SD-WAN for enlightened

Colton Conor colton.conor at
Fri Apr 28 01:25:57 UTC 2017

So who are the big SD-WAN players out there?

On Mon, Apr 17, 2017 at 10:31 AM, Doug Marschke <doug at>

> Hello Kasper,
> I will do my best to answer your SD-WAN question, but as you mentioned it
> is a buzzword that has a bit of confusion in its definitions.  I would say
> that a SD-WAN solution should have the following elements:
> 1.) Ability to manage multiple WAN connection and choose the path based on
> user and machine criteria (The Hybrid WAN)
> 2.) A controller to manage the polices and operations of the SD-WAN devices
> 3.) Analytics on the network and application level
> 4.) A software overlay that abstracts and secures the underlying networks
> Currently there are a lot of solutions out there by many vendors.  Some do
> all of these and some a subset, so it make the landscape a bit confusing.
>  Lots of times vendors use SD-WAN when they are really just talking about
> Hybrid WAN (multiple connections) or WAN optimization.
> Doug Marschke
> 415-902-5702 (cell)
> 415-340-3112 (office)
> -----Original Message-----
> From: NANOG [mailto:nanog-bounces at] On Behalf Of Kasper Adel
> Sent: Sunday, April 16, 2017 1:14 PM
> To: NANOG list <nanog at>
> Subject: SD-WAN for enlightened
> Hi,
> I'm not sure if the buzzword SD-WAN is used to compensate for another
> buzzword that got over-utilized (SDN) or it is a true 'new and improved'
> way of doing things that has some innovation into it.
> I heard different explanation from different vendors:
> 1) appliances (+ controller) placed in-line to put traffic in tunnels
> based on policy, with some DPI and traffic tagging...(to do
> performance/policy based routing) over an expensive link (MPLS) and a cheap
> one (broadband) with some 'firewall-like' filtering capabilities.
> 2) same as above, with a flavor of 'machine learning' to find a pattern
> for traffic to optimize utilization.
> 3) a controller that instantiates and tears down tunnels from 'classic
> routers' based on external policies and Network based features to do
> performance based routing over an expensive link (MPLS) and a cheap one
> (broadband) with encryption.
> Is the above a decent high-level summary?
> Has anyone tried any of these solutions, any general feedback ?
> Cheers,
> Kim

More information about the NANOG mailing list