Abstract: An example method for interference suppression in full duplex cable network environments is provided and includes providing a baseband (BB) reference signal on a first pathway to a signal processor, converting the BB reference signal to a first radio frequency (RF) signal, transmitting the first RF signal on the first pathway, the first RF signal being reflected back on a second pathway, receiving a second RF signal on the second pathway, the second RF signal including interferences from the reflections, generating an RF reference signal based on signals on the first pathway, providing the RF reference signal to the signal processor, providing the second RF signal to the signal processor, and reducing, by the signal processor, interferences in the second RF signal from reflections of the first RF signal based on the BB reference signal and the RF reference signal.

Abstract: An example method for characterizing interference relationships in full duplex cable network environments is provided and includes generating a global interfered list for a plurality of cable modems in the cable network and for a plurality of frequency ranges, generating a global interfering list for the plurality of cable modems and for the plurality of frequency ranges, assigning respective downstream reception frequency ranges and upstream transmission frequency ranges for the plurality of cable modems based on the global interfered list and the global interfering list, and transmitting to the cable modems corresponding assignment information comprising the respective assigned downstream reception frequency ranges and upstream transmission frequency ranges.

Abstract: An example system and method for facilitating communication with segment routing in a cable modem network environment is provided and includes receiving, at a remote physical device (RPD) in a network, a PW control packet including segment routing information including a PW segment identifier (PW SID) for establishing a data session between the RPD and a network element over a packet switched network, the PW SID indicative of a segment in the packet switched network to be used for communicating PW data packets of the data session, the PW control packet and the PW data packets being emulations of a point-to-point connection between the RPD and the network element, and writing into a segment table of the RPD a mapping between the PW SID and the data session. In specific embodiments, the network element comprises a Converged Cable Access Platform (CCAP) Core of a cable network.

Abstract: An example system and method for facilitating virtual cable modem termination system (VCMTS) migration in cable modem network environments is provided and includes spawning, by an orchestration component executing using a processor, a first instance of a virtual network function (VNF) on a first server in a cable modem network, storing state of the first instance as state information in an external database, spawning a second instance of the VNF on a different second server, synchronizing state of the second instance with the state information stored in the external database, and deleting the first instance. In specific embodiments, the VNF comprises a VCMTS.

Abstract: An example system and method for facilitating virtual cable modem termination system VCMTS redundancy in cable modem network environments is provided and includes spawning a first instance of a virtual network function (VNF) on a first server in a cable modem network, spawning a second instance of the VNF on a different second server, configuring the second instance to be communicatively coupled to the first instance in a same subnet of the network, and synchronizing (e.g., copying, coordinating, matching, etc.) state between the first instance and the second instance. In specific embodiments, the VNF comprises a VCMTS.

Abstract: A method, a system, and an apparatus provide for a cable modem termination system (CMTS). The CMTS may include a virtual machine configured to provide a plurality of virtual CMTSs (vCMTSs). The CMTS may also include a plurality of subscriber groups. Each subscriber group of the plurality of subscriber groups may be assigned to a vCMTS of the plurality of vCMTSs. Additionally, each vCMTS is configured to provide a process.

Abstract: A method in an example embodiment can include polling a first cable modem in a cable network and receiving a first response message from the first cable modem identifying a downstream frequency detected by the first cable modem. The method further includes determining the downstream frequency is split between at least two fiber nodes and determining a cable modem termination system (CMTS) service group topology, where the topology includes the at least two fiber nodes. In specific embodiments, determining that the downstream frequency is split is based on at least the first response message from the first cable modem and a second response message from a second cable modem. In more specific embodiments, the method includes constructing a hybrid fiber-coaxial (HFC) topology map of the cable network based on at least the first and second response messages, where the HFC topology map indicates the CMTS service group topology.

Abstract: A method, a system, and an apparatus provide for a cable modem termination system (CMTS). The CMTS may include a virtual machine configured to provide a plurality of virtual CMTSs (vCMTSs). The CMTS may also include a plurality of subscriber groups. Each subscriber group of the plurality of subscriber groups may be assigned to a vCMTS of the plurality of vCMTSs. Additionally, each vCMTS is configured to provide a process.

Abstract: Techniques are provided for enabling multicast traffic for a Cable Modem Termination System (CMTS) Modular Headend Architecture (MHA) system. The techniques allow a single modular CMTS core Media Access Control (MAC) domain to service a plurality of physical layer devices. When combined with an independent control plane, Downstream External physical layer (PHY) Interface (DEPI), and Upstream External physical layer (PHY) Interface (UEPI), a downstream PHY device becomes a completely independent and scalable network element.

Abstract: A method is provided in one example and includes creating a plurality of profiles that describe one or more downstream modulations for each data-subcarrier in a channel to be used by a plurality of cable modems; receiving at least one testing measurement from the plurality of cable modems; and assigning a selected one of the plurality of profiles to each of the plurality of cable modems based, at least in part, on the one testing measurement that was received.

