Interlocking SONET/SDH network architecture
First Claim
1. A telecommunications network comprising:
- a first SONET/SDH ring that comprises a first plurality of nodes, wherein said first SONET/SDH ring defines a first address space and wherein each of said first plurality of nodes is identified by a unique address in said first address space; and
a second SONET/SDH ring that comprises a second plurality of nodes, wherein second SONET/SDH ring defines a second address space and wherein each of said second plurality of nodes is identified by a unique address in said second address space;
wherein there are at least two nodes that have an address in the address space of said first SONET/SDH ring and an address in the address space of said second SONET/SDH ring.
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Accused Products
Abstract
A SONET/SDH architecture is disclosed that enables the multiplexing of STS-1'"'"'s from different SONET/SDH rings into a single STS-N for transmission via a single optical fiber, but while maintaining the association of each of the STS-1'"'"'s with its respective SONET/SDH ring. For example, when an STS-48 carries 12 STS-1'"'"'s from a first SONET/SDH ring and 12 STS-1'"'"'s from a second SONET/SDH ring, the STS-48 carries: the automatic protection switching channel for the 12 STS-1'"'"'s from the first SONET/SDH ring (with addresses specified in the address space of the first SONET/SDH ring); and the automatic protection switching channel for the 12 STS-1'"'"'s from the second SONET/SDH ring (with addresses specified in the address space of the second SONET/SDH ring).
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Citations
15 Claims
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1. A telecommunications network comprising:
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a first SONET/SDH ring that comprises a first plurality of nodes, wherein said first SONET/SDH ring defines a first address space and wherein each of said first plurality of nodes is identified by a unique address in said first address space; and
a second SONET/SDH ring that comprises a second plurality of nodes, wherein second SONET/SDH ring defines a second address space and wherein each of said second plurality of nodes is identified by a unique address in said second address space;
wherein there are at least two nodes that have an address in the address space of said first SONET/SDH ring and an address in the address space of said second SONET/SDH ring. - View Dependent Claims (2, 3, 4)
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5. A telecommunications network comprising:
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a first SONET/SDH ring; and
a second SONET/SDH ring;
an optical fiber that carries;
(1) a first STS-1 that is associated with said first SONET/SDH ring, and (2) a second STS-1 that is associated with said second SONET/SDH ring.
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6. A telecommunications network comprising:
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a first SONET/SDH ring; and
a second SONET/SDH ring;
an optical fiber that carries;
(1) a first automatic protection switching channel that is associated with said first SONET/SDH ring, and (2) a second automatic protection switching channel that is associated with said second SONET/SDH ring.
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7. A telecommunications network comprising:
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a first SONET/SDH ring; and
a second SONET/SDH ring;
an optical fiber that carries;
(1) the K1 and K2 line overhead bytes that are associated with said first SONET/SDH ring, and (2) the K1 and K2 line overhead bytes that are associated with said second SONET/SDH ring.
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8. A system comprising:
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a first optical fiber that is associated with a first SONET/SDH ring;
a second optical fiber that is associated with a second SONET/SDH ring;
a third optical fiber;
a fourth optical fiber that is associated with said first SONET/SDH ring;
a fifth optical fiber that is associated with said second SONET/SDH ring;
a first SONET/SDH node for receiving a first STS-N from said first optical fiber, for receiving a second STS-N from said second optical fiber, and for transmitting said first STS-N and said second STS-N via said third optical fiber; and
a second SONET/SDH node for receiving said first STS-N and said second STS-N from said third optical fiber, for transmitting said first STS-N via said fourth optical fiber, and for transmitting said second STS-N via said fifth optical fiber. - View Dependent Claims (9)
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10. A SONET/SDH node comprising:
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a first input port for receiving a first automatic protection switching channel from a first optical fiber that is associated with a first SONET/SDH ring;
a second input port for receiving a second automatic protection switching channel from a second optical fiber that is associated with a second SONET/SDH ring;
a multiplexor for multiplexing said first automatic protection switching channel and said second automatic protection switching channel into one STS-N frame; and
a output port for transmitting said STS-N frame via a third optical fiber.
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11. A SONET/SDH node comprising:
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an input port for receiving a STS-N frame from a first optical fiber;
a demultiplexor for demultiplexing a portion of first automatic protection switching channel that is associated with a first SONET/SDH ring and a portion of second automatic protection switching channel that is associated with a second SONET/SDH ring from said STS-N frame;
a first output port for transmitting said portion of first automatic protection switching channel via a second optical fiber that is associated with said first SONET/SDH ring; and
a second output port for transmitting said portion of second automatic protection switching channel via a third optical fiber that is associated with said second SONET/SDH ring.
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12. A method of operating a time-division multiplexed telecommunications system, said method comprising:
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receiving a first optical carrier signal that comprises a first source address and a first destination address in a first address space;
receiving a second optical carrier signal that comprises a first source address and a first destination address in a second address space;
multiplexing said first optical carrier signal and said second optical carrier signal into a frame; and
transmitting said frame;
wherein said first optical carrier signal in said frame comprises a second source address and a second destination address in said first address space; and
wherein said second optical carrier signal in said frame comprises a second source address and a second destination address in said second address space. - View Dependent Claims (13)
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14. A method of operating a time-division multiplexed telecommunications system, said method comprising:
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receiving a frame that comprises (1) a first optical carrier signal that comprises a first source address and a first destination address in a first address space, and (2) a second optical carrier signal that comprises a first source address and a first destination address in a second address space;
demultiplexing said first optical carrier signal and said second optical carrier signal from said frame;
transmitting said first optical carrier signal, wherein said first optical carrier signal as transmitted comprises a second source address and a second destination address in said first address space; and
transmitting said second optical carrier signal, wherein said second optical carrier signal as transmitted comprises a second source address and a second destination address in said second address space. - View Dependent Claims (15)
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Specification