Packet shaper

Details Packet shaper Packet shaper

2005-07-19

2005-07-19

Ho, Duc (Department: 2665)

Multiplex communications

Data flow congestion prevention or control

Control of data admission to the network

C370S230000, C370S235100

Reexamination Certificate

active

06920109

ABSTRACT:
When a packet arrives at a shaping unit500, a discard control unit510judges whether to “store” or “discard” the arrived packet. Packets judged to be “stored” are stored into a packet storage FIFO buffer520and sent out within a transmission bandwidth greater than the total sum of user-by-user minimum bandwidths. A bandwidth check unit600checks bandwidth per user and judges packets that fall within the bandwidth to be high priority packets and packets that fall outside the bandwidth to be low priority packets. If a large quantity of packets are stored into the packet storage FIFO buffer520, the discard control unit510determines that low priority packets are exclusively “discarded,” thus securing high priority packets from being discarded. Thereby, the shaping unit500ensures proper packet transmission within user-specific minimum bandwidth.

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patent: 7-95212 (1995-04-01), None
patent: 11-55278 (1999-02-01), None

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