So who are the big SD-WAN players out there? On Mon, Apr 17, 2017 at 10:31 AM, Doug Marschke <doug@sdnessentials.com> wrote:
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 CTO www.sdnessentials.com JNCIE-SP #41, JNCIE-ENT #3 415-902-5702 (cell) 415-340-3112 (office)
-----Original Message----- From: NANOG [mailto:nanog-bounces@nanog.org] On Behalf Of Kasper Adel Sent: Sunday, April 16, 2017 1:14 PM To: NANOG list <nanog@nanog.org> 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