In SNA, a subarea node which provides protocol support for peripheral nodes. In XRF, the point at which terminal sessions are switched from the failing system to the newly active system.

Boundary network node. Obsolete SNA terminology for a boundary node.

boundary network node. In SNA terminology, a subarea node that provides boundary function support for adjacent peripheral nodes. This support includes sequencing, pacing, and address translation. Also called boundary node.

Boundary Network Node. An IBM router enhancement that refers to the RFC 1490 specification for routed SNA over frame relay. BNN allows native SNA traffic to communicate over public or private frame relay networks directly with an SNA processor. BNN does not carry the source and destination MAC addresses in the network packet. Bay Networks routers automatically select BNN with frame relay networks configured without source-route encapsulation.

BNN, Bart's Neverending Network, is a public-service broadcasting network in the Netherlands, which was founded on August 15, 1997 and is primarily targeted at a younger - teen to young adult - audience. BNN broadcasts both television and radio shows.