A system for efficient boot logging in embedded systems that records boot event logs and failure operation logs in flash storage and optimizing write operations for longevity. Defined regions in flash reserve space for data blocks organized into fixed sizes. Logs are appended by locating free blocks without erase operations. A state machine limits logging duplicate failure events. The system comprises a boot loader, flash memory, and logic to manipulate data regions. The method manages defined flash regions, locates free blocks, writes record headers and log payloads, and updates record states when logging repetitive failures. Binary search algorithms efficiently find last written blocks. Embodiments can be used for embedded systems that use boot loaders to initialize system hardware and load operating systems.
A fast, scalable network connector that reliably and instantly creates link connections between management control plane and network device data plane nodes. A central database persists node states and provides a global connectivity view for system recovery. A master scheduler selects, prioritizes, and dispatches re-connect tasks. A multi-layer, elastic worker scheduler concurrently performs actual connection tasks through a socket I/O layer to the network nodes. The worker scheduler is scaled up or down as needed by the master scheduler. A feedback learner gathers information about node states and connectivity to provide insights that inform the scaling of the worker scheduler and scheduling of the re-connect tasks.
H04L 41/0663 - Gestion des fautes, des événements, des alarmes ou des notifications en utilisant la reprise sur incident de réseau en réalisant des actions prédéfinies par la planification du basculement, p. ex. en passant à des éléments de réseau de secours
H04L 47/56 - Ordonnancement des files d’attente en implémentant un ordonnancement selon le délai
H04L 47/6275 - Ordonnancement des files d’attente caractérisé par des critères d’ordonnancement pour des créneaux de service ou des commandes de service basé sur la priorité
Systems and techniques for are described herein. An optical signal is received and the optical signal is converted into an electrical signal. The electrical signal is amplified through a trans-impedance amplifier to produce an amplified signal. The amplified signal is normalized using a limit amplifier to generate a normalized signal. Bit values are determined from the normalized signal and a corresponding probability bit is generated for each bit value using a threshold detector. The bit values and the corresponding probability bit are encoded into a four-level pulse-amplitude modulation (PAM-4) signal. The PAM-4 signal is transmitted to an application-specific integrated circuit (ASIC) for data recovery and error correction processing.
H04L 1/00 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue
H04B 10/079 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant des mesures du signal de données
H04L 25/49 - Circuits d'émissionCircuits de réception à conversion de code au transmetteurCircuits d'émissionCircuits de réception à pré-distorsionCircuits d'émissionCircuits de réception à insertion d'intervalles morts pour obtenir un spectre de fréquence désiréCircuits d'émissionCircuits de réception à au moins trois niveaux d'amplitude
4.
ROLE-BASED ACCESS CONTROL SYSTEM FOR REMOTE NETWORK SERVICES
The disclosure provides an approach for role-based access control for remote network services. Embodiments include initiating, by a network element in a network, a connection to a service provider system outside of the network. Embodiments include receiving, by the network element from the service provider system via the connection in response to the initiating, a login request comprising a user identifier. Embodiments include determining, by the network element, one or more permissions associated with a role corresponding to the user identifier. Embodiments include approving, blocking, or delaying approval of the login request, by the network element, based on the one or more permissions.
H04L 43/08 - Surveillance ou test en fonction de métriques spécifiques, p. ex. la qualité du service [QoS], la consommation d’énergie ou les paramètres environnementaux
H04L 67/141 - Configuration des sessions d'application
5.
Subscriber sharding across a broadband network gateway (BNG) cluster using a policy-driven load balancer
A central management component deployed in a cluster of broadband network gateways (BNGs) balances load among subscribers through the cluster by monitoring subscriber states comprising usage of the BNGs based on load parameters to detect an overload condition on any BNG. In the event of an overload condition, the component performs a horizontal sharding operation to move at least some access load from the overloaded BNG to an underutilized BNG. Sharding separates a large group of BNGs into smaller and more numerous BNGs by reassigns one or more subscribers among the gateways. A load balancer applies rules to re-direct traffic based on a defined load balancing rule using one of: preference, present load, proximity, and operating characteristic.
Systems and techniques for conditional codeword decoding using packet headers are described herein. A data payload is received. Parity data is removed from the data payload to generate a codeword dataset. Frames are identified in the codeword dataset. Headers of the frames are evaluated to identify port identifiers for the frames. A conditional decoding map is generated based on the port identifiers. The decoding map is transmitted to a conditional decoder to decode codewords included in the conditional decoding map.
A network system can include a memory and processing circuitry, in communication with the memory, configured to: grant a client device access to a first network; determine that the client device has received authentication credentials for a second network; in response to determining that the client device has received the authentication credentials for the second network, prevent the client device from reconnecting to the first network; and cause the client device to disconnect from the first network.
Systems and techniques for forward error correction decode processing power reduction are described herein. A capacity of a network slice is determined for a user network interface (UNI) based on a subset of forward error correction (FEC) codewords to be decoded by the media access control processor. A number of decoder cores is calculated to decode the capacity of the network slice. A utilization value is determined for a decoder core. A decoder utilization value is calculated for the decoder cores using the utilization value a number of decoding iterations. A non-decoding media access control processor utilization value is obtained for the network slice. A geometry is calculated for the media access control processor using the number of decoder cores, the decoder utilization value, and the non-decoding media access control processor utilization value. A media access control processor manufacturing specification data is generated based on the calculated geometry.
Systems and techniques for forward error correction decode processing power reduction are described herein. A capacity of a network slice is determined for a user network interface (UNI) based on a subset of forward error correction (FEC) codewords to be decoded by the media access control processor. A number of decoder cores is calculated to decode the capacity of the network slice. A utilization value is determined for a decoder core. A decoder utilization value is calculated for the decoder cores using the utilization value a number of decoding iterations. A non-decoding media access control processor utilization value is obtained for the network slice. A geometry is calculated for the media access control processor using the number of decoder cores, the decoder utilization value, and the non-decoding media access control processor utilization value. A media access control processor manufacturing specification data is generated based on the calculated geometry.
Systems and techniques for forward error correction decode processing power reduction are described herein. A first codeword is identified in a network transmission. A conditional decoding window is generated that begins with the first codeword. The conditional decoding window is aligned with a frame of the network transmission. A report is generated that includes an indication of relevance of the conditional decoding window to a network device. The conditional decoding window and the report are transmitted to the network device. A conditional decoding window is received that includes a first codeword. The first codeword is decoded to determine a second codeword. A report is obtained that includes a codeword relevance bit for the second codeword. Upon a determination that the codeword relevance bit indicates that the second codeword is irrelevant, the second codeword is discarded without decoding the second codeword.
Systems and techniques for laser transmitter characterization for accurate laser aging are described herein. A set of bias current-temperature pairs is collected for a laser diode. A bias current-temperature curve is calculated for the laser diode using the set of bias current-temperature pairs. A timestamp is assigned to the bias current-temperature curve. The bias current-temperature curve and the timestamp are stored in a non-volatile memory device communicatively coupled to a laser device that includes the laser diode. The bias current-temperature curve and the timestamp are transmitted to a cloud-based storage facility.
H04B 10/079 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant des mesures du signal de données
Systems and techniques for distributed broadband network gateway for maximizing IPv4 address utilization. A dynamic host configuration protocol (DHCP) offer message is received by a distributed broadband network gateways (BNG) connected to a network. The DHCP offer message may have been forwarded from a DHCP server. The DHCP offer message is modified to replace an option 1 subnet mask with a 32-bit subnet mask and replace an option 3 router address with an internet protocol address of the distributed BNG to create a modified offer message. The modified offer message is transmitted to a user computing device. A route with a 32-bit subnet mask for the user computing device is advertised to other routers internal to the network of the broadband service provider.
