By Greg Smith, Service Provider Marketing Manager, Cisco
Today we take instant communications for granted and our latest Cisco Visual Networking Index predicts that we’ll soon reach the “Zettabyte Era” for global IP traffic (a zettabyte being 10^21 bytes). Recently I had an opportunity to see a bit of telecommunications history from what I’ll call the “Kilobyte Era”. While visiting a family I knew in Saverne, a small town outside of Strasbourg, France we toured a local castle (Castle Haut-Barr) with a view of the countryside. Besides the 12th century castle there was a (restored) tower from the original Paris-Strasbourg optical semaphore system, one of the first communications networks in the world. I’d read about this system but never actually seen it and my hosts were gracious enough to let me “geek out” on this bit of networking history.