Abstract: A memory system includes dynamic random-access memory (DRAM) components that include interconnected and redundant component data interfaces. The redundant interfaces facilitate memory interconnect topologies that accommodate considerably more DRAM components per memory channel than do traditional memory systems, and thus offer considerably more memory capacity per channel, without concomitant reductions in signaling speeds. The memory components can be configured to route data around defective data connections to maintain full capacity and continue to support memory transactions.

Abstract: In one embodiment, an authoritative edge device (AED)-server in a computer network maintains assignment of an active AED for a particular virtual local area network (VLAN), and in response to a triggered re-assignment, sends an AED change request identifying an old active AED for the particular VLAN and a new active AED for the particular VLAN (e.g., and/or corresponding backups). In response to receiving the change request, the old active AED ceases forwarding of traffic for the particular VLAN and transmits a relinquishment confirmation into the network. Also, in response to receiving the change request and the relinquishment confirmation from the old active AED, the new active AED assumes responsibility for traffic forwarding for the particular VLAN and transmits an activation confirmation into the network. The change request is then deemed completed by the AED-sever upon receipt of both the relinquishment confirmation and the activation confirmation.

Abstract: Described herein are various technologies pertaining to providing assistance to an operator in a data center with respect to failures in the data center. An alarm is received, and a failing device is identified based upon content of the alarm. Failure conditions of the alarm are mapped to a failure symptom that may be exhibited by the failing device, and troubleshooting options previously employed to mitigate the failure symptom are retrieved from historical data. Labels are respectively assigned to the troubleshooting options, where a label is indicative of a probability that a troubleshooting option to which the label has been assigned will mitigate the failure symptom.

Abstract: For use in an Ethernet Virtual Private Network (EVPN) in which a site including at least one MAC-addressable device is multihomed, via a customer edge device (CE), to at least two provider edge devices (PE1 and PE2), the potential problem of one of the at least two provider edge devices (PE2) dropping or flooding packets designed for a MAC-addressable device of the multihomed site is solved by controlling advertisements of an auto-discovery per EVPN instance (A-D/EVI) route (or an auto-discovery per Ethernet segment identifier (A-D/ESI) route) to a remote provider edge device (PE3), belonging to the EVPN but not directly connected with the CE.

Abstract: In some examples, an example method to measure quality of service (QoS) of a network tunnel may include configuring a network tunnel from a tunnel source endpoint to a tunnel destination endpoint, transmitting multiple status packets to the tunnel destination endpoint, receiving multiple forwarded status packets from the tunnel destination endpoint, determining a time of receipt of each of the forwarded status packets, and determining a QoS measure of the network tunnel based on a time of transmission of each of the multiple status packets and the time of receipt of each of the forwarded status packets.

Abstract: Techniques for rapid point of presence failure handling for a content distribution network are described. A traffic management service collects network traffic utilization information from multiple POPs and, together with POP capacity information, identifies one or multiple other failover POPs that can accommodate the traffic of a particular POP in the event of its failure. The service can cause routers of these POPs to advertise redundant routes to neighboring edge devices such that the redundant routes are only used in the event of a detected failure of the primary POP.

Abstract: A User Equipment context is transferred from a source secondary network node to a target secondary network node. The UE is served by a master network node and the source secondary network node. The source secondary network node transmits, to the target secondary network node, a first message comprising a handover request, and receives a second message comprising configuration data of the target secondary network. After receiving the second message, the source secondary network node transmits, to the master network node, a third message comprising the configuration data of the target secondary network node.

Abstract: A data storage system can employ multiple concurrent domains with data storage devices each having a single data port. The data storage system may connect a number of hosts to a data storage device via a network controller, an expander, and an expander module with the data storage device having a single data port. A first data domain and a second data domain are each established from the network controller to the data storage device with the first data domain being independent of the second data domain. At least one illegal loop can be identified between the first data domain and the second data domain with the expander module and subsequently corrected with the expander as directed by the expander module.

Abstract: Aspects of the subject disclosure may include, for example, performing steps including monitoring a plurality of data packets in a data pipeline of a network, such as a User Plane Function of a 5G Core, where the monitoring can include analyzing header information associated with the plurality of data packets, identifying a first data object in the plurality of data packets according to the monitoring of the plurality of data packets, where the identifying the first data object in the plurality of data packets can further comprise identifying metadata associated with the first data object, switching a first set of data packets of the plurality of data packets associated with the first data object to an intelligent router for extracting the first data object from the first set of data packets to generate an extracted first data object responsive to the identifying the first data object in the plurality of data packets, and transmitting the extracted first data object to a client device via the data pipeline of

Abstract: Embodiments include computing devices, apparatus, and methods implemented by a computing device for task scheduling in the presence of task conflict edges on a computing device. The computing device may determine whether a first task and a second task are related by a task conflict edge. In response to determining that the first task and the second task are related by the task conflict edge, the computing device may determine whether the second task acquires a resource required for execution of the first task and the second task. In response to determining that the second task fails to acquire the resource, the computing device may assign a dynamic task dependency edge from the first task to the second task.

Abstract: In one embodiment, a device in a network identifies a packet to be sent to a destination in the network via a path using segment routing. The device determines a list of one or more unique identifiers for one or more of the nodes along the path. The device includes a segment routing header with the packet, the segment routing header comprising a set of segment identifiers and the list of one or more unique identifiers. The device sends the packet with the segment routing header towards the destination in the network. One or more receiving nodes that receive the packet use the set of segment identifiers to route the packet towards the destination and the list of one or more unique identifiers to notify the device when the packet was not sent to the destination via the path.

