Device, method and system for transferring frame
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United States of America Patent
Stats
-
Jan 29, 2008
Grant Date -
Feb 14, 2002
app pub date -
Aug 10, 2001
filing date -
Aug 10, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
In between network devices interconnected by plural optical channels, logical paths are defined according to upper traffic and also priority of the traffic. The network device includes: a frame forming section for reading user packets out of a buffer section composed of plural buffers defined for the respective paths on transfer schedule, and forming path frames having a specified frame length and individual ordinal numbers with respect to each path; a switch for selecting output channels to equally distribute the path frames by round robin scheduling; and data transmitting part for transmitting data on the logical paths. Thus, it is made possible to realize a frame transfer system capable of performing data transmission, which satisfies QOS (Quality Of Service) required for user traffic, on the WDM networks connected by plural OCHs.
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