Abstract: Systems and methods include providing a user interface visualizing a current state of an optical network; receiving user inputs related to capacity mining in the optical network; determining a future state with the capacity mining based on the user inputs; and providing the user interface visualizing the future state. The future state can be presented with respect to a failed link and restoration of traffic on the failed link. The future state can include a plurality of plans with a visualization showing how much of the traffic is restored based on different approaches to the capacity mining. The capacity mining can include configuring optical modems based on determined available excess capacity.

Abstract: Systems and methods include receiving information from a governed system having resources; implementing one or more context neutral or specific control applications that each is a pipeline of a plurality of functions to control the resources; utilizing the information as one input to a first function in the plurality of functions; utilizing inputs from one or more control applications as inputs to any of the plurality of functions; and causing actions on the resources based on outputs of a last function in the plurality of functions. The plurality of functions can include sensing, discerning, inferring, deciding, and causing the actions.

Abstract: Systems and methods for compensating for spectrum power offsets with respect to a target profile are provided. A method, according to one implementation, includes determining whether an upstream controller is currently performing an upstream action, or intends to perform the upstream action soon thereafter, with respect to an upstream power compensation unit. The method also includes determining whether there is a need to perform a local action with respect to the local power compensation unit. Furthermore, the method includes the step of performing the local action with respect to the local power compensation unit in response to determining that (a) the upstream controller is not currently performing the upstream action (or does not intend to perform the upstream action soon thereafter) and (b) there is a need to perform the local action.

Abstract: Systems and methods for timing over a Metro Transport Networking (MTN) path include detecting a specific block in a stream of blocks, wherein each block is encoded based on a line code, and sampling an output of a clock to determine a timestamp reference based on detection of the specific block, and transmitting timing information based on the timestamp reference. The specific block can be a control block. The timing information can be transmitted via a Precision Time Protocol (PTP) message. The timing information can be transmitted via a plurality of subsequent specific blocks.

Abstract: Systems and methods for extended protection in a Segment Routing network that utilizes Flexible Algorithm include defining a first Flexible Algorithm that segregates the Segment Routing network into a first subset network that excludes any of links and nodes from the Segment Routing network; defining a second Flexible Algorithm that segregates the Segment Routing network into a second subset network, different from the first subset network; and defining extended protection for the first Flexible Algorithm with the second Flexible Algorithm whereby the second Flexible Algorithm is usable for path to protect the first Flexible Algorithm.

Abstract: Systems and methods are provided for addressing issues caused by interruptions that may occur while operating under the Metro Ethernet Forum (MEF) 35.1 standard. A method, according to one implementation, includes obtaining PM data during a current Measurement Interval of an ongoing PM session in accordance with MEF 35.1. The PM data can be locally stored as a current dataset and reported at the end of the current Measurement Interval for storage in a history database. Following an interruption event that interrupts at least the current Measurement Interval, the method detects a recommencement event that clears the interruption event and allows a PM session to resume. The method further includes determining a number of Measurement Intervals affected by the interruption event based on an end time of a last-reported Measurement Interval and then inserting the number of affected Measurement Intervals into the history database after the last-reported Measurement Interval.

Abstract: Systems and methods for Segment Routing (SR) Traffic Engineering (SR-TE) in a network include receiving link utilization measurements at a Label Edge Router (LER) with the link utilization measurements flooded by one or more Label Switch Routers (LSRs); and, responsive to one or more of detecting congestion and underutilization on one or more links associated with an SR tunnel at the LER based on the received link utilization measurements, performing one or more actions at the LER to one or more of alleviate the congestion and re-optimize the underutilization. A state of the SR tunnel is maintained only at the LER through a label stack assigned at the LER, and the label stack includes one or more of a node Segment ID (SID) and an adjacency SID.

Abstract: Systems, methods, and non-transitory computer-readable media for coordinating modifications to a network device configuration (config) are provided. A system, according to one implementation, includes a processing device and a memory device configured to store a computer program having instructions that, when executed, enable the processing device to create a collaboration group including a plurality of contributing members. Each contributing member is adapted to provide proposed changes to a configuration for defining operating parameters of a Network Element (NE) in a network. The contributing members are adapted to provide the proposed changes within a predetermined timeframe.

Abstract: Systems and methods for resolving control conflicts in trunk protection links are provided. A head-end node includes a first line-mux controller and a second line-mux controller, first actuator components for a first fiber span, and second actuator components for a second fiber span, wherein the first line-mux controller and the second line-mux controller are configured to control the first actuator components and the second actuator components, respectively, and a trunk protection switch configured to connect an input to each of the first fiber span and the second fiber span.

Abstract: An optical interface includes circuitry configured to operate the optical interface at a first rate, subsequent to a requirement to subrate the optical interface to a second rate, determine which services are affected, signal a partial failure for the one or more affected services, and operate the optical interface at a second rate that is less than the first rate. The optical interface can be a Flexible Optical (FlexO) or ZR interface.