H04L 45/741 - Routage dans des réseaux avec plusieurs systèmes d'adressage, p. ex. avec IPv4 et IPv6
H04L 61/5014 - Adresses de protocole Internet [IP] en utilisant le protocole de configuration dynamique de l'hôte [DHCP] ou le protocole d'amorçage [BOOTP]
H04Q 11/00 - Dispositifs de sélection pour systèmes multiplex
13.
Forward error correction decode processing power reduction
Systems and techniques for forward error correction decode processing power reduction are described herein. A first codeword is identified in a network transmission. A conditional decoding window is generated that begins with the first codeword. The conditional decoding window is aligned with a frame of the network transmission. A report is generated that includes an indication of relevance of the conditional decoding window to a network device. The conditional decoding window and the report are transmitted to the network device. A conditional decoding window is received that includes a first codeword. The first codeword is decoded to determine a second codeword. A report is obtained that includes a codeword relevance bit for the second codeword. Upon a determination that the codeword relevance bit indicates that the second codeword is irrelevant, the second codeword is discarded without decoding the second codeword.
A system for interference detection includes one or more processors are configured to receive from one or more access points within a wireless network information indicative of airtime usage of one or more client devices associated with the one or more access points, determine an amount of total interference for at least one of the access points on a first channel, the total interference including foreign interference and in-network interference, determine a correlation between the total interference and the airtime usage of the one or more client devices, determine an amount of the foreign interference or an amount of the in-network interference based on the correlation, and selectively switch the at least one of the access points from communicating on the first channel to communicating on a second channel based on the determined amount of the foreign interference or the determined amount of the in-network interference.
H04W 36/20 - Exécution d'une resélection à des fins spécifiques pour optimiser le niveau d’interférence
H04L 5/00 - Dispositions destinées à permettre l'usage multiple de la voie de transmission
H04W 36/06 - Resélection d'une ressource de communication au point d'accès serveur
H04W 72/0453 - Ressources du domaine fréquentiel, p. ex. porteuses dans des AMDF [FDMA]
H04W 72/541 - Critères d’affectation ou de planification des ressources sans fil sur la base de critères de qualité en utilisant le niveau d’interférence
15.
NETWORK CONFIGURATION FOR POLICY COMPLIANT SPANNING TREE
A communication system memory configured to store a network policy, and a network controller, implemented in circuitry, coupled to the memory and configured to: determine a first set of communication paths established by implementation of a spanning tree protocol, in a first instance, in a network of one or more satellite devices, determine that a second set of communication paths is more aligned with the network policy than the first set of communication paths, and output, based on the determination that the second set of communication paths is more aligned with the network policy than the first set of communication paths, one or more commands to modify usage of at least one communication port of at least one satellite device to cause a second instance of implementation of the spanning tree protocol to establish the second set of communication paths in the network.
An access point for interference detection includes memory configured to store information identifying one or more non-associated client devices that are not configured to communicate with the access point, and one or more processors, implemented in circuitry, coupled to the memory and configured to: determine that communication signals outputted from a non-associated client device to another access point or from the other access point to the non-associated client device are being received by the access point based on the stored information, determine an amount of in-network interference being generated by the communication signals based at least in part on the determination that the communication signals from the non-associated client device or from the other access point are being received by the access point, and output interference information based on the determined amount of in-network interference.
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Providing online non-downloadable telecommunications software for the transmission, routing, and switching of video, data and voice over telecommunications networks; Providing online non-downloadable software for the operation, management, provisioning, analysis, and troubleshooting of telecommunications networks; Providing online non-downloadable computer operating system software}; Providing temporary use of non-downloadable cloud-based software for the transmission, routing, and switching of video, data and voice over telecommunications networks; Providing temporary use of non-downloadable cloud-based software for the operation, management, provisioning, analysis, and troubleshooting of telecommunications networks; Providing temporary use of on-line non-downloadable cloud computing software for the transmission, routing, and switching of video, data and voice over telecommunications networks; Providing temporary use of on-line non-downloadable cloud computing software for the operation, management, provisioning, analysis, and troubleshooting of telecommunications networks; Software as a service (SAAS) services featuring software for the transmission, routing, and switching of video, data and voice over telecommunications networks; Software as a service (SAAS) services featuring software for the operation, management, provisioning, analysis, and troubleshooting of telecommunications networks; Platform as a service (PAAS) featuring computer software platforms for the transmission, routing, and switching of video, data and voice over telecommunications networks; Platform as a service (PAAS) featuring computer software platforms for the operation, management, provisioning, analysis, and troubleshooting of telecommunications networks
09 - Appareils et instruments scientifiques et électriques
Produits et services
Telecommunications hardware and downloadable software used by broadband service providers for enabling the provision of wireless broadband communication, online network security, parental control capabilities, and online camera capabilities; Downloadable mobile application software for use in monitoring and managing an on-premises local area computer networks and wide area computer networks, managing, controlling, and operating devices connected to on-premises local area networks and wide area computer networks; Hardware networking and wireless gateways routers, both indoor and outdoor hardened units; Downloadable computer operating system software; and Downloadable cloud-computing operating system software.
19.
Physical layer rate estimates in wireless communication systems
A wireless system includes memory configured to store information of physical layer rates associated with power levels between a client device and respective access points. The power levels comprise information of amounts of power in signals received by the client device from the respective access points. The system includes one or more processors configured to: during a communication session between the client device and a first access point, determine a current power level between the client device and a second access point, access the information based on the current power level to determine an expected physical layer rate between the client device and the second access point, determine a current physical layer rate between the client device and the first access point, and determine whether to switch the communication session to the second access point based on the expected physical layer rate and the current physical layer rate.
Systems and techniques for increasing wireless network performance using contextual fingerprinting are described herein. Performance metrics may be obtained for a client device-access radio pair that includes a wireless network interface of a client device and an access radio of a wireless network associated with the client device. A fingerprint may be generated for the client device-access radio pair. The fingerprint may be stored in a fingerprint store for the wireless network.
G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques
Embodiments include an automatic set top box placement (STB) process and system that balances video playback needs against the performance characteristics of individual devices and the communications system. For video playback, this involves maintaining required sustained data rates needed to support video of various levels of quality and resolution and matching these against the capacity of the Wi-Fi system in terms of channel capacity and gateway/Access Point to STB connection quality. An intelligent network controller calculates the STB total airtime. Each STB is associated with a Service Set Identifier (SSID) that the controller uses to identify the STB clients. The controller calculates the End-to-End PHY rates for each client. The total STB airtime can then be calculated and compared to the default allocation for the STBs. Recommendations regarding moving STBs, gateways, and or satellite/booster devices can then be provided to the user.
H04N 21/442 - Surveillance de procédés ou de ressources, p. ex. détection de la défaillance d'un dispositif d'enregistrement, surveillance de la bande passante sur la voie descendante, du nombre de visualisations d'un film, de l'espace de stockage disponible dans le disque dur interne
H04N 21/2385 - Allocation de canauxAllocation de bande passante
H04N 21/61 - Structure physique de réseauTraitement de signal
H04N 21/4363 - Adaptation du flux vidéo à un réseau local spécifique, p. ex. un réseau Bluetooth®
A system for interference detection includes one or more processors are configured to receive from one or more access points within a wireless network information indicative of airtime usage of one or more client devices associated with the one or more access points, determine an amount of total interference for at least one of the access points on a first channel, the total interference including foreign interference and in-network interference, determine a correlation between the total interference and the airtime usage of the one or more client devices, determine an amount of the foreign interference or an amount of the in-network interference based on the correlation, and selectively switch the at least one of the access points from communicating on the first channel to communicating on a second channel based on the determined amount of the foreign interference or the determined amount of the in-network interference.
