Method for using the complete resource capacity of a synchronous digital hierarchy network, subject to a protection mechanism, in the presence of data (packet) network, and relating apparatus for the implementation of the method
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United States of America Patent
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May 6, 2008
Grant Date -
Oct 28, 2004
app pub date -
Nov 25, 2003
filing date -
Apr 22, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides for a method and apparatus for using the complete resource capacity of a synchronous digital hierarchy infrastructure, with a protection system, in the presence of a data (packet) network, in which the complete SDH/SONET protection (spare) capacity is used to carry data traffic in both normal and failure conditions.In case of failure the working capacity is cut, and the TDM traffic is subject to a protection mechanism and is shifted over the protection capacity; the part of high (and medium) priority data traffic is shifted over the protection capacity; a part of the data low-priority extra-traffic (transported over the protection capacity in normal conditions) will share the remaining protection capacity with the low-priority best-effort part of the data traffic transported over the working capacity.
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