Systems Network Architecture (networking) (SNA) IBM's proprietary high level networking protocol standard, used by IBM and IBM compatible mainframes.
Also referred to as "Blue Glue", SNA is a bletcherous protocol once widely favoured at commercial shops. The official IBM definition is "that which binds blue boxes together." It may be relevant that Blue Glue is also a 3M product commonly used to hold down carpets in dinosaur pens. [Jargon File] Last updated: 1994-11-23
