Network switch and optical transponder connectivity verification for wavelength division multiplexing network

Patent metadata

Field	Value
Publication number	US-11012174-B2
Application number	US-202016834352-A
Country	US
Kind code	B2
Filing date	Mar 30, 2020
Priority date	Jul 27, 2018
Publication date	May 18, 2021
Grant date	May 18, 2021

Abstract

Devices, computer-readable media and methods are disclosed for verifying that an optical transmit/receive device is correctly installed. For example, a processing system including at least one processor may activate a first light source of an optical transmit/receive device of a telecommunication network and detect a receiving of a light from the first light source at a port of an optical add/drop multiplexer of the telecommunication network. The processing system may then verify the optical transmit/receive device and the port of the optical add/drop multiplexer match a network provisioning order, when the receiving of the light from the first light source is detected, and may generate an indication that the optical transmit/receive device is correctly installed, when the optical transmit/receive device and the port of the optical add/drop multiplexer match the network provisioning order.

First claim

What is claimed is:

1. A method comprising:
activating, by a processing system including at least one processor, a first light source of an optical transmit/receive device of a telecommunication network, wherein the processing system includes the optical transmit/receive device, wherein the first light source is activated by the optical transmit/receive device in response to the optical transmit/receive device being powered on, and wherein the optical transmit/receive device comprises a transponder coupled to a port of an optical add/drop multiplexer and to a network switch;
detecting, by the processing system including the optical transmit/receive device, a receiving of a light from the first light source at the port of the optical add/drop multiplexer of the telecommunication network via a notification from the optical add/drop multiplexer;
activating, by the processing system including the optical transmit/receive device, a second light source at a first one of: the optical transmit/receive device or the network switch;
detecting, by the processing system including the optical transmit/receive device, a receiving of a light from the second light source at a different one of: the optical transmit/receive device or the network switch;
activating, by the processing system including the optical transmit/receive device, a third light source at the different one of: the optical transmit/receive device or the network switch;
detecting, by the processing system including the optical transmit/receive device, a receiving of a light from the third light source at the first one of: the optical transmit/receive device or the network switch;
verifying, by the processing system including the optical transmit/receive device, the optical transmit/receive device and the port of the optical add/drop multiplexer match a network provisioning order, in response to the detecting of the receiving of the light from the first light source, wherein the verifying further comprises:
verifying the optical transmit/receive device and the network switch match the network provisioning order, when the receiving of the light from the second light source is detected and when both:
the receiving of the light from the second light source is detected; and
the receiving of the light from the third light source is detected; and

generating, by the processing system including the optical transmit/receive device, an indication that the optical transmit/receive device is correctly installed, when the optical transmit/receive device and the port of the optical add/drop multiplexer match the network provisioning order.

2. The method of claim 1 , wherein the indication comprises at least one of:
a visual indication or an audio indication via at least one of:
the optical transmit/receive device;
the optical add/drop multiplexer;
a network switch associated with the optical transmit/receive device; or
a device of a network technician.

3. The method of claim 1 , wherein the indication comprises an entry in a network provisioning system.

4. The method of claim 1 , further comprising:
routing a light from a fourth light source of the telecommunication network to the port of the optical add/drop multiplexer; and
detecting a receiving of the light from the fourth light source at the optical transmit/receive device, wherein the verifying comprises:
verifying that the optical transmit/receive device and the port of the optical add/drop multiplexer match the network provisioning order, when both:
the receiving of the light from the first light source is detected; and
the receiving of the light from the fourth light source is detected.

5. A method comprising:
activating, by a processing system including at least one processor, a first light source of an optical transponder of a telecommunication network, wherein the processing system includes the optical transponder, and wherein the first light source is activated by the optical transponder in response to the optical transponder being powered on;
detecting, by the processing system including the optical transponder, a receiving of a light from the first light source at a network switch of the telecommunication network via a notification from the network switch;
activating, by the processing system including the optical transponder, a second light source at the optical transponder;
detecting, by the processing system including the optical transponder, a receiving of a light from the second light source at a port of an optical add/drop multiplexer of the telecommunication network;
routing, by the processing system including the optical transponder, a light from a third light source of the telecommunication network to the port of the optical add/drop multiplexer; and
detecting, by the processing system including the optical transponder, a receiving of the light from the third light source at the optical transponder;
verifying, by the processing system including the optical transponder, the optical transponder and the network switch match a network provisioning order, in response to the detecting of the receiving of the light from the first light source, wherein the verifying further comprises:
verifying the optical transponder and the port of the optical add/drop multiplexer match the network provisioning order, when the receiving of the light from the second light source is detected and when both:
the receiving of the light from the second light source is detected; and
the receiving of the light from the third light source is detected; and

generating, by the processing system including the optical transponder, an indication that the optical transponder is correctly installed, when the optical transponder and the network switch match the network provisioning order.

6. The method of claim 5 , further comprising:
activating a fourth light source at the network switch; and
detecting a receiving of a light from the fourth light source at the optical transponder.

7. The method of claim 6 , wherein the verifying comprises:
verifying that the optical transponder and the network switch match the network provisioning order, when both:
the receiving of the light from the first light source is detected; and
the receiving of the light from the fourth light source is detected.

8. The method of claim 5 , wherein the indication comprises at least one of:
an entry in a network provisioning system;
a visual indication or an audio indication via at least one of:
the optical transponder;
the network switch;
an optical add/drop multiplexer associated with the optical transponder; or
a device of a network technician.

9. A non-transitory computer-readable medium storing instructions which, when executed by a processing system including at least one processor, cause the processing system to perform operations, the operations comprising:
activating a first light source of an optical transponder of a telecommunication network, wherein the processing system includes the optical transponder, and wherein the first light source is activated by the processing system including the optical transponder in response to the optical transponder being powered on;
detecting a receiving of a light from the first light source at a network switch of the telecommunication network, wherein the detecting is performed by the processing system including the optical transponder in response to receiving a notification from the network switch;
activating a second light source at the optical transponder;
detecting a receiving of a light from the second light source at a port of an optical add/drop multiplexer of the telecommunication network;
routing a light from a third light source of the telecommunication network to t

Assignees

• At & T Ip I Lp

Inventors

• Tse Simon
• Birk Martin
• Vachhani Shweta
• Tse Kathleen

Classifications

• H04B10/25 Primary

  Arrangements specific to fibre transmission · CPC title

• H04J14/02122

  Colourless, directionless or contentionless [CDC] arrangements · CPC title

• H04Q11/0062 Primary

  Network aspects · CPC title

• H04Q2011/0016

  using wavelength multiplexing or demultiplexing · CPC title

• H04Q11/0005

  Switch and router aspects · CPC title