Software Defined Networks

For the most of my career I spent time configuring TCP stacks, IP ACLs, firewall rules and layer2 links. I worked with devices of multiple vendors, pulled together hubs, switches, routers and packet filters, used hardware and software tools to find why an application won’t connect to a remore peer. For the most time. Still, these days are over, since I’ve choosen a career working with customers a few years back. And while the interesst in techology is still there, the desire to dive into cabling and repetitive flipping switches has become very low over the years. Just as everything else in computing has been consumerized by the cloud, the network itself is still manual work (if done properly).

Software-Defined Networks may be here to overcome this perpective.

Internet will consist of 50 billion ­connected

Jeder Kühlschrank wird demnächst einen Internetanschluss haben“, hört man schon seit Jahren über das “Internet der Dinge”. Von Glühbirnen und dem Smart-Grid, das wegen der Energiewende kommt, ganz zu schweigen. Infografiken und Hochrechnungen gibt es in dem Zusammenhang eine ganze Reihe, wie zum Beispiel Cisco hochrechnet:

By 2020, according to forecasts from Cisco Systems, the global Internet will consist of 50 billion ­connected tags, televisions, cars, kitchen appliances, surveillance cameras, smartphones, utility meters, and ­whatnot. This is the Internet of Things, and what an idyllic ­concept it is.

Die Gegenwärtige Infrastruktur des Internet kommt dabei an seine Grenzen, der Aufbau weiterer Kapazitäten wird zunehmend Kostenintensiver.  “Why the Internet Needs Cognitive Protocols” beschreibt diese Probleme und Ansätze zur Lösung.

 

via IEEE Spectrum.