ADVA had a nifty new trick for their mobile backhaul switches to learn, video caching. At MWC they were showing off their new Cachejack and told SemiAccurate a bit about how it all works. It is an easy enough concept to grasp, take a carrier Ethernet switch and slap storage on it so you don’t have to send the same bits over the long haul wires again and again. This saves precious bandwidth to and from the remote sites, a scarce commodity in most places. The devil however is in the details, and that is what ADVA’s Cachejack is said to have worked out.