Bandwidth management apparatus

Details Bandwidth management apparatus Bandwidth management apparatus

2011-08-16

2011-08-16

Ferris, Derrick (Department: 2463)

Multiplex communications

Data flow congestion prevention or control

Flow control of data transmission through a network

Reexamination Certificate

active

08000247

ABSTRACT:
In a bandwidth management apparatus that outputs packets by observing the bandwidth set value predetermined for each destination, provisions are made to prevent a situation where the contracted bandwidth cannot be provided due to influences from packets destined for other destinations. When performing bandwidth management using token buckets provided one for each destination, each token bucket is updated by setting the upper limit token value higher when any packet is stored in the corresponding queue than when no packets are stored; this serves to prevent a situation where even when a packet has already arrived at the queue, the packet cannot be output because a packet is being output from some other queue and, as a result, unconsumed tokens are discarded at the next update time.

REFERENCES:
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patent: 2004/0190552 (2004-09-01), Kim et al.
patent: 2005-244417 (2005-09-01), None

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