I believe Juniper was the first mainstream network vendor to use the term “fabric” aggressively to describe its next-generation network architecture when the company announced QFabric back in early 2011. There may have been another vendor that used it first, but Juniper made it mainstream. Since then, almost every network vendor uses the term “fabric” broadly, and Juniper itself announced its next phase in fabric-based network when it unveiled MetaFabric in late 2013.
Subsequently, I’ve heard many customers, investors, and even some other analysts ask me what the difference was between MetaFabric and QFabric. The first thing to understand is that while QFabric and MetaFabric are related, MetaFabric does not in any way replace QFabric. I’ve heard some rumors about Juniper’s QFabric being retired because of MetaFabric, but in discussions with Juniper, I can most certainly say that this is not true. QFabric is here to stay.