H04W 36/20 - Exécution d'une resélection à des fins spécifiques pour optimiser le niveau d’interférence
H04L 5/00 - Dispositions destinées à permettre l'usage multiple de la voie de transmission
H04W 36/06 - Resélection d'une ressource de communication au point d'accès serveur
H04W 72/0453 - Ressources du domaine fréquentiel, p. ex. porteuses dans des AMDF [FDMA]
H04W 72/541 - Critères d’affectation ou de planification des ressources sans fil sur la base de critères de qualité en utilisant le niveau d’interférence
09 - Appareils et instruments scientifiques et électriques
Produits et services
Telecommunications hardware and downloadable software used by broadband service providers for enabling the provision of wireless broadband communication, online network security, parental control capabilities, and online camera capabilities; Downloadable mobile application software for use in monitoring and managing an on-premises computer network and managing, controlling and operating devices connected to an on-premises computer network; Hardware networking and wireless gateways routers, both indoor and outdoor hardened units; and Downloadable computer operating system software; Downloadable cloud-computing software for monitoring computer network performance
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Telecommunications non-downloadable software used by broadband service providers to deliver and manage residential, business and town services in the nature of enabling the provision of wireless broadband communication, online network security, parental control capabilities, and online camera capabilities; Providing temporary use of on-line nondownloadable software for use in monitoring and managing an on-premises computer network and managing, controlling and operating devices connected to an on premises computer network; cloud services, namely, providing temporary use of on-line non-downloadable cloud computing software to monitor, operate, support, and market managed broadband provider services; non-downloadable computer operating system software; and Platform as a service (PAAS) featuring computer software platforms for monitoring computer network performance
(1) Telecommunication services, namely, providing internet access via broadband optical or wireless networks; telecommunication services, namely, providing Internet access via wireless broadband networks; providing multiple user wireless access to the internet; providing telecommunication connections to the Internet for streaming of audio and video content via the internet, other computer networks, wireless networks and electronic communication networks; telecommunication services, namely, providing multiple user access to a global computer network for communities to connect to shared wifi in neighborhoods, on campuses and public community spaces
Telecommunication services, namely, providing internet access via broadband optical or wireless networks; telecommunication access services; providing multiple user wireless access to the internet; provision of connectivity services and access to electronic communications networks for transmission or reception of audio, video or multimedia content, namely, internet broadcasting services; telecommunication services, namely, providing multiple-user access to a global computer network for communities to connect to shared wireless high-speed Internet access in neighborhoods, on campuses and public community spaces
09 - Appareils et instruments scientifiques et électriques
Produits et services
Computer hardware for telecommunications, namely, wireless routers, computer network routers, and wireless networking apparatus in the nature of gateway routers, business network routers, firewall network routers, wireless controllers to monitor and control the functioning of other electronic devices, wireless local area networking hardware, wireless network transmitters and receivers, wireless network repeaters, and wireless network extenders; computer hardware, namely, wireless access point (WAP) devices; LAN (local area network) access points for connecting network computer users; computer network switches, namely, managed switches, and smart switches
Techniques are described for configuring an optical network unit (ONU) in a pre-burst state prior to transitioning the ONU to a burst-on state. During the pre-burst state, a laser emitter of the ONU stabilizes to its wavelength, thereby reducing the impact of wavelength drift when the ONU transitions to the burst-on state.
Systems and techniques for location independent website filtering using bifurcated domain name system are described herein. A domain name system (DNS) request may be received. A unique device identifier may be received for the requesting device. The ISP may provide external network services to the services gateway. The DNS service provider may maintain a website filtering policy. The DNS request may be forwarded to the DNS service of the ISP. The DNS service of the ISP may respond with a DNS resolution. An access control request may be forwarded to the DNS service provider external to the ISP. A website filtering policy associated with the device identifier may be used to determine website access. The DNS service provider external to the ISP may respond with a grant/block status. Based on the returned grant/block status, the services gateway may respond to the requesting device with the DNS resolution or access denial.
H04L 61/4511 - Répertoires de réseauCorrespondance nom-adresse en utilisant des répertoires normalisésRépertoires de réseauCorrespondance nom-adresse en utilisant des protocoles normalisés d'accès aux répertoires en utilisant le système de noms de domaine [DNS]
H04L 67/60 - Ordonnancement ou organisation du service des demandes d'application, p. ex. demandes de transmission de données d'application en utilisant l'analyse et l'optimisation des ressources réseau requises
H04L 67/02 - Protocoles basés sur la technologie du Web, p. ex. protocole de transfert hypertexte [HTTP]
H04L 67/10 - Protocoles dans lesquels une application est distribuée parmi les nœuds du réseau
H04L 101/622 - Adresses de couche 2, p. ex. adresses de contrôle d'accès au support [MAC]
H04L 61/2514 - Traduction d'adresses de protocole Internet [IP] entre adresses IP locales et globales
Techniques are described for configuring an optical network unit (ONU) in a pre-burst state prior to transitioning the ONU to a burst-on state. During the pre-burst state, a laser emitter of the ONU stabilizes to its wavelength, thereby reducing the impact of wavelength drift when the ONU transitions to the burst-on state.
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Providing online non-downloadable software accessible through a mobile device for use in monitoring and managing an on-premises network and managing, controlling and operating devices connected to an on-premises network; Providing online non-downloadable software accessible through a mobile device for use in providing virus and malware management, intrusion prevention and website protection in an on-premises network
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Providing online non-downloadable software accessible through a mobile device for use in monitoring and managing an on-premises network and managing, controlling and operating devices connected to an on-premises network; Providing online non-downloadable software accessible through a mobile device for use in providing virus and malware management, intrusion prevention and website protection in an on-premises network
09 - Appareils et instruments scientifiques et électriques
Produits et services
downloadable software in the nature of a mobile application for use in monitoring and managing an on-premises network and managing, controlling and operating devices connected to an on-premises network
A method of virtually bonding together at least two physical channels in an optical network terminal (ONT) of a passive optical network (PON) can include receiving, via the ONT, a plurality of frames from a network device, classifying, using a processor of the ONT, the plurality of frames into one of a plurality of services, assigning the service to the at least two physical channels of the ONT, wherein each of the at least two physical channels is associated with a respective laser of the ONT to transmit at a respective wavelength, and transmitting, toward an optical line terminal, the plurality of frames of the service using at least one of the at least two physical channels during an assigned time slot.
H04L 12/28 - Réseaux de données à commutation caractérisés par la configuration des liaisons, p. ex. réseaux locaux [LAN Local Area Networks] ou réseaux étendus [WAN Wide Area Networks]
H04Q 11/00 - Dispositifs de sélection pour systèmes multiplex
H04L 12/743 - Traitement de l'adressage d’en-tête pour le routage, p.ex. table de correspondance par des techniques de hachage
38.
Methods and apparatus for improving reliability of an optical device using auxiliary lasers in a photonic integrated circuit
An optical device having a self-repair component capable of curing a defective component(s) is disclosed. To improve reliability as well as manufacturing yield, a photonic integrated circuit (“PIC”) for as a multi-channel optical line terminal (“OLT”) contains spare lasers or standby lasers configured to replace a failed laser(s). In one aspect, PIC includes a set of fixed-wavelength lasers (“FWLs”), a tunable-wavelength auxiliary laser (“TWAL”), a photonic detector, and a tuner. FWLs, for example, generate optical wavelengths representing optical signals. TWAL generates an optical signal with a spectrum of wavelengths based on a setting generated by the tuner. The photonic detector detects a defective wavelength. The tuner adjusts output wavelength of TWAL in response to the defective wavelength. Alternatively, PIC includes a working laser array, standby laser array, and spare laser array capable of providing two-layer laser defective protections.
