CONTROL OF BUFFERING IN MULTI-TOKEN OPTICAL NETWORK FOR DIFFERENT TRAFFIC CLASSES
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United States of America Patent
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N/A
Issued Date -
Apr 18, 2013
app pub date -
Aug 23, 2010
filing date -
Jun 11, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A node (260) for an optical communications network in which a token is passed between nodes, indicating that a corresponding optical channel is available for transmission during a token holding time while that node holds that token, until it passes the token to another node. A transmit controller (290) determines a traffic class of said packet and controls a buffer to forward a packet from the buffer to the transmitter according to the traffic class, if there is sufficient of the token holding time remaining before the received token must be passed on to another node for said packet to be transmitted by the transmitter over an optical channel corresponding to the received token. By having the packet forwarding dependent on traffic class, packets can be handled differently to suit different characteristics of the traffic classes.
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