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US 7,466,720 B2Granted
Flexible architecture for SONET and OTN frame processing
OwnerOle Bentz, Michael J. Haertel +1inventors
InventorsOle Bentz, Michael J. Haertel, I. Claude Denton
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Abstract
A flexible architecture is presented that allows either Synchronous Optical Network (SONET) framing, Optical Transport Network (OTN) framing, or SONET framing followed by OTN framing. The architecture consists of SONET frame processors, OTN frame processors, and a configurable selection network.
Claims18
An apparatus comprising:
- an Optical Transport Network (OTN) frame processor having an input port coupled to a primary input bus and an output port coupled to an OTN output bus;
- a Synchronous Optical Network (SONET) frame processor having an output port coupled to a SONET output bus and an input port selectably coupled to one of the primary input bus and the OTN output bus;
- a SONET frame detector coupled between the input port of the SONET frame processor and the primary input bus and the OTN output bus;
- and
- a primary output bus selectably coupled to one of the SONET output bus and the OTN output bus.
2 more elements
A method comprising:
- deframing Optical Transport Network (OTN) frames from a primary data stream into a first data stream;
- selecting either the primary data stream or the first data stream as a selected signal;
- detecting a Synchronous Optical Network (SONET) frame from the selected signal to generate a detected SONET stream;
- after detecting the SONET frame, receiving the detected SONET stream into a SONET frame processor;
- deframing said detected SONET stream into a second data stream;
- and
- selectably transmitting either the first data stream or the second data stream as an output data stream.
4 more elements
Dependencies are inferred from the claim text.