An optical device having a self-repair component capable of curing a defective component(s) is disclosed. To improve reliability as well as manufacturing yield, a photonic integrated circuit (“PIC”) for as a multi-channel optical line terminal (“OLT”) contains spare lasers or standby lasers configured to replace a failed laser(s). In one aspect, PIC includes a set of fixed-wavelength lasers (“FWLs”), a tunable-wavelength auxiliary laser (“TWAL”), a photonic detector, and a tuner. FWLs, for example, generate optical wavelengths representing optical signals. TWAL generates an optical signal with a spectrum of wavelengths based on a setting generated by the tuner. The photonic detector detects a defective wavelength. The tuner adjusts output wavelength of TWAL in response to the defective wavelength. Alternatively, PIC includes a working laser array, standby laser array, and spare laser array capable of providing two-layer laser defective protections.
Systems and techniques for location independent website filtering using bifurcated domain name system are described herein. A domain name system (DNS) request may be received. A unique device identifier may be received for the requesting device. The ISP may provide external network services to the services gateway. The DNS service provider may maintain a website filtering policy. The DNS request may be forwarded to the DNS service of the ISP. The DNS service of the ISP may respond with a DNS resolution. An access control request may be forwarded to the DNS service provider external to the ISP. A website filtering policy associated with the device identifier may be used to determine website access. The DNS service provider external to the ISP may respond with a grant/block status. Based on the returned grant/block status, the services gateway may respond to the requesting device with the DNS resolution or access denial.
An optical device having a self-repair component capable of curing a defective component(s) is disclosed. To improve reliability as well as manufacturing yield, a photonic integrated circuit (“PIC”) for as a multi-channel optical line terminal (“OLT”) contains spare lasers or standby lasers configured to replace a failed laser(s). In one aspect, PIC includes a set of fixed-wavelength lasers (“FWLs”), a tunable-wavelength auxiliary laser (“TWAL”), a photonic detector, and a tuner. FWLs, for example, generate optical wavelengths representing optical signals. TWAL generates an optical signal with a spectrum of wavelengths based on a setting generated by the tuner. The photonic detector detects a defective wavelength. The tuner adjusts output wavelength of TWAL in response to the defective wavelength. Alternatively, PIC includes a working laser array, standby laser array, and spare laser array capable of providing two layer laser defective protections.
Systems and techniques for concurrent optical network terminal simulation are described herein. A data packet may be received by an optical lint terminal. It may be determined that the data packet is associated with an optical network terminal simulation host. The data packet may be modified based on the determination. The modified data packet may be transmitted to a device.
Systems and techniques for website filtering using bifurcated domain name system are described herein. A domain name system (DNS) request may be received. An internet address for a DNS service of an internet service provider (ISP) and an internet address for a DNS service provider external to the ISP may be determined. The ISP may provide external network services to the services gateway. The DNS service provider may maintain a website filtering list. The DNS request may be forwarded to the internet address for the DNS service of the ISP and the internet address of the DNS service provider external to the ISP. A first response and a second response to the DNS request may be received from the respective DNS services. A DNS request response may be transmitted to a client computing device connected to an internal network of the services gateway upon receipt of the first and second responses.
A system and method for determining the location of nodes within a network. Beamforming coefficients associated with signals transmitted from a first node to a second node are determined and, based on the beamforming coefficients, direction is determined between the first and second nodes. Distance is determined as a function of direction and the location of the second node is determined as a function of distance and direction.
H04W 4/02 - Services utilisant des informations de localisation
G01S 5/08 - Position d'un radiogoniomètre unique obtenue par détermination de la direction de plusieurs sources espacées d'emplacement connu
G01S 5/12 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques en coordonnant des lignes de position de formes différentes, p. ex. hyperboliques, circulaires, elliptiques ou radiales
Systems and techniques for mitigating spectral excursions in a passive optical network (PON) are described herein. A spectral excursion may be determined in the PON. The spectral excursion may indicate a laser transmission output on the PON at a wavelength that is outside a designated wavelength range. A duration may be identified for the spectral excursion. A first preamble offset may be generated using the duration of the spectral excursion. A round trip delay for the PON and a local time of day may be determined. The first preamble offset, the round trip delay, and the local time of day may be transmitted to an optical line terminal (OLT).
A method of virtually bonding together at least two physical channels in an optical network terminal (ONT) of a passive optical network (PON) can include receiving, via the ONT, a plurality of frames from a network device, classifying, using a processor of the ONT, the plurality of frames into one of a plurality of services, assigning the service to the at least two physical channels of the ONT, wherein each of the at least two physical channels is associated with a respective laser of the ONT to transmit at a respective wavelength, and transmitting, toward an optical line terminal, the plurality of frames of the service using at least one of the at least two physical channels during an assigned time slot.
H04L 12/28 - Réseaux de données à commutation caractérisés par la configuration des liaisons, p. ex. réseaux locaux [LAN Local Area Networks] ou réseaux étendus [WAN Wide Area Networks]
H04Q 11/00 - Dispositifs de sélection pour systèmes multiplex
H04L 12/743 - Traitement de l'adressage d’en-tête pour le routage, p.ex. table de correspondance par des techniques de hachage
Techniques are described for identifying a rogue network interface device whose laser is not under control of a controller of the network interface device. The techniques identify the rogue network interface device based on reception of a predefined data pattern in a timeslot that is not reserved for any of the network interface devices without needing to disable upstream data transmission from the network interface devices during their assigned timeslots. The techniques also relate to a network interface device determining whether the network interface device is transmitting optical signals at a wavelength different than the wavelength that the OLT to which the network interface device is associated receives.
H04B 10/00 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p. ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p. ex. les communications quantiques
H04B 10/038 - Dispositions pour le rétablissement de communication après défaillance utilisant des contournements
H04B 10/079 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant des mesures du signal de données
H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole
H04B 10/85 - Protection contre l’accès non autorisé, p. ex. protection contre l’écoute illicite
H04Q 11/00 - Dispositifs de sélection pour systèmes multiplex
H04J 3/16 - Systèmes multiplex à division de temps dans lesquels le temps attribué à chacun des canaux au cours d'un cycle de transmission est variable, p. ex. pour tenir compte de la complexité variable des signaux, pour adapter le nombre de canaux transmis
H04J 14/08 - Systèmes multiplex à division de temps
H04B 10/077 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant un signal de surveillance ou un signal supplémentaire
09 - Appareils et instruments scientifiques et électriques
Produits et services
telecommunications hardware marketed and sold to telecommunication carriers for use in a telecommunication carrier's network for the transmission, routing, and switching of video, data, and voice over Ethernet-based telecommunications networks
50.
Methods and apparatuses for dynamic backhaul bandwidth management in wireless networks
Techniques for dynamic backhaul bandwidth provisioning are described herein. For example, a method may include determining a potential subscriber user equipment load change, transmitting a backhaul bandwidth change request message based a potential subscriber UE load change, wherein the backhaul bandwidth change request message includes a requested backhaul bandwidth level, receiving a backhaul bandwidth change reply message in response to transmitting the backhaul bandwidth change request message, implementing a subscriber UE load change response corresponding to the potential subscriber UE load change based on receiving the backhaul bandwidth change reply message. Further example methods disclosed may include receiving a backhaul bandwidth change request message, wherein the backhaul bandwidth change request message includes a requested backhaul bandwidth level, calculating an available backhaul bandwidth level corresponding to a backhaul, transmitting a backhaul bandwidth change acknowledgement message when the available backhaul bandwidth level supports the requested backhaul bandwidth level.
