Method and an apparatus to automatically verify connectivity within an optical network node
First Claim
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1. A method to verify connectivity between an optical transceiver and a wavelength switch module (WSM), the method comprising:
- sending a first optical signal from the optical transceiver to the WSM;
checking a second optical signal received by the optical transceiver after sending the first optical signal;
determining whether the second optical signal corresponds to the first optical signal; and
the optical transceiver putting an identification into the first optical signal to send with the first optical signal to the WSM to allow a processor communicably coupled to the WSM to determine if the second optical signal corresponds to the first optical signal.
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Abstract
A method and an apparatus to provide optical equipment protection have been disclosed. In one embodiment, the method includes sending a first optical signal from an optical transceiver to a wavelength switch module (WSM), checking a second optical signal received by the optical transceiver after sending the first optical signal, and determining whether the second optical signal corresponds to the first optical signal. Other embodiments have been claimed and described.
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Citations
26 Claims
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1. A method to verify connectivity between an optical transceiver and a wavelength switch module (WSM), the method comprising:
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sending a first optical signal from the optical transceiver to the WSM; checking a second optical signal received by the optical transceiver after sending the first optical signal; determining whether the second optical signal corresponds to the first optical signal; and the optical transceiver putting an identification into the first optical signal to send with the first optical signal to the WSM to allow a processor communicably coupled to the WSM to determine if the second optical signal corresponds to the first optical signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A machine-accessible medium that provides instructions that, if executed by a processor, will cause the processor to perform operations comprising:
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receiving an interrupt from a wavelength switch module; and in response to the interrupt, identifying the wavelength switch module, and identifying an input port of the WSM that receives a first optical signal from an optical transceiver. - View Dependent Claims (10, 11, 12)
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13. An apparatus comprising:
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a wavelength switch module (WSM); an optical transceiver, detachably coupled to the WSM, to send a first optical signal to the WSM and to detect a second optical signal received from the WSM after sending the first optical signal, wherein the optical transceiver comprises an encoder to put an identification into the first optical signal to send with the first optical signal to the WSM; and a set of one or more processors coupled to the WSM to automatically determine whether the second optical signal corresponds to the first optical signal in response to the identification and an interrupt from each of the WSM and the optical transceiver. - View Dependent Claims (14, 15, 16, 17)
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18. A system comprising:
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an optical network including a plurality of optical fibers; and a first optical network node, coupled to the optical network, the first optical network node comprising; a wavelength switch module (WSM); an optical transceiver, detachably coupled to the WSM, to send a first optical signal to the WSM and to detect a second optical signal received from the WSM after sending the first optical signal, wherein the optical transceiver comprises an encoder to put an identification into the first optical signal to send with the first optical signal to the WSM; and a set of one or more processors coupled to the WSM to automatically determine whether the second optical signal corresponds to the first optical signal in response to the identification and an interrupt from each of the WSM and the optical transceiver. - View Dependent Claims (19, 20, 21, 22)
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23. A method comprising:
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sending a first optical signal from an optical transceiver to an input port of a wavelength switch module (WSM), wherein the first optical signal passes through the WSM via a channel within the WSM; in response to the WSM receiving the first optical signal, causing a processor to look up a wavelength designated to the channel; and checking whether the optical transceiver is at the wavelength designated to the channel. - View Dependent Claims (24, 25)
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26. A method for commissioning in an optical network node comprising:
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transmitting an optical signal of a given wavelength from an optical transceiver that is in the optical network node, wherein a laser of said optical transceiver is connected to one of a plurality of add ports on one of a plurality of wavelength switch modules (WSMs) in said optical network node, wherein a light receiver of said optical transceiver is connected to a corresponding one of a plurality of drop ports on the one of the plurality of WSMs, wherein at least some of said plurality of WSMs handle different wavelengths than others and wavelengths handled by each of said plurality of WSMs are tracked in configuration information of a corresponding WSM, and wherein a default configuration for the plurality of WSMs is to pass through a received optical signal from add port to corresponding drop port; detecting the optical signal in the one of the plurality of WSMs; based on said detecting of the optical signal, determining the wavelength handled by the one of the plurality of WSMs from the configuration information; detecting the optical signal at the optical transceiver; correlating said detectings to determine that the optical transceiver is connected to the one of the plurality of WSMs; and determining if the wavelength of the optical signal matches the wavelength handled by the one of the plurality of WSMs.
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Specification