<NetworkiNg> (SNA) IBM' s proprietary high level NetworkiNg protocolstaNdard, 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 iNdiNosaur peNs. [JargoN File] (1994-11-23)