H04W 28/16 - Gestion centrale des ressourcesNégociation de ressources ou de paramètres de communication, p. ex. négociation de la bande passante ou de la qualité de service [QoS Quality of Service]
Techniques are described for obtaining, by an optical network device (OND) coupled to an optical network, physical layer data of the optical network; generating, by the OND, an encapsulated representation of the physical layer data of the optical network; and outputting the encapsulated representation of the physical layer data to a diagnostic device.
H04B 10/07 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission
H04Q 11/00 - Dispositifs de sélection pour systèmes multiplex
H04L 12/931 - Architecture de matrice de commutation
Techniques are described for indicating a wavelength at which a network interface device is configured to operate. A first controller circuit may determine a wavelength at which the network interface device is operating. The wavelength at which the network interface device is operating includes at least one of an optical wavelength at which a laser of the network interface device is transmitting optical data or an optical wavelength at which a photodiode of the network interface device is receiving optical data. A second controller circuit may cause the network interface device to output a sensory output that indicates the wavelength at which the network interface device is operating.
H04B 10/079 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant des mesures du signal de données
H04J 14/02 - Systèmes multiplex à division de longueur d'onde
H04Q 11/00 - Dispositifs de sélection pour systèmes multiplex
09 - Appareils et instruments scientifiques et électriques
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Computer software, namely, software used to monitor, track and report on the status, performance, delivery, and assurance of services in telecommunications networks Computer services, namely, providing online non-downloadable software for others used to monitor, track and report on the status, performance, delivery, and assurance of services in telecommunications networks
56.
System and method for locating nodes within a wireless network
A system and method for determining the location of nodes within a network. Beamforming coefficients associated with signals transmitted from a first node to a second node are determined and, based on the beamforming coefficients, direction is determined between the first and second nodes. Distance is determined as a function of direction and the location of the second node is determined as a function of distance and direction.
H04W 4/02 - Services utilisant des informations de localisation
G01S 5/08 - Position d'un radiogoniomètre unique obtenue par détermination de la direction de plusieurs sources espacées d'emplacement connu
G01S 5/12 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques en coordonnant des lignes de position de formes différentes, p. ex. hyperboliques, circulaires, elliptiques ou radiales
A system and method for tracking and adjusting packet flows through a network having a service delivery node and one or more residential services gateways. Packet flows are recognized as they pass through one or more residential services gateway and flow analytics information corresponding to the packet flows recognized in the residential services gateways are transferred from the residential gateways to the flow identification control unit. The flow analytics information received from the residential services gateways is analyzed within the flow identification control unit and traffic through one or more of the service access platform and the residential services gateways is adjusted, if necessary, as a function of the flow analytics information analyzed by the flow identification control unit.
H04L 12/721 - Procédures de routage, p.ex. routage par le chemin le plus court, routage par la source, routage à état de lien ou routage par vecteur de distance
H04L 12/26 - Dispositions de surveillance; Dispositions de test
H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole
H04L 12/741 - Traitement de l'adressage d’en-tête pour le routage, p.ex. table de correspondance
58.
Optical network device with integrated port mirroring
Techniques are described for obtaining, by an optical network device (OND) coupled to an optical network, physical layer data of the optical network; generating, by the OND, an encapsulated representation of the physical layer data of the optical network; and outputting the encapsulated representation of the physical layer data to a diagnostic device.
An optical network comprises a plurality of optical network units and an optical line terminal having one or more transmitters and one or more receivers. Each of the one or more transmitters and each of the one or more receivers is configured to operate over a respective wavelength. Each of the optical network units has a respective laser that is optically coupled to a respective one of the one or more transmitters and a respective one of the one or more receivers. The optical line terminal is configured to monitor power levels of respective optical signal burst transmissions from each of the plurality of optical network units and to direct each optical network unit to wavelength bias its respective laser based on the monitored power levels to compensate for a respective wavelength shift experienced by the respective laser during burst transmissions.
Techniques are described for identifying a rogue network interface device whose laser is not under control of a controller of the network interface device. The techniques identify the rogue network interface device based on reception of a predefined data pattern in a timeslot that is not reserved for any of the network interface devices without needing to disable upstream data transmission from the network interface devices during their assigned timeslots. The techniques also relate to a network interface device determining whether the network interface device is transmitting optical signals at a wavelength different than the wavelength that the OLT to which the network interface device is associated receives.
H04B 10/00 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p. ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p. ex. les communications quantiques
H04B 10/038 - Dispositions pour le rétablissement de communication après défaillance utilisant des contournements
H04B 10/079 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant des mesures du signal de données
H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole
H04B 10/85 - Protection contre l’accès non autorisé, p. ex. protection contre l’écoute illicite
H04Q 11/00 - Dispositifs de sélection pour systèmes multiplex
H04J 3/16 - Systèmes multiplex à division de temps dans lesquels le temps attribué à chacun des canaux au cours d'un cycle de transmission est variable, p. ex. pour tenir compte de la complexité variable des signaux, pour adapter le nombre de canaux transmis
H04J 14/08 - Systèmes multiplex à division de temps
H04B 10/077 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant un signal de surveillance ou un signal supplémentaire
Techniques are described for identifying a rogue network interface device whose laser is not under control of a controller of the network interface device. The techniques identify the rogue network interface device based on reception of a predefined data pattern in a timeslot that is not reserved for any of the network interface devices without needing to disable upstream data transmission from the network interface devices during their assigned timeslots. The techniques also relate to a network interface device determining whether the network interface device is transmitting optical signals at a wavelength different than the wavelength that the OLT to which the network interface device is associated receives.
H04B 10/00 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p. ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p. ex. les communications quantiques
H04B 10/038 - Dispositions pour le rétablissement de communication après défaillance utilisant des contournements
H04B 10/079 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant des mesures du signal de données
H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole
H04B 10/85 - Protection contre l’accès non autorisé, p. ex. protection contre l’écoute illicite
H04Q 11/00 - Dispositifs de sélection pour systèmes multiplex
H04J 3/16 - Systèmes multiplex à division de temps dans lesquels le temps attribué à chacun des canaux au cours d'un cycle de transmission est variable, p. ex. pour tenir compte de la complexité variable des signaux, pour adapter le nombre de canaux transmis
H04J 14/08 - Systèmes multiplex à division de temps
H04B 10/077 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant un signal de surveillance ou un signal supplémentaire
Techniques are described for identifying a rogue network interface device whose laser is not under control of a controller of the network interface device. The techniques identify the rogue network interface device based on reception of a predefined data pattern in a timeslot that is not reserved for any of the network interface devices without needing to disable upstream data transmission from the network interface devices during their assigned timeslots. The techniques also relate to a network interface device determining whether the network interface device is transmitting optical signals at a wavelength different than the wavelength that the OLT to which the network interface device is associated receives.
