Through this (probably far too long) series on SDNs, we have looked at BGP, Fibbing, and Openflow. BGP and Fibbing would be described as augmented control planes; the distributed control plane is not replaced, but rather augmented with a controller that modifies the best path decisions of the control plane by interacting with the control itself in a somewhat “native” way.
The Blog Series
This is the fifth in a series of blogs on the topic of the evolving enterprise WAN that is based on a survey that was completed in May 2016 by 110 network professionals. The previous blogs were:
The recent announcement that Facebook has developed an open-source, white-box optical transmission platform has led some pundits in the industry to predict the imminent death of traditional optical vendors. While there will certainly be an impact, that prediction is significantly premature.
In 2012, an executive who worked for one of the largest European service providers shared his dream with the attendees of Layer123’s first software-defined networking (SDN) & OpenFlow World Congress in Darmstadt, Germany. According to him, the reason for all the misery in carrier-land were not permanent price battles, flat-rates, and cut-throat competition; it was us, the vendors.
Openflow is the “father of software defined networks” in the minds of many engineers. To understand Openflow, however, you cannot just look at the protocol itself; rather you must go back to the beginning, in the mists of old networking.
Some service providers are regarding the strongest users of their network as their worst enemies… the OTT’s. Those mystic folks who reside in data centers, earn billions and billions and don’t even have an own network.
Topics: Service Providers
At my recent presentation to the 2016 Canadian Utilities Information & Communications Technology Conference in Toronto entitled “Is Your Network Secure or Secured?” I started by explaining to the audience that the purpose of any good security lecture is to scare the audience.
This is the fourth in a series of blogs on the topic of the evolving enterprise WAN that is based on a survey that was completed in May 2016 by 110 network professionals.
The aim of LTE was to make anytime, anywhere services a reality. To achieve this, LTE increased capacity, improved coverage and provided high-speed mobile data. Demand for data has since increased beyond all expectations and today there is a tidal wave of traffic on mobile networks.
At several recent trade shows, most notably the NFV and Carrier SDN Event, Heavy Reading Analyst Sterling Perrin showed a slide demonstrating the industry’s long history with IP and Optical integration. One of the images on that slide is an article in LightReading from April, 2000 entitled “IP over Glass, Who Cares?”, a very interesting article to re-read from a historical perspective to see just how far the industry has progressed in 16 ½ years.
Topics: Enhancing Network Efficiency