As promised (I know, late) here are my thoughts on the topic.
It all started when Brian posted on twitter that he was testing RemoteFX with Gabe and I replied saying they should test it with loss. He replied pretty much implying ‘are you nuts? MS is saying RemoteFX is LAN only’ to what I replied ‘WAN is the new LAN so you should test it with loss’.
The reason I mentioned RemoteFX is simple and we must go back a couple years (maybe a decade) to understand what I mean and why I do think ‘LAN only protocols for VDI are Dead on Arrival’.
If you remember (and I clear remember this, back in 2003/2004 when I was working in Japan, accessing my machine over a dial-up connection) years ago all many people had was a dial-up connection to the internet. Things were ‘slow’ at the time and everyone wished they had a much faster connection one day. The idea of having a 1MBit connection, only for you and at home or in a hotel was simply a dream. Everyone though when that day came, all our needs would be solved.
So fast forward a couple years and now, if you are cheap, you are probably using some ‘high-speed lite’ plan from your ISP that is almost certain, at least 1Mbit down/256kbps up. Considering all you had years ago, this should be great, more than you need.
As we both know, this is not the case. Your 1MBit connection is slow. Freaking slow. How come? Well as we can easily see, with more available bandwidth comes all sorts of new technologies like movie streaming, P2P file sharing, rich multimedia experience (from websites, from VDI hosted desktops and so on), etc. The list goes on.
That shows us clearly, no matter how much bandwidth you get in the next couple years, technology will find a way to use it. Either because you will be downloading BluRay2 movies (at 500GB each) or because you need your USB 4.0 WebCam running at 3840×2160 resolution, when connected to your XenDesktop 7.0 hosted desktop (running Windows 9 with 64GB RAM and 32 vCPUs – note it will still boot Office 2015 as fast as a Windows 98 with Office 97 – see Claudio’s Law).
And as we get more and more connected I can only see ‘remote’ workers growing. People that want to work from home, from anywhere and also companies that will start to reduce their office space (that is costly if you do not realize) by giving users what they need at home or anywhere they decide to work from.
That leads us to what I posted on Twitter. The WAN will become the new LAN.
If that is the case if more and more work is shifted to the outside (your home, your cottage, a hotel, etc) are LAN only protocols for SBC/VDI dead?
I do understand that as of today the ratio of users working in a LAN connected desktop and on a WAN connected one is probably 20:1 if not more. But again, is this what the future holds? Will we ever see a shift on this that may bring this down to 2:1 maybe? And if that happens, what future a LAN only protocol has? Type-1/Type-2 hypervisor solutions may alleviate this but again, there may be cases where I do want to work ‘connected’ to my hosted desktop and not from a locally cached copy (i.e. what if I can assign 64GB RAM/32vCPUs to my hosted one instead of using 8GB/2vCPUs for my locally cached one? It will for sure be MUCH faster for several tasks and a reason for me not to use the cached one).
My take on this is, for now, RemoteFX and any other LAN only solutions will do it and will of course help the adoption of a VDI model on the LAN. But as we shift towards an always connected model, if anyone tries to sell their stuff as ‘Good on LAN only’, that will become an issue.
So Microsoft and Citrix, make sure you keep in mind WAN is the new LAN and that whatever crap you develop or acquire in the future has a future on the WAN.
WAN is king.
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