H04B 10/00 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p. ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p. ex. les communications quantiques
H04B 10/038 - Dispositions pour le rétablissement de communication après défaillance utilisant des contournements
H04B 10/079 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant des mesures du signal de données
H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole
H04B 10/85 - Protection contre l’accès non autorisé, p. ex. protection contre l’écoute illicite
H04Q 11/00 - Dispositifs de sélection pour systèmes multiplex
H04J 3/16 - Systèmes multiplex à division de temps dans lesquels le temps attribué à chacun des canaux au cours d'un cycle de transmission est variable, p. ex. pour tenir compte de la complexité variable des signaux, pour adapter le nombre de canaux transmis
H04J 14/08 - Systèmes multiplex à division de temps
H04B 10/077 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant un signal de surveillance ou un signal supplémentaire
A system and method for establishing secure communication between a first device and a second device, wherein the first device is behind a firewall. A Secure Shell (SSH) connection is established between the first device and the second device, wherein establishing a connection includes establishing a secured communications tunnel from the first device to the second device via an SSH protocol. The first device is registered with the second device, wherein registering includes sending an SSH protocol REGISTER DEVICE message from the first device to the second device. The REGISTER DEVICE message is acknowledged by the second device, wherein acknowledging includes receiving the REGISTER DEVICE message, determining the client applications to register, determining a separate socket port number to be used as a remote port on the second device for each the registered client applications from the list of one or more client applications running on the first device, and transmitting a REGISTER DEVICE ACK message including the remote port number for each registered client application from the second device to the first device. A reverse port forwarding request is made based on the local port number and the remote port number received from in the REGISTER DEVICE ACK message.
In general, techniques are described for provisioning network devices in an Ethernet-based access network. For example, an access node located in an Ethernet-based access network positioned intermediate to a back office network and a customer network may implement the techniques. The access node comprises a control unit that discovers a demarcation point device that terminates the access network of the service provider network at the customer network. The control unit of the access node implements an Ethernet protocol to provide layer two network connectivity between the service provider network and the customer network, authenticates the demarcation point device based on a unique identifier assigned to the demarcation point device and, after successfully authenticating the demarcation point device, provisions the demarcation point device.
H04L 12/28 - Réseaux de données à commutation caractérisés par la configuration des liaisons, p. ex. réseaux locaux [LAN Local Area Networks] ou réseaux étendus [WAN Wide Area Networks]
H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole
69.
Hybrid ranging using an out of band signal in optical networks
A method of ranging comprises broadcasting a discovery request to a plurality of optical network units and receiving a respective discovery response from one or more of the plurality of optical network units. Each respective discovery response is transmitted as an out-of-band signal. The method also comprises approximating a respective out-of-band round trip delay to each corresponding optical network unit based on the respective discovery response; dynamically adjusting a size of a respective quiet window for each optical network unit based on the approximated out-of-band round trip delay; determining when to start the quiet window for each corresponding optical network unit based on the respective approximated out-of-band round trip delay; receiving an in-band ranging signal from the corresponding optical network unit during the respective quiet window; and determining an in-band round trip delay estimate based on the in-band ranging signal received during the respective quiet window.
H04B 10/079 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant des mesures du signal de données
70.
Distributed system and method for flow identification in an access network
A system and method for tracking and adjusting packet flows through a network having a service delivery node and one or more residential services gateways. Packet flows are recognized as they pass through one or more residential services gateway and flow analytics information corresponding to the packet flows recognized in the residential services gateways are transferred from the residential gateways to the flow identification control unit. The flow analytics information received from the residential services gateways is analyzed within the flow identification control unit and traffic through one or more of the service access platform and the residential services gateways is adjusted, if necessary, as a function of the flow analytics information analyzed by the flow identification control unit.
A system comprises a plurality of access nodes configured to provide one or more services to customer equipment; and a plurality of transport elements coupled together to form a network. Each transport element is configured to receive data packets committed to the network by one or more of the other transport elements and to commit data packets to the network, each data packet assigned to one of a plurality of traffic classes. Each respective transport element is further configured to shape a first set of traffic comprising data packets received from another transport element based on the respective traffic class of each data packet and to shape a second set of traffic comprising data packets to be committed to the network by the respective transport element based on the respective traffic class of each data packet, the first set of traffic shaped separately from the second set of traffic. Each respective transport element is further configured to shape the shaped first set of traffic together with the shaped second set of traffic based on respective weights associated with the first set of traffic and the second set of traffic.
H04L 12/28 - Réseaux de données à commutation caractérisés par la configuration des liaisons, p. ex. réseaux locaux [LAN Local Area Networks] ou réseaux étendus [WAN Wide Area Networks]
H04L 12/721 - Procédures de routage, p.ex. routage par le chemin le plus court, routage par la source, routage à état de lien ou routage par vecteur de distance
72.
System and method for servicing a device having a matrix barcode
A method of servicing a target device having a matrix barcode comprises analyzing data from a scan of the matrix barcode on the target device to obtain device identification information encoded in the matrix barcode; obtaining secondary information related to the target device; associating the device identification information with the secondary information; and transmitting the device identification information and secondary information over a network to a back office system.
Techniques for network packet flow analysis and control are described herein. One example method may include obtaining network topology information corresponding to a plurality of nodes of an access network, receiving communication monitoring messages from two or more of the plurality of nodes, wherein the communication monitoring messages include communication information corresponding to a plurality of communication layers, and determining information loss statistics associated with the plurality of nodes based on the communication monitoring messages and the network topology information.
In general, techniques are described that may allow a network element to analyze the performance of a network without using external equipment external to the network. In one example, a method includes injecting a plurality of data units onto the network, forwarding the plurality of data units around the network loop, injecting at least one timing data unit on to the network, forwarding the at least one timing data unit around the network loop, and determining at least one latency statistic correlated to the at least one characteristic of the forwarded plurality of data units.
Techniques for network packet flow management are described herein. For example, example methods may include receiving, at a first network device, a first flow identifier that identifies a first content of a first packet flow and a second flow identifier that identifies a second content of a second packet flow, wherein the first flow identifier and the second flow identifier are generated by a second network device. Such methods may also include receiving priority information indicating that the first content has a first priority and that the second content has a second priority that is lower than the first priority. Moreover, example methods may include transmitting the first packet flow and a modified second packet flow that includes the priority information to one or more other network devices.
Techniques for dynamic backhaul bandwidth provisioning are described herein. For example, a method may include determining a potential subscriber user equipment load change, transmitting a backhaul bandwidth change request message based a potential subscriber UE load change, wherein the backhaul bandwidth change request message includes a requested backhaul bandwidth level, receiving a backhaul bandwidth change reply message in response to transmitting the backhaul bandwidth change request message, implementing a subscriber UE load change response corresponding to the potential subscriber UE load change based on receiving the backhaul bandwidth change reply message. Further example methods disclosed may include receiving a backhaul bandwidth change request message, wherein the backhaul bandwidth change request message includes a requested backhaul bandwidth level, calculating an available backhaul bandwidth level corresponding to a backhaul, transmitting a backhaul bandwidth change acknowledgement message when the available backhaul bandwidth level supports the requested backhaul bandwidth level.
One or more devices of a network having asymmetric delay are configured to participate in time synchronization protocol sessions in which a client device synchronizes its local clock to a master device. In one example, a system includes an optical line terminal configured to receive a time synchronization protocol packet from a grandmaster clock and an optical network unit (ONU) configured to calculate a residence time of the time synchronization protocol packet, encode the residence time into the packet, and to forward the packet to a client device. Moreover, the system may participate in a plurality of time synchronization protocol sessions with a plurality of client devices, such that the client devices become synchronized in frequency and phase.
One or more devices of a network having asymmetric delay are configured to participate in time synchronization protocol sessions in which a client device synchronizes its local clock to a master device. In one example, a system includes an optical line terminal configured to receive a time synchronization protocol packet from a grandmaster clock and an optical network unit (ONU) configured to calculate a residence time of the time synchronization protocol packet, encode the residence time into the packet, and to forward the packet to a client device. Moreover, the system may participate in a plurality of time synchronization protocol sessions with a plurality of client devices, such that the client devices become synchronized in frequency and phase.
