the ticket to me?

Thanks,
--
Toshiaki

> -----Original Message-----
> From: Toshiaki Hatano [mailto:toshiaki.hatano@verio.net]
> Sent: Friday, May 03, 2013 3:50 PM
> To: dev@cloudstack.apache.org; users@cloudstack.apache.org
> Subject: RE: [DISCUSS] Linux native VXLAN support on KVM hypervisor
> 
> 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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