Sonet synchronous payload envelope pointer control system
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United States of America Patent
Stats
-
Dec 30, 2003
Grant Date -
N/A
app pub date -
Jun 3, 1999
filing date -
Jun 3, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A multiported integrated circuit performs pointer processing at the SONET STS and VT levels, and removes overhead information from a received electrical signal derived from an optical SONET signal. The integrated circuit operates to extract STM traffic and ATM traffic from the received SONET signal, in response to provisioning information received from a management and control unit. The extracted STM traffic is then combined with path switching information, and forwarded out a pair of interfaces, which enables path selection within an STM switch fabric within a local line unit and within a switch fabric on a partner line unit in an active/standby pair of line units. The path switching information is also output from the integrated circuit for transmission to a pair of ATM switch fabric units.
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