Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via time channels
Reexamination Certificate
2006-12-26
2011-11-15
Harper, Kevin C (Department: 2462)
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via time channels
C370S509000
Reexamination Certificate
active
08059685
ABSTRACT:
The present invention reserves special Ethernet timing packets to mark timing within Ethernet and OTN, and secondarily creates frames within the Ethernet stream through the timing marker packets. The result is standard Ethernet with timing capability that can be transported over standard Ethernet links and/or within OTN. This timing capability can be utilized to carry synchronization over asynchronous Ethernet and OTN streams. Advantageously, enabling Ethernet and OTN to carry synchronous information will de-risk switching from SONET/SDH to Ethernet and/or OTN for service providers. The present invention also includes frame decomposition of the Ethernet stream. Ethernet packets are broken into fixed bandwidth and excess bandwidth. The fixed bandwidth is subdivided into fixed (negotiated) flits, with each flit corresponding to a specific user or combination of users like a private tunnel. This offers service providers a method to provide deterministic and more secure bandwidth over Ethernet to multiple clients.
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Duncan Ian H.
Gazier Michael A.
Ghodrat Morteza
Baratta Jr. Lawrence A.
Bernard Christopher L.
Ciena Corporation
Clements Bernard PLLC
Harper Kevin C
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