Multiplex communications – Wide area network – Packet switching
Patent
1994-03-08
1995-10-17
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 941, H04Q 1104
Patent
active
054597234
ABSTRACT:
In a fast-packet network, incoming high-level data-link control (HDLC) data are supplied by a receiving line interface device to a packet management device comprising a receiving state machine that shifts the data through a data link connection identifier (DLCI) extractor. The extracted DLCI is used as an address indicating a location of a translation RAM that stores the destination DLCI and control data corresponding to the incoming HDLC data. The destination DLCI replaces the current DLCI field of the incoming data. A frame control state machine requests a frame buffer of a frame buffer RAM to be allocated to the incoming HDLC packet and writes the data to the allocated buffer. Simultaneously, a packet availability message is sent to the destination packet management device indicated by the control data in the translation RAM. A transmitting circuit of the destination packet management device has a transmitting state machine that rewrites the HDLC data from the frame buffer RAM to a FIFO register. When the FIFO register is full or entire data frame is in the FIFO register, the data are transferred to an HDLC transmitter coupled to a transmitting line interface device.
REFERENCES:
patent: 4638475 (1987-01-01), Koike
patent: 4933938 (1990-06-01), Sheehy
patent: 5086428 (1992-02-01), Perlman et al.
patent: 5136584 (1992-08-01), Hedlund
patent: 5189672 (1993-02-01), Le Bihan
patent: 5249468 (1994-02-01), Yoshida
patent: 5311509 (1994-05-01), Heddes et al.
patent: 5361259 (1994-11-01), Hunt et al.
patent: 5363369 (1994-11-01), Hemmady et al.
Advanced Micro Devices
Hom Shick
Olms Douglas W.
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