Techniques are disclosed that relate to synchronizing a clock on a network interface device with a clock on an optical line terminal (OLT). In one example, the technique to synchronizing the clocks may include monitoring one or more instances when the network interface device transmits information to the OLT and determining when a frame should be received by the network interface device based on the monitored one or more instances when the network interface device transmits information the OLT.
H04B 10/00 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p. ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p. ex. les communications quantiques
H04B 10/079 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant des mesures du signal de données
H04B 7/212 - Accès multiple par répartition dans le temps
A demarcation point device positioned at a customer network to provide the customer network access to a service provider network. The demarcation point device comprises a control unit that transmits one or more service query data packets on the customer network to test at least one service within the customer network. The control unit receives one or more service reply data packets from the customer network in response to transmitting the service query data packets, and determines one or more service statistics based on one or more of the service query data packets and the service reply data packets.
Caching techniques are described. An example network device positioned between an optical line terminal (OLT) and a service provider device includes a hot cache, a wide cache controller, and a control unit. The control unit is configured to receive, from a first service delivery platform, a request for digital content, and determine whether the requested digital content is stored on the hot cache. The control unit is further configured to, when the requested digital content is not stored on the hot cache, determine, using the wide cache controller, whether the requested digital content is stored on a wide cache of a second service delivery platform, receive, from the second service delivery platform, the requested digital content, and responsive to the request received from the first delivery platform, send the received digital content to the first delivery platform.
An access node comprises a control unit that determines an anticipated working set of television channels based on a historically delivered working set of television channels to which a subscriber network has previously subscribed. The anticipated working set indicates a time at which the subscriber network is expected to subscribe to a different set of channels. The access node includes at least one interface that couples the access node to the subscriber network, that prior to the time at which the subscriber network is expected to subscribe to the different set of channels, subscribes to the different set of television channels in accordance with the anticipated working set such that media content associated with the different channels of the anticipated working set is available for delivery to the subscriber network at the time during which the access node expects the subscriber network to subscribe to the different set of channels.
H04N 7/173 - Systèmes à secret analogiquesSystèmes à abonnement analogiques à deux voies, p. ex. l'abonné envoyant un signal de sélection du programme
H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole
H04N 21/438 - Interfaçage de la voie descendante du réseau de transmission provenant d'un serveur, p. ex. récupération de paquets du flux vidéo codé d'un réseau IP
H04N 21/6371 - Signaux de commande émis par le client et dirigés vers les éléments du serveur ou du réseau vers le réseau
Systems and methods for measuring frame loss in multipoint networks are provided. In one embodiment, a method for calculating frame loss comprises: performing a first continuity check message exchange between a first and a plurality of other devices, the first exchange comprises the first device collecting a first set of frame count data from each of the first and other devices, the first set of frame count data associated with a first instance of time by a first sequence identifier; performing a second continuity check message exchange between the first and plurality of other devices, the second exchange comprises the first device collecting a second set of frame count data from the first other devices, the second set of frame count data associated with a second instance of time by a second sequence identifier; and calculating a frame loss measurement by accounting for frame Ingress and frame Egress.
Systems and methods for measuring frame loss in multipoint networks are provided. In one embodiment, a method for calculating frame loss in a multipoint network is provided. The method comprises: synchronizing local PM frame count bin boundaries across a multipoint network; collecting a first sample of frame count data at a network manager from a first local PM frame count bin for each VLAN Endpoint on the multipoint network; and calculating a frame loss for the multipoint network by accounting for frame ingress and frame egress from the multipoint network based on the first sample of frame count data; wherein the first sample of frame count data is associated with a first period of time defined by the local PM frame count bin boundaries.
In general, techniques are described for protecting optical networks from consecutive identical digit (CID) errors. An optical network device comprising a control unit and an interface may implement the techniques described in this disclosure. The control unit determines whether a data packet will result in a CID error prior to encapsulating at least a portion of the data packet to form a passive optical network (PON) frame and then, in response to the determination that the data packet will result in the CID error, modifies the data packet to form a modified data packet so that the modified data packet will not result in the CID error. The control unit encapsulates the modified data packet to form a PON frame. The control unit applies a scrambling polynomial to the PON frame to form a scrambled PON frame. The interface transmits the scrambled PON frame.
An example method includes encapsulating, by an optical network device, at least a portion of a data packet to form a passive optical network (PON) frame. The method further includes applying, by the optical network device, a scrambling polynomial to at least a portion of the PON frame to generate a scrambled PON frame. The method further includes determining, by the optical network device, that the scrambled PON frame comprises a consecutive identical digit (CID) sequence greater than a threshold length. The method further includes replacing, by the optical network device the determined CID sequence with a correction pattern to generate a modified scrambled PON frame. The method further includes transmitting, by the optical network device, the modified scrambled PON frame.
In general, techniques are described for inline packet replication in network devices. A network device referred to as an optical line terminal (OLT) may implement the techniques. The OLT comprises a customer interface that supports different logical interfaces to which couple a plurality of optical network terminals (ONTs) and a network interface that receives a data unit. The OLT further comprises a conversion unit, such as a media access control (MAC) module, located in a data path of the optical line terminal that determines whether the received data unit is a candidate for replication. The conversion unit includes an inline packet processing module that performs replication to generate at least one copy of the data unit based on the determination that the received packet is a candidate for packet replication. The customer interface outputs the at least one copy of the data unit to the ONTs.
H04L 12/28 - Réseaux de données à commutation caractérisés par la configuration des liaisons, p. ex. réseaux locaux [LAN Local Area Networks] ou réseaux étendus [WAN Wide Area Networks]
H04J 3/26 - Systèmes multiplex à division de temps dans lesquels l'attribution est indiquée par une adresse dans lesquels l'information et l'adresse sont transmises simultanément
In general, this disclosure describes techniques that may allow multiple spanning tree networks to be joined across a ring network. In a ring topology, e.g., an Ethernet ring topology, there are multiple nodes connected one to another to form a ring. Subtending from the ring network are customer devices that may joined together to form networks, e.g., Ethernet networks. Providing only a single connection between a subtending network and the ring network risks isolating the subtending network from the ring network if a fault occurs on the connecting link. Providing two links between a subtending network and the ring network, however, may create an undesirable traffic loop. One example protocol used by the customer devices to communicate with one another in a network and prevent looping paths is Spanning Tree Protocol.
H04L 12/28 - Réseaux de données à commutation caractérisés par la configuration des liaisons, p. ex. réseaux locaux [LAN Local Area Networks] ou réseaux étendus [WAN Wide Area Networks]
89.
Scheduling delivery of upstream traffic based on downstream traffic in optical networks
In general, techniques are described for monitoring downstream traffic in order to schedule delivery of upstream traffic in a computer network. The techniques may be implemented by an optical line terminal (OLT) comprising a control unit and an interface. The control unit determines an amount of upstream data that is waiting at one of a plurality of ONTs to be transmitted upstream to the OLT, and determines an amount of downstream data that is transmitted by the OLT to this ONT. The control unit increases the determined amount of upstream data based on the determined amount of downstream data transmitted by the OLT to the ONTs and, after increasing the determined amount of upstream data, generates an upstream grant map that grants time slots to the ONTs based on the determined amount of upstream data. The interface transmits the upstream grant map downstream to the ONTs.
