Synchronous optical network using a ring architecture
DC CAFC
First Claim
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1. A Synchronous Optical Network (SONET) system comprising:
- a first SONET ring that occupies a physical route;
a second SONET ring that shares at least a portion of the physical route with the first SONET ring but that does not share ring terminals or ring spans with the first SONET ring; and
a connection system coupled to the first SONET ring and to the second SONET ring and configured to groom SONET traffic at a Synchronous Transport Signal (STS) level and a Virtual Tributary (VT) level.
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Abstract
The present invention is a SONET system for use in large geographic areas, such as areas encompassed by an IXC network, or which are larger than a LATA or a metropolitan area. The system uses self-healing rings which are interconnected. Some of the rings are stacked within the same physical routes in order to minimize the number of ring terminals on each ring.
24 Citations
26 Claims
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1. A Synchronous Optical Network (SONET) system comprising:
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a first SONET ring that occupies a physical route; a second SONET ring that shares at least a portion of the physical route with the first SONET ring but that does not share ring terminals or ring spans with the first SONET ring; and a connection system coupled to the first SONET ring and to the second SONET ring and configured to groom SONET traffic at a Synchronous Transport Signal (STS) level and a Virtual Tributary (VT) level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A Synchronous Optical Network (SONET) system comprising:
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a first SONET ring that occupies a physical route; a second SONET ring that shares at least a portion of the physical route with the first SONET ring but that does not share ring terminals or ring spans with the first SONET ring; a first connection system coupled to the first SONET ring and to the second SONET ring and configured to groom SONET traffic; and a second connection system coupled to the first SONET ring and to the second SONET ring and configured to groom the SONET traffic. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification
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Litigation Data
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Current AssigneeSprint Communications Company LP (Deutsche Telekom AG)
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Original AssigneeSprint Communications Company LP (Deutsche Telekom AG)
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InventorsNorman, Charles William Jr.
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Primary Examiner(s)Patel, Ajit
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Application NumberUS08/974,774Time in Patent Office1,006 DaysField of Search370/352, 370/351, 370/353-356, 370/386, 370/388, 370/468, 370/401-406, 370/535, 370/539US Class Current370/405CPC Class CodesH04J 14/02 Wavelength-division multipl...H04J 2203/0041 Star, e.g. cross-connect, c...H04J 2203/0042 RingH04J 2203/006 Fault tolerance and recoveryH04J 3/085 for ring networks, e.g. SDH...H04Q 11/04 for time-division multiplex...H04Q 11/0478 Provisions for broadband co...
