Abstract: An example method described herein may include transmitting, via an optical fiber and an optical circulator coupled to an optical transceiver, an optical signal. The example method may include receiving transmission data indicative of reception or loss of the optical signal via the optical fiber. The example method may include determining, based on at least the transmission data, fiber data indictive of at least a condition of the optical fiber.

Abstract: Signals used to test for upstream signal leaks in a hybrid fiber-coaxial (HFC) network may be interleaved with client data and strategically timed to be received by a leak detection device with a one-hundred percent probability of intercept. A method includes receiving an indication that a user device is in proximity to a computing device. The method includes determining, based on the indication that the user device is in proximity to the computing device, signal information. The method includes causing, based on the signal information, the user device to output a signal. The method includes determining, based on an indication that the signal was received by the computing device, a location of a network leak.

Abstract: An archive model can be used for managing networked storage of recorded content, such as network DVR (digital video recorder) content. Content may be initially recorded to an active storage device, with individual duplicate copies recorded for each requesting user, and subsequently archived to an archive storage device. For playback, the content can be reconstituted into the active storage device prior to delivery to the requesting user. Content can be predictively reconstituted in anticipation of user needs, and the reconstitution capacity of the system can be dynamically reallocated for load balancing.

Abstract: Cache management techniques are described for a content distribution network (CDN), for example, a video on demand (VOD) system supporting user requests and delivery of video content. A preferred cache size may be calculated for one or more cache devices in the CDN, for example, based on a maximum cache memory size, a bandwidth availability associated with the CDN, and a title dispersion calculation determined by the user requests within the CDN. After establishing the cache with a set of assets (e.g., video content), an asset replacement algorithm may be executed at one or more cache devices in the CDN. When a determination is made that a new asset should be added to a full cache, a multi-factor comparative analysis may be performed on the assets currently residing in the cache, comparing the popularity and size of assets and combinations of assets, along with other factors to determine which assets should be replaced in the cache device.

Abstract: Signals used to test for upstream signal leaks in a hybrid fiber-coaxial (HFC) network may be interleaved with client data and strategically timed to be received by a leak detection device with a one-hundred percent probability of intercept. A method includes receiving an indication that a user device is in proximity to a computing device. The method includes determining, based on the indication that the user device is in proximity to the computing device, signal information. The method includes causing, based on the signal information, the user device to output a signal. The method includes determining, based on an indication that the signal was received by the computing device, a location of a network leak.

Abstract: Systems, apparatuses, and methods are described for synchronization based on time differentials in an access network. A time domain may be established for a virtual service and a remote node. The virtual service may synchronize to a clock associated with the remote node based on a time differential. Various virtual services may maintain their own time domains with remote nodes.

Abstract: Described herein is a system and method for a microservices architecture for dynamic channel migration based on real time traffic load. Traffic loads on a first and second radio frequency (RF) channels used by a transceiver to communicate with a plurality of modem devices may be monitored, where the first RF channel is transmitted at a higher frequency than the second RF channel. Based on the monitored traffic loads of the RF channels, data traffic may be migrated from the first RF channel to the second RF channel. Finally, the plurality of modem devices may be notified of the migration.

Abstract: Systems, apparatuses, and methods are described for synchronization based on time differentials in an access network. A time domain may be established for a virtual service and a remote node. The virtual service may synchronize to a clock associated with the remote node based on a time differential. Various virtual services may maintain their own time domains with remote nodes.

Abstract: A network digital video recording (nDVR) system may take into account the capabilities of a requesting user's local DVR when managing network recordings. The user's local DVR may include a temporary buffer that is normally used to record what the DVR is tuned to, and may be used for local trickplay functionality such as pausing live television. The nDVR features described herein may track the usage of the user's temporary DVR buffer, and use that in determining what to stream in response to a user's playback request. The nDVR system can also determine if the user's local DVR has an unused tuner at a time of a program recording, and can instruct the user's local DVR to also tune to the program.

Abstract: Described herein is a system and method for a microservices architecture for dynamic channel migration based on real time traffic load. Traffic loads on a first and second radio frequency (RF) channels used by a transceiver to communicate with a plurality of modem devices may be monitored, where the first RF channel is transmitted at a higher frequency than the second RF channel. Based on the monitored traffic loads of the RF channels, data traffic may be migrated from the first RF channel to the second RF channel. Finally, the plurality of modem devices may be notified of the migration.

Abstract: Signals used to test for upstream signal leaks in a hybrid fiber-coaxial (HFC) network may be interleaved with client data and strategically timed to be received by a leak detection device with a one-hundred percent probability of intercept. A method includes receiving an indication that a user device is in proximity to a computing device. The method includes determining, based on the indication that the user device is in proximity to the computing device, signal information. The method includes causing, based on the signal information, the user device to output a signal. The method includes determining, based on an indication that the signal was received by the computing device, a location of a network leak.

