Abstract: Systems and methods for adjusting for delay asymmetry between clocks in a communication network. Disclosed systems and methods may adjust data in one or more Sync and Delay Response Messages sent using the Precision Timing Protocol (PTP) based on one or more averages made of timing information in those Sync and Delay Response Messages.

Abstract: In one embodiment, a cable distribution system includes a head end connected to a plurality of customer devices through a transmission network that includes a remote fiber node that converts digital data to analog data suitable for said plurality of customer devices. The remote fiber node includes a processor. The remote fiber node resetting software applications of a control plane of the remote fiber node in a manner free from impacting providing services to the customers as a result of resetting software applications. The remote fiber node executing the reset software applications.

Abstract: A cable distribution system that includes a head end connected to a plurality of customer devices through a transmission network that includes a remote fiber node that converts digital data to analog data suitable for the plurality of customer devices. The remote fiber node includes a processor. The remote fiber node receives a software image containing (i) a hardware image, (ii) a primary boot loader, (iii) a kernel, (iv) a software dataplane for a dataplane, and (v) software applications for a control plane. Based upon the file name of the software image selectively using at least some of (i) a hardware image, (ii) a primary boot loader, (iii) a kernel, (iv) a software dataplane for a dataplane, and (v) software applications for a control plane, in resetting the remote physical device.

Abstract: Devices, systems, and methods for determining adjustments used by an upstream transmitters to set the transmit power of at least one upstream OFDMA channel, where the adjustments are made using calibration values to determine constants in continuous expression of power as a function of frequency, and thereafter using the function to determine the adjustment.

Abstract: Present disclosure describes the techniques for regaining synchronization between the RPD and the PTP server, without resetting RPD, in the event of run time-phase jump experienced at RPD. To do so, said technique discloses identifying a run time phase jump event at a remote Physical device (RPD) and initiating an Upstream Channel Descriptor (UCD) refresh procedure to reconnect the RPD with Precision Time Protocol (PTP) server.

Abstract: In one embodiment, a cable distribution system includes a head end connected to a plurality of customer devices through a transmission network that includes a remote fiber node that converts digital data to analog data suitable for said plurality of customer devices. The remote fiber node includes a processor. The remote fiber node resetting software applications of a control plane of the remote fiber node in a manner free from impacting providing services to the customers as a result of resetting software applications. The remote fiber node executing the reset software applications.

Abstract: Techniques for allocating channel frequencies in remote physical device. The channel frequencies are sorted in a predefined order, wherein each channel frequency has a symbol rate. Further, the channel frequencies are grouped into one or more channel groups, wherein each channel group comprises one or more channel frequencies. The one or more channel groups are prioritized from highest priority to lowest priority. Further, the one or more channel frequencies are allocated starting from highest priority channel group to largest size window based on available slots in the largest size window and till a difference between last channel frequency and first channel frequency falls within frequency span limit of the largest size window. Further, prioritizing and allocating are repeated till remaining one or more channel frequencies of the one or more channel groups are allocated to next available windows or the next available windows are exhausted.

Abstract: In one embodiment, a cable distribution system includes a head end connected to a plurality of customer devices through a transmission network that includes a remote fiber node that converts digital data to analog data suitable for said plurality of customer devices. The remote fiber node includes a processor. The remote fiber node resetting software applications of a control plane of the remote fiber node in a manner free from impacting providing services to the customers as a result of resetting software applications. The remote fiber node executing the reset software applications.

Abstract: An access network can include a plurality of remote nodes connected to a principal controller. The principal controller can experience an event storm when one or more of the plurality of remote nodes report an access network event at the same or substantially the same time. One or more remote nodes can mitigate such an event storm at the principal core by delaying by an event reporting delay the reporting of the access network event to the principal core. The event reporting delay can be based on an event delay policy associated with a given remote node. The even reporting delay can be different for each remote node or a group of remote nodes so that the principal core does not receive reports from the plurality of remote nodes so as to cause an event storm which can negatively impact the access network, one or more network devices, or both.

Abstract: Techniques for allocating channel frequencies in remote physical device. The channel frequencies are sorted in a predefined order, wherein each channel frequency has a symbol rate. Further, the channel frequencies are grouped into one or more channel groups, wherein each channel group comprises one or more channel frequencies. The one or more channel groups are prioritized from highest priority to lowest priority. Further, the one or more channel frequencies are allocated starting from highest priority channel group to largest size window based on available slots in the largest size window and till a difference between last channel frequency and first channel frequency falls within frequency span limit of the largest size window. Further, prioritizing and allocating are repeated till remaining one or more channel frequencies of the one or more channel groups are allocated to next available windows or the next available windows are exhausted.

Abstract: The present disclosure describes techniques for performing a smart tree lookup operation in a balanced tree. The techniques according to the present disclosure comprise identifying at least one data entry to be searched within the balanced tree, extracting a plurality of keys of the balanced tree, determining whether all or a subset of keys of the plurality of keys are required for searching the at least one data entry within the balanced tree, in response to the determination that the subset of keys of the plurality of keys are required for searching the at least one data entry, generating a first compare function for each of the at least one data entry using the subset of keys, and traversing a first path for the at least one data entry based on the first compare function. Accordingly, the techniques of the present disclosure enable efficient balanced tree lookup operation.

Abstract: Present disclosure describes the techniques for regaining synchronization between the RPD and the PTP server, without resetting RPD, in the event of run time-phase jump experienced at RPD. To do so, said technique discloses identifying a run time phase jump event at a remote Physical device (RPD) and initiating an Upstream Channel Descriptor (UCD) refresh procedure to reconnect the RPD with Precision Time Protocol (PTP) server.

Abstract: In one embodiment, a cable distribution system includes a head end connected to a plurality of customer devices through a transmission network that includes a remote fiber node that converts digital data to analog data suitable for said plurality of customer devices. The remote fiber node includes a processor. The remote fiber node resetting software applications of a control plane of the remote fiber node in a manner free from impacting providing services to the customers as a result of resetting software applications. The remote fiber node executing the reset software applications.

Abstract: A cable distribution system that includes a head end connected to a plurality of customer devices through a transmission network that includes a remote fiber node that converts digital data to analog data suitable for the plurality of customer devices. The remote fiber node includes a processor. The remote fiber node receives a software image containing (i) a hardware image, (ii) a primary boot loader, (iii) a kernel, (iv) a software dataplane for a dataplane, and (v) software applications for a control plane. Based upon the file name of the software image selectively using at least some of (i) a hardware image, (ii) a primary boot loader, (iii) a kernel, (iv) a software dataplane for a dataplane, and (v) software applications for a control plane, in resetting the remote physical device.