Abstract: Systems and methods include receiving Operations, Administration, Maintenance, and Provisioning (OAM&P) data from an optical network; providing a Graphical User Interface (GUI) based on the OAM&P data with the GUI including a topology view; and providing a visualization that includes one of a power readings graph, a spectral analysis graph, and a spectral allocation graph, in the GUI, and the visualization is positioned logically next to the topology view.

Abstract: Systems and methods are provided for analyzing one or more root causes of service degradation events in a network or other environment. A method, according to one implementation, includes a step of monitoring a plurality of overlying services offered in an underlying infrastructure having a plurality of resources arranged with a specific topology. In response to detecting a negative impact on the overlying services during a predetermined time window and based on an understanding of the specific topology, the method further includes the step of identifying suspect components from the plurality of resources in the underlying infrastructure. The method also includes the step of obtaining status information with respect to the suspect components to determine a root cause of the negative impact on the overlying services.

Abstract: A network element includes a port; and a device with circuitry configured to encode data for communication to a second device via a plurality of physical channels, and utilize one of the plurality of physical channels as a dedicated timing channel with encoding thereon different from encoding on the other plurality of physical channels, and interface encoded data via the plurality of physical channels with the port for transmission and reception with a second device.

Abstract: Systems and methods for optical fiber characterization using a nonlinear measurement of shaped Amplified Spontaneous Emission (ASE) transmitted over the optical fiber are provided. A method includes receiving an ASE signal on an optical fiber, wherein the ASE signal is transmitted from an ASE source connected to the optical fiber and the ASE signal includes a spectral shape at an input of the optical fiber; measuring a broadened spectral shape of the received ASE signal where the broadened spectral shape is different from the spectral shape at the input and broadened due to propagation of the ASE signal over the optical fiber; and determining one or more parameters of the optical fiber based on the broadened spectral shape of the received ASE signal.

Abstract: Described herein is a fractional phase locked loop with sigma-delta modulator (SDM) quantization noise cancellation. The fractional phase includes a digital filter configured to receive an error signal based on a comparison of a reference clock and a feedback clock, a controlled oscillator configured to generate an output clock by adjusting a frequency of the controlled oscillator based on a control signal output by the digital filter, the feedback clock being based on the output clock, a sigma-delta modulator configured to control division of the output clock to generate a divided output clock which includes a sigma-delta modulator quantization noise and a digital-to-time converter configured to receive a cancellation code from an integrator in the sigma-delta modulator and cancel the sigma-delta modulator quantization noise in the divided output clock with the cancellation code to generate the feedback clock.

Abstract: A combination standoff and LED includes a surface mount solder standoff which can be either threaded or unthreaded, and a surface mount LED disposed and fixed in the center of the base of the standoff. The combination standoff and LED is adapted to receive a lightpipe via the either threaded or unthreaded portion of the surface mount solder standoff. This combination standoff and LED results in a single piece of hardware which simplifies the physical PCBA layout design and removes any Computer Aided Design (CAD) placement errors that would normally be present if two separate hardware components were placed together manually.

Abstract: Systems and methods implemented in a network element in a Segment Routing network include, for a service having two or more candidate paths and responsive to a failure on a current candidate path of the two or more candidate paths, setting an eligibility flag for the current candidate path; and selecting another candidate path of the two or more candidate paths, for the service, based on their eligibility flag.

Abstract: A Printed Circuit Board (PCB) and methods for manufacturing the PCB board are provided. The PCB includes a plurality of layers; a signal pad, at a first layer of the plurality of layers, connected to a signal transmission trace strip line, at a second layer of the plurality of layers, wherein the signal pad is configured to connect to a surface mount Radio Frequency (RF) connector that is configured to interface an RF signal with the signal pad; a PCB ground cage structure through the plurality of layers, surrounding the signal pad; and extended ground reference planes located at the first layer and a third layer of the plurality of layers, wherein the extended ground reference planes extend into a volume of the PCB ground cage structure.

Abstract: An apparatus comprises circuitry configured to generate a predicted error signal by applying to a digital signal a distortion model characterized by parameters configured to model circuit component mismatches in a digital-to-analog converter (DAC), circuitry configured to generate a pre-compensated digital signal using the digital signal and the predicted error signal, and circuitry configured to provide the pre-compensated digital signal to the DAC for conversion into an analog signal.

Abstract: Systems and methods include detecting a fast fiber transient on a span based on analyzing power data, wherein the power data is for any of optical wavelengths of traffic channels, optical service channel (OSC) wavelengths, and telemetry from a network element; and responsive to detecting the fast fiber transient, causing an optical time domain reflectometer (OTDR) trace on the span with a specific configuration based on the fast fiber transient.