Connectivity verification testing and topology discovery
First Claim
1. A system for performing connectivity verification testing and topology discovery in a reconfigurable optical add/drop multiplexer (ROADM) comprising:
- a first ROADM block of a plurality of ROADM blocks, wherein each ROADM block is a ROADM degree or an add/drop block, the first ROADM block including;
a first plurality of internal ports including at least a first internal port, a second internal port, and a third internal port, each connected to another ROADM block via respective optical fibers;
a test signal transmitter configured to inject a first outgoing test signal having a first signature into the first internal port and a second outgoing test signal having a second signature different from the first signature into the second internal port, wherein the first outgoing test signal and second outgoing test signal are out-of-band of optical data signals traversing the ROADM; and
a test signal monitor configured to monitor for incoming test signals at each of the plurality of internal ports, wherein the test signal monitor is configured to;
validate, based on a signature of an incoming test signal received at the third internal port of the first ROADM block, that a first connection exists between the third internal port of the first ROADM block and a first internal port of a second plurality of internal ports of a second ROADM block.
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Accused Products
Abstract
Systems and methods for performing connectivity verification testing and topology discovery in a reconfigurable optical add/drop multiplexer (ROADM) are provided. The ROADM can include a ROADM block having a plurality of internal ports connected to a fiber shuffle via respective optical fibers. The ROADM block includes a test signal transmitter configured to inject an outgoing test signal having a unique signature into each internal port. The outgoing test signals are out-of-band of optical data signals traversing the ROADM. The ROADM block includes a test signal monitor configured to monitor for incoming test signals at each of the internal ports. The test signal monitor is configured to validate, based on a signature of an incoming test signal received at an internal port of the ROADM block, whether a valid connection exists between the internal port and an internal port of a second ROADM block.
6 Citations
25 Claims
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1. A system for performing connectivity verification testing and topology discovery in a reconfigurable optical add/drop multiplexer (ROADM) comprising:
a first ROADM block of a plurality of ROADM blocks, wherein each ROADM block is a ROADM degree or an add/drop block, the first ROADM block including; a first plurality of internal ports including at least a first internal port, a second internal port, and a third internal port, each connected to another ROADM block via respective optical fibers; a test signal transmitter configured to inject a first outgoing test signal having a first signature into the first internal port and a second outgoing test signal having a second signature different from the first signature into the second internal port, wherein the first outgoing test signal and second outgoing test signal are out-of-band of optical data signals traversing the ROADM; and a test signal monitor configured to monitor for incoming test signals at each of the plurality of internal ports, wherein the test signal monitor is configured to; validate, based on a signature of an incoming test signal received at the third internal port of the first ROADM block, that a first connection exists between the third internal port of the first ROADM block and a first internal port of a second plurality of internal ports of a second ROADM block. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of performing connectivity verification testing and topology discovery in a reconfigurable optical add/drop multiplexer (ROADM), the method comprising:
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injecting, using a test signal transmitter of a first ROADM block of a plurality of ROADM blocks, a first outgoing test signal having a first signature into a first internal port of a first plurality of internal ports and a second outgoing test signal having a second signature different from the first signature into a second internal port of the first plurality of internal ports, wherein the first outgoing test signal is out-of-band of optical data signals traversing the ROADM; monitoring, using a test signal monitor of the first ROADM block, for an incoming test signal at each of the plurality of internal ports, and; verifying, based on receiving the incoming test signal at a third internal port of the first plurality of internal ports, that a first connection exists between the third internal port of the first plurality of internal ports and a first internal port of a second plurality of internal ports of a second ROADM block, wherein each of the first internal port, the second internal port, and the third internal port of the first plurality of internal ports is connected to another ROADM block via a respective optical fiber. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24)
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25. A non-transitory computer-readable medium having stored thereon instructions configured to cause one or more processors to execute a method of performing connectivity verification testing and topology discovery in a reconfigurable optical add/drop multiplexer (ROADM), the method comprising:
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injecting, using a test signal transmitter of a first ROADM block of a plurality of ROADM blocks, a first outgoing test signal having a first signature into a first internal port of a first plurality of internal ports and a second outgoing test signal having a second signature different from the first signature into a second internal port of the first plurality of internal ports, wherein the first outgoing test signal is out-of-band of optical data signals traversing the ROADM; monitoring, using a test signal monitor of the first ROADM block, for an incoming test signal at each of the plurality of internal ports, and; verifying, based on receiving the incoming test signal at a third internal port of the first plurality of internal ports, that a first connection exists between the third internal port of the first plurality of internal ports and a first internal port of a second plurality of internal ports of a second ROADM block, wherein each of the first internal port, the second internal port, and the third internal port of the first plurality of internal ports is connected to another ROADM block via a respective optical fiber.
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Specification