[AusNOG] Virtualization Technology

Tue May 20 12:12:02 EST 2014

VMWare teaming/bonding (depending on which OS world you tend to live in)
definitely does do active-active.

In fact, VMWare always does active-active even if there's no actual link
aggregation going on. VMWare's bog-standard vSwitch uses split horizon
routing by default, with traffic routed out on active links based on
specified criteria.

LACP isn't supported without either the Nexus 1000v vSwitch or the ESXi
5.5 Distributed vSwitch, but static link aggregation works all the way
back to ESXi 3.5 without an issue.

On 20/05/14 12:01, Sam Wilson wrote:
> I'll bite, as the sys admin in the room I am particularly interested
> in what the discussion points were. For example I'll be the first to
> admit KVM and Xen bridged mode can quickly become painful with LACP,
> VLAN's and Bridging all needing their on config. On the other hand the
> VMWare teaming has never been a highlight for me (No active-active?).
>
> I wonder if this is more a question of "which vswitch / SDN" versus
> "which hypervisor"
>
> Cheers,
>
> Sam
>
>
> On Mon, May 19, 2014 at 11:00 PM, Jacob Gardiner
> <jacob at jacobgardiner.com <mailto:jacob at jacobgardiner.com>> wrote:
>
>     I think the important thing you need to consider when having these
>     discussions is the end result, what exactly are you looking for
>     when you're deciding what tech to use?
>
>     If you're looking for short-life VMs to run tests and then have
>     them quickly deleted when their lifespan is over? Maybe you should
>     consider container based virtualisation (openvz or docker esq). 
>     Are you after complete orchestration with things like HA or FT out
>     of the box? Then maybe something like VMWare's vcenter that
>     manages your storage in addition to scheduling is what you're after. 
>     Is performance important? Then consider paravirtual guests over a
>     fully emulated guest. (down the Xen or KVM path)
>
>     There's plenty of orchestration pieces out there too and they can
>     vary quite dramatically in cost, A cost which you might quickly
>     sink into man hours if you don't think about management as well as
>     functionality. 
>
>     There's no right or wrong answer, I've used them all in different
>     situations.
>
>
>     On 19 May 2014 12:14, ANSA SERVERS <info at ausnetservers.net.au
>     <mailto:info at ausnetservers.net.au>> wrote:
>
>         I am having a "discussion" with my network engineer and want
>         to know what virtualization platforms people use, has used and
>         like. For example we use OpenVZ / XEN because its stood the
>         test of time and works flawlessly but has used VMWARE and
>         HyperV. My engineer thinks that XEN / OPENVZ is not proper
>         hosting technology
>
>          
>
>         Your *constructive* thoughts / opinions?
>
>          
>
>         Regards,
>
>          
>
>         *Matthew Matters  *Managing Director / CEO of Aus Net Servers
>         Australia Pty Ltd
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>
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>     -- 
>     Jacob Gardiner
>     @jacobgardiner <http://twitter.com/jacobgardiner>
>
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