H04B 10/00 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p. ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p. ex. les communications quantiques
H04Q 11/00 - Dispositifs de sélection pour systèmes multiplex
In general, techniques are described for performing grant scheduling in optical networks. An optical line terminal (OLT) comprising a control unit may implement the techniques. The control unit determines an amount of upstream data associated with a category of service that is waiting at a first one of a plurality of ONTs to be transmitted upstream to the OLT and computes a number of GCPs for each of the ONTs based on a determined amount of data associated with the category of service that is waiting to be transmitted upstream to the OLT for each of the ONTs. After computing the number of GCPs, the control unit then grants time slots to the one or more of the ONTs based on the number of GCPs computed for each of the ONTs, wherein the time slots comprise time slots for upstream communication form the ONTs to the OLT.
In general, techniques are described for interworking between Ethernet organization, administration, and maintenance (OAM) frames and Asynchronous Transfer Mode (ATM) ATM OAM cells. For example, an access node in an Ethernet and ATM network may implement the techniques. The access node comprises an Ethernet interface that receives an Ethernet OAM Loopback frame from a device within an Ethernet network. The access node includes a control unit that constructs an ATM OAM End-to-End Loopback cell from the Ethernet OAM Loopback frame, and an ATM interface that transmits the ATM OAM End-to-End Loopback cell from the access node towards a virtual circuit connected to a subscriber device to verify connectivity from the originating device within the Ethernet network to the subscriber device within the ATM network.
H04J 3/16 - Systèmes multiplex à division de temps dans lesquels le temps attribué à chacun des canaux au cours d'un cycle de transmission est variable, p. ex. pour tenir compte de la complexité variable des signaux, pour adapter le nombre de canaux transmis
H04L 12/66 - Dispositions pour la connexion entre des réseaux ayant différents types de systèmes de commutation, p. ex. passerelles
H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole
Systems and methods for multicast admission control are provided. In one embodiment, a node comprises: a first interface configured to receive a multicast channel access request, from a subscriber interface, including an address for a channel; a memory including a subscriber profile and VLAN configuration data for the network; a processor that identifies a first VLAN corresponding to the address from the VLAN configuration data and determines whether the subscriber is authorized to receive the channel via the first VLAN based on access policy designated by the subscriber profile; wherein the processor further determines whether granting access to the channel violates admission control policy based on predefined bandwidth requirements and/or a stream count limit for the first VLAN; wherein when the subscriber interface is authorized to receive the channel and when granting access to the channel does not violate admission control policy, the processor routes the channel to the subscriber.
In general, techniques are described for providing an isolation virtual local area network (VLAN) for layer two access networks. A server comprising an interface and a control unit may implement the techniques. The interface receives a message that initiates a request for a layer three (L3) network address for use by a client device via an isolation virtual local area network (VLAN) that supports transmitting data from a network device to the server, where the network device is intermediately positioned between the client device and the server. The message includes a layer two (L2) address associated with the client device. The control unit determines whether to allow the client device to access the network and assigns the L3 network address to the client device based on the determination.
G06F 15/16 - Associations de plusieurs calculateurs numériques comportant chacun au moins une unité arithmétique, une unité programme et un registre, p. ex. pour le traitement simultané de plusieurs programmes
H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole
H04L 29/12 - Dispositions, appareils, circuits ou systèmes non couverts par un seul des groupes caractérisés par le terminal de données
94.
Provisioning network devices in Ethernet-based access networks
In general, techniques are described for provisioning network devices in an Ethernet-based access network. For example, an access node located in an Ethernet-based access network positioned intermediate to a back office network and a customer network may implement the techniques. The access node comprises a control unit that discovers a demarcation point device that terminates the access network of the service provider network at the customer network. The control unit of the access node implements an Ethernet protocol to provide layer two network connectivity between the service provider network and the customer network, authenticates the demarcation point device based on a unique identifier assigned to the demarcation point device and, after successfully authenticating the demarcation point device, provisions the demarcation point device.
H04B 10/08 - Equipement de surveillance, d'essai ou de mesure des défauts
H04L 12/28 - Réseaux de données à commutation caractérisés par la configuration des liaisons, p. ex. réseaux locaux [LAN Local Area Networks] ou réseaux étendus [WAN Wide Area Networks]
H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole
Techniques are disclosed that restrain cables in order to relieve excessive tensile force and to prevent breakage at a point of termination. In one example, a system includes a clip and a receiver configured to receive the clip. The clip includes a first member and a second member pivotally connected to each other by a hinge, the hinge located intermediate opposed ends of the first member and the second member, the hinge defining a groove for receiving a first portion of the cable.
G02B 6/00 - Guides de lumièreDétails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p. ex. des moyens de couplage
Techniques are disclosed that allow an optical transceiver module to be secured to a surface. In one example, an optical transceiver assembly includes an optical transceiver module, and a compressible support clip configured to engage the optical transceiver module, the support clip configured to receive at least a portion of a surface defining an aperture in order to at least partially support the optical transceiver module within the aperture.
G02B 6/00 - Guides de lumièreDétails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p. ex. des moyens de couplage
97.
Multi-card network device appearing as single entity in spanning tree network
Techniques are disclosed that may allow a network device comprising multiple line cards that are each executing a spanning tree algorithm to appear as a single spanning tree protocol entity to other network devices within a bridged local area network (LAN). In one example, a method includes determining, via a first processor on a first card of a network device, a first superior local port on the first card, transmitting, from the first card to a second card of the network device, a data unit specifying the determined first superior local port, and determining, via a second processor on the second card, a superior port on the network device among the first superior local port and a second plurality of ports on the second card based on a second plurality of BPDUs received via the second plurality of ports.
H04L 12/28 - Réseaux de données à commutation caractérisés par la configuration des liaisons, p. ex. réseaux locaux [LAN Local Area Networks] ou réseaux étendus [WAN Wide Area Networks]
In general, techniques are described for efficient management of ring networks with a system of two network devices. The first network device of the ring network is designated as an adjacent selective forwarding (ASF) device, and the second network device is designated as a master device. The master device monitors the ring network to determine whether a fault has occurred in the ring network and transmits via a secondary port of the master device a network status message to the ASF device based on the determination of whether the fault has occurred. The ASF device determines a status of the ring network based on the network status message and selectively forwards data traffic to the master network device based on the determination of the status. As a result, the master device more efficiently utilizes network resources by not consuming processor or memory resources to prevent traffic loops.
In general, techniques are described for inline packet replication in network devices. A network device referred to as an optical line terminal (OLT) may implement the techniques. The OLT comprises a customer interface that supports different logical interfaces to which couple a plurality of optical network terminals (ONTs) and a network interface that receives a data unit. The OLT further comprises a conversion unit, such as a media access control (MAC) module, located in a data path of the optical line terminal that determines whether the received data unit is a candidate for replication. The conversion unit includes an inline packet processing module that performs replication to generate at least one copy of the data unit based on the determination that the received packet is a candidate for packet replication. The customer interface outputs the at least one copy of the data unit to the ONTs.
H04J 3/26 - Systèmes multiplex à division de temps dans lesquels l'attribution est indiquée par une adresse dans lesquels l'information et l'adresse sont transmises simultanément
In general, techniques are described for implementing a virtual snooping bridge in computer networks. The techniques may be implemented by a ring network comprised of a plurality of ring network devices arranged in a ring topology. In one aspect, a ring network device coupled to an adjacent device that provides access to multicast content implements the techniques. This ring network device comprises one or more ports and a control unit. The ports receive ring messages from one or more of the other ring network devices in accordance with a group management ring protocol (GMRP). The ring messages indicate operations requested by one or more host devices with respect to delivery of content of the multicast group. The control unit then presents the received operations to the adjacent network device such that, from the perspective of the adjacent network device, the ring network appears as a single layer two network device.
