Method and device of multicasting data in a communications syste

Details Method and device of multicasting data in a communications syste Method and device of multicasting data in a communications syste

1994-04-28

1996-10-01

Bowler, Alyssa H.

395700, 395650, 39520008, 395309, G06F 1516

Patent

active

055618073

ABSTRACT:
An apparatus and method for multicasting messages stored in data buffers of a data storage. Each message is composed of data stored in a plurality of the data buffers. Each data buffer is controlled and mapped to a unique direct control block (DCB) which stores information characterizing the data buffer. By chaining the DCBs variable length, messages can be generated. Indirect control blocks (ICB) stores information characterizing the data or messages duplicated and points to a DCB. A field in the DCB carries a count representing the number of times the message is to be duplicated.

REFERENCES:
patent: 4507781 (1985-03-01), Alvarez, III et al.
patent: 5148527 (1992-09-01), Basso et al.
patent: 5197065 (1993-03-01), Calvignac et al.
patent: 5333269 (1994-07-01), Calvignac et al.
patent: 5390173 (1995-02-01), Spinney et al.
IBM Technical Disclosure Bulletin, vol. 34, No. 10A, Mar. 1992, New York US pp. 464-465, "Multicast/Broadcast Mechanism for a Shared Buffer Packet Switch".

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