Frame Switching Node Matrix Mechanism
Original Publication Date: 1987-Jan-01
Included in the Prior Art Database: 2005-Jan-31
This mechanism is used in a high performance network composed of traditionnal network access nodes connected through one or several frame switching nodes (FSN) which realize the network transit function. The main characteristics of the FSN are: Multiplexing of HDLC frames of variable length. . Routing of the incoming HDLC (high level data link control) frame to the selected output line according to the routing tag information included in the transmission header of each frame. . No error recovery. Frame drop in case of overflow. This matrix mechanism is designated to interconnect in the FSN all input line adapters to all output line adapters, without contention. Once the frame routing tag is analyzed, the destination register (DEST.REG.