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Patent Searching and Data


Title:
ATM EXCHANGE NODE
Document Type and Number:
Japanese Patent JPH1127273
Kind Code:
A
Abstract:

To prevent a cell from being discarded due to overflow of a common buffer and to solve partiality of scrap of the cell due to dependence on packet length of the common buffer by adopting a convergence control system by discarding an estimated cell.

BOM cell reception information by a connection managing part 7 is received and the number of stored cells of the common buffer 4 calculated from difference between information on the number of informed and inputted cells by a buffer input control part 3 and information on the number of informed and outputted cells by a buffer output control part 5 are monitored in a cell storage counter by a buffer managing part 6. In addition, the number of storage of updated cells obtained by adding the number of storage of the estimated cells at completion of simultaneous reception of the cell in a desired section by the maximum packet size of connection, the number of unreceived cells of other maximum packet size transfer connection and the number of storage of the present cell of the common buffer 4 together is compared with a predetermined threshold value by the buffer managing part 6. Then the buffer managing part 6 controls convergence so as to discriminate propriety of reception of the cell of the connection and informs whether the packet reception is allowed or not allowed to a connection managing part 7.


Inventors:
YANO MASATSUGU
Application Number:
JP17415397A
Publication Date:
January 29, 1999
Filing Date:
June 30, 1997
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H04Q3/00; H04L12/28; (IPC1-7): H04L12/28; H04Q3/00
Domestic Patent References:
JPS6062469A1985-04-10
JPS4721963A
JPS63109979A1988-05-14
Attorney, Agent or Firm:
Kaneo Miyata (2 outside)