Many vendors will claim to have invented the term “network fabric.” I’m not 100% sure who actually used it first but in my mind, Juniper was the first to go mainstream with it. It’s a little like MPLS was back in the day. Ipsilon actually invented it but Cisco evangelized it and made it a real market. So I’ll give Juniper the nod here and acknowledge that launching the project “Stratus” is when the term “network fabric” actually went mainstream. I believe Brocade was the first vendor to ship a fabric, allowing them to wear that badge of honor.
The launch of Stratus was several years ago and, since then, much has transpired. Stratus became QFabric, David Yen jumped to arch rival Cisco and QFabric has fallen under tremendous media scrutiny as a product that has failed to come close to the initial hype around it. So, the question I pose is whether QFabric is indeed the game-changing technology Juniper says it is, or it’s just a cool idea that never really catches on.
On the positive side, I will say that the concept behind QFabric is interesting. It’s very simple and elegant – a big distributed switch. I remember having a discussion with Juniper’s Andy Ingram about Occam’s Razor. That is the theory that states when there are multiple solutions to a problem, the simplest one is the best one. What’s simpler than a single-tier network? Nothing. So, according to that principle, QFabric should be a smashing success.