Abstract: Techniques for encrypting content in a content distribution network are disclosed. The content distribution network may comprise a number of national and local sites, and a number of hubs at each local sites. A content segment encrypting device may be operative at a local site to encrypt and cache segments of content. The segment encrypting device may provide the segments to streaming devices that encode content for delivery downstream to network or user devices.

Abstract: Supporting a scalable and Highly Available (HA) service platform. The service platform may be a virtual Cable Modem Termination System (vCMTS), a Passive Optical Network (PON), or a Broadband Network Gateway (BNG). A software component receives, from the service platform, an update about a particular unit of equipment, such as a cable modem (CM), Optical Network Unit (ONU)/Optical Network Terminal (ONT), or customer premises equipment (CPE). In response to receiving the update, the software component provides, to at least one edge router, route data for the particular unit of equipment. The route data informs the edge router of a next hop network address for a network address of the unit of equipment. The edge router is not and need not be provided with either (a) any Address Resolution Protocol (ARP) data for the particular unit of equipment and (b) any Neighbor Discovery (ND) data for the particular unit of equipment.

Abstract: Ensuring the high availability of a Passive Optical Network (PON). A broadband network architecture comprises (a) at least a portion of optical fiber in a communication path to individual subscriber premises, (b) one or more software-implemented Optical Line Terminal (OLT) Controllers, (c) one or more software-implemented Service Provisioning Applications (SPAs), and (d) one or more software-implemented Broadband Network Gateways (BNGs). Each of the one or more OLT Controllers, one or more SPAs, and one or more BNGs execute on Commercial Off-the-Shelf (COTS) computer systems and entirely upon a plurality of protection groups. Each of the plurality of protection groups consists of a plurality of pods. The pods in a particular protection group which are active are dynamically adjusted to ensure the high availability of the broadband network architecture.

Abstract: Signals used to test for upstream signal leaks in a hybrid fiber-coaxial (HFC) network may be interleaved with client data and strategically timed to be received by a leak detection device with a one-hundred percent probability of intercept. A method includes receiving an indication that a user device is in proximity to a computing device. The method includes determining, based on the indication that the user device is in proximity to the computing device, signal information. The method includes causing, based on the signal information, the user device to output a signal. The method includes determining, based on an indication that the signal was received by the computing device, a location of a network leak.

Abstract: Described herein is a system and method for a microservices architecture for dynamic channel migration based on real time traffic load. Traffic loads on a first and second radio frequency (RF) channels used by a transceiver to communicate with a plurality of modem devices may be monitored, where the first RF channel is transmitted at a higher frequency than the second RF channel. Based on the monitored traffic loads of the RF channels, data traffic may be migrated from the first RF channel to the second RF channel. Finally, the plurality of modem devices may be notified of the migration.

Abstract: Ensuring the high availability of a Passive Optical Network (PON). A broadband network architecture comprises (a) at least a portion of optical fiber in a communication path to individual subscriber premises, (b) one or more software-implemented Optical Line Terminal (OLT) Controllers, (c) one or more software-implemented Service Provisioning Applications (SPAs), and (d) one or more software-implemented Broadband Network Gateways (BNGs). Each of the one or more OLT Controllers, one or more SPAs, and one or more BNGs execute on Commercial Off-the-Shelf (COTS) computer systems and entirely upon a plurality of protection groups. Each of the plurality of protection groups consists of a plurality of pods. The pods in a particular protection group which are active are dynamically adjusted to ensure the high availability of the broadband network architecture.

Abstract: Supporting a scalable and Highly Available (HA) service platform. The service platform may be a virtual Cable Modem Termination System (vCMTS), a Passive Optical Network (PON), or a Broadband Network Gateway (BNG). A software component receives, from the service platform, an update about a particular unit of equipment, such as a cable modem (CM), Optical Network Unit (ONU)/Optical Network Terminal (ONT), or customer premises equipment (CPE). In response to receiving the update, the software component provides, to at least one edge router, route data for the particular unit of equipment. The route data informs the edge router of a next hop network address for a network address of the unit of equipment. The edge router is not and need not be provided with either (a) any Address Resolution Protocol (ARP) data for the particular unit of equipment and (b) any Neighbor Discovery (ND) data for the particular unit of equipment.

Abstract: Signals used to test for upstream signal leaks in a hybrid fiber-coaxial (HFC) network may be interleaved with client data and strategically timed to be received by a leak detection device with a one-hundred percent probability of intercept. A method includes receiving an indication that a user device is in proximity to a computing device. The method includes determining, based on the indication that the user device is in proximity to the computing device, signal information. The method includes causing, based on the signal information, the user device to output a signal. The method includes determining, based on an indication that the signal was received by the computing device, a location of a network leak.

Abstract: Techniques for encrypting content in a content distribution network are disclosed. The content distribution network may comprise a number of national and local sites, and a number of hubs at each local sites. A content segment encrypting device may be operative at a local site to encrypt and cache segments of content. The segment encrypting device may provide the segments to streaming devices that encode content for delivery downstream to network or user devices.