Abstract: An accurate non-Data Over Cable Service Interface Specification (non-DOCSIS) clock signal is generated at the downstream output of a DOCSIS network. In one example method, a downstream DOCSIS Timing Protocol (DTP) client in the DOCSIS network is frequency synchronized to an upstream DTP server in the DOCSIS network. DOCSIS timing information, along with one or more timing correction factors received at the DTP client, is used to time synchronize the DTP client to the DTP server. Based on the time and frequency synchronization between the DTP server and the DTP client, the clock signal is generated at the output of the DTP client in accordance with the non-DOCSIS timing protocol.

Abstract: Previously known network management methods are incapable of concertedly managing respective levels of perceptual playback quality of media content data for a number client devices. In particular, previously known methods fail to regulate ABR-enabled client devices and the like that are each operating to individually consume as much of one or more shared network resources as possible without regard to the degree performance improvements. By contrast, various implementations disclosed herein provide network-centric concerted management of respective levels of perceptual playback quality of media content data on each of a number of client devices. The respective levels perceptual playback quality are concertedly managed by adjusting one or more shared network resources (e.g., bandwidth, processor time, memory, etc.).

Abstract: Techniques are provided for controlling downstream Converged Cable Access Platform (CCAP) access points or other devices using a Generic Control Protocol (GCP). At the CCAP access point having a network interface and a coaxial interface, GCP control plane information is received from a Cable Modem Termination System (CMTS) via the network interface, where the control plane information is designed to configure the CCAP access point to enable communication over the network interface and the coaxial interface. GCP can be used to send data structures and register control messages across a network to embedded devices.

Abstract: Techniques are provided for controlling downstream Converged Cable Access Platform (CCAP) access points. At the CCAP access point having a network interface and a coaxial interface, control plane information is received from a Cable Modem Termination System (CMTS) via the network interface, where the control plane information is designed to configure the CCAP access point to enable communication over the network interface and the coaxial interface. At the CCAP access point, data plane and control plane information is received from the CMTS, and the data plane information transmitted via the coaxial interface to one or more customer termination devices.

Abstract: Techniques are provided for up-converting a downstream set-top box control signal to a frequency that is above a cable television system upstream communications band. The downstream set-top box control signal is down-converted to a frequency in a set-top box control band and injected into a set-top box communications pathway. The downstream set-top box control signal may be up-converted from baseband or from the set-top box control band to a frequency in cable television system downstream communications band and transmitted on a DOCSIS RF channel.

Abstract: A method is provided in one example and includes segmenting a plurality of cable modems into a plurality of groups; identifying traffic being received or transmitted by each of the plurality of cable modems that is below a threshold; and determining whether to move each of the plurality of cable modems into a low-power mode based, at least in part, on the traffic being received or transmitted by each of the plurality of cable modems.

Abstract: A method is provided in one example and includes creating a plurality of profiles that describe one or more downstream modulations for each data-subcarrier in a channel to be used by a plurality of cable modems; receiving at least one testing measurement from the plurality of cable modems; and assigning a selected one of the plurality of profiles to each of the plurality of cable modems based, at least in part, on the one testing measurement that was received.

Abstract: A method is provided in one example and includes generating one or more message blocks to be propagated along a narrow-band channel, wherein the message blocks are sub-components of a Physical Link Channel (PLC) frame; and communicating the PLC frame from a cable modem termination system (CMTS) to one or more cable modems.

Abstract: An access point that supports downstream and upstream communication from and to a Modular Cable Modem Termination System (M-CMTS) core to and from customer premises equipment (CPE), respectively, implements an Upstream External PHY Interface (UEPI) protocol with the M-CMTS core for control of the upstream communication. The access point receives from the M-CMTS core first UEPI control messages comprising information to configure one or more pathways with the access point for data plane upstream communication and control plane communication. The access point transmits to the M-CMTS core second UEPI control messages including a spectrum management message to manage upstream spectrum between the access point and the M-CMTS core, and a range request message to request ranging information so that the CPE can transmit upstream packets within an upstream timeslot, wherein at least one second UEPI control message is forwarded from the (CPE).

Abstract: An example method for Downstream External Physical Interface (DEPI) in Data Over Cable Service Interface Specification (DOCSIS) 3.1 network environments is provided and includes generating, at a Converged Cable Access Platform (CCAP) core, a DEPI-Packet Streaming Protocol (PSP) pseudo-wire (PW) packet including a PSP sub-layer header having a same length for a Quadrature Amplitude Modulation (QAM) channel and an Orthogonal Frequency-Division Multiplexing (OFDM) channel in the DOCSIS network environment, and transmitting the DEPI-PSP PW packet over a DEPI interface to a remote physical layer (R-PHY) entity.