Abstract: Embodiments herein disclose a method performed by a wireless device (10) for handling connections in a wireless communication network, wherein the wireless device (10) is configured with a split signaling radio bearer to a first radio network node (12), being a master radio network node, and a second radio network node (13), being a secondary radio network node. The wireless device detects a radio link problem to the first radio network node (12); and transmits a failure report to the first radio network node (12) over the split signaling radio bearer via the second radio network node (13). The failure report indicates the radio link problem to the first radio network node (12).

Abstract: Techniques are disclosed for managing gateway switchovers. An indication is received that a primary gateway will be switched to a backup gateway. In response to the indication, a response is made to a periodic health probe that a gateway switchover has been initiated. Incoming data traffic is forwarded from the primary gateway to the backup gateway. Subsequent to an elapsed time delay, a response is made to the periodic health probe that the primary gateway will no longer accept incoming data traffic. The time delay may be based at least in part on one or more of a time interval of the periodic poll and a time to effect the gateway switchover. The forwarding of the incoming data traffic from the primary gateway to the backup gateway is terminated.

Abstract: Various systems and methods for performing fast fail-over. One method involves electing a first node as a designated forwarder node and electing a second node as a backup designated forwarder node. Prior to detecting a loss of connectivity between the designated forwarder node and the local network, the method elects both the designated forwarder node and the backup designated forwarder node, and the designated forwarder node forwards to a core network at least a first packet received from a local network. Subsequent to detecting a loss of connectivity, using the backup designated forwarder node to forward an instance of a second packet to the core network. In one embodiment, the backup designated forwarder node forwards an instance of the second packet, via a tunnel, to the designated forwarder node, which then forwards the instance of the second packet to the core network following the loss of connectivity.

Abstract: A method of configuring a distributed antenna system (“DAS”) having digital remote units configured to provide a DAS interface to wireless communication devices connecting to the DAS, and at least one digital master unit configured to provide a DAS interface to base stations connecting to the DAS. The method includes connecting digital remote units such that each digital remote unit is connected either to at least another digital remote unit and the digital master unit or to at least two other digital remote units. The method further includes connecting at least one of the digital remote units either to other the digital remote units and the digital master unit, or to at least three other digital remote units, and connecting the digital master unit to at least two of the digital remote units, thereby providing at least one path for redundant data transport.

Abstract: Methods and systems for changing communication paths in a network based on predicted Quality of Experience metrics are described herein. Computing devices in a network may communicate via one or more communication paths and using one or more applications. One or more Quality of Experience metrics may be determined for the one or more applications. Network metrics for the network may be measured and, based on one or more Quality of Service policies for the network, predicted Quality of Experience metrics may be determined using, e.g., a model network. A communication path recommendation may be output based on the predicted Quality of Experience metrics. For example, the recommendation may cause an application to change from a first communication path to a second communication path.

Abstract: Methods and apparatuses are provided in a wireless communication system supporting dual connectivity of a first base station and a second base station. A predetermined number of consecutive out-of-syncs for a special cell are received. A timer for the special cell is started. A radio link failure (RLF) is detected upon an expiration of the timer. A failure message including failure type is transmitted to the first base station in case that the RLF for the special cell is associated with the second base station.

Abstract: A method for controlling data transmission, device, and storage medium are provided. The method for controlling data transmission is applied to a first device and the method includes that a request for data transmission is sent; a main transmission path that fed back by a second device based on the request is received, here, the main transmission path is generated by connecting M sink nodes between the first device and the second device and M is an integer greater than 1; and the data transmission with the second device is performed according to the main transmission path.

Abstract: A packet forwarding method. The method reacts to service function events promptly by recalculating a more streamlined service function path (SFP) for a packet flow of a service function chain (SFC). Service functions (SFs) and service function forwarders (SFFs) collaborate to serve a SFC packet flow and bypass SFs belonging to the same SF group which does not provides functional service to packets of the flow.

Abstract: A node includes a plurality of ports configured to provide a service over a primary Multi-Segment Pseudowire (MS-PW) and a backup MS-PW in a network; a switching fabric interconnecting the plurality of ports; and a controller communicatively coupled to the plurality of ports and the switching fabric, wherein the controller is configured to receive a pseudowire status message for each of the primary MS-PW and the backup MS-PW, determine a Signal Degrade condition on one of the primary MS-PW and the backup MS-PW based on the pseudowire status message, and cause a switch of the service to an inactive one of the primary MS-PW and the backup MS-PW based on a Signal Degrade condition on an active one of the primary MS-PW and the backup MS-PW. The controller can further provide a trap to a management system based on the determined Signal Degrade condition.

Abstract: This application discloses a method for computing a forwarding path. The method includes: receiving, by a network device, notification packets separately sent by a plurality of forwarding nodes, where each notification packet includes interface forwarding delay information of the forwarding node that sends the notification packet, device forwarding delay information of the forwarding node, and a transmission delay of a link connected to the forwarding node; obtaining the interface forwarding delay information and the device forwarding delay information of each of the plurality of forwarding nodes, and obtaining a transmission delay of a link between the plurality of forwarding nodes; and computing a forwarding path between a first forwarding node and a second forwarding node, where a forwarding delay of the forwarding path meets a delay requirement of a service.

Abstract: A wireless device receives, one or more messages from a base station. The one or more messages indicate a first scheduling request (SR) resource corresponding to a first logical channel. A first SR is triggered in response to data of the first logical channel becoming available for transmission to the base station. A second SR is triggered in response to data of a second logical channel becoming available for transmission to the base station. when no valid SR resource is being configured for the second SR: a random access procedure is initiated; and the second SR is canceled and the first SR is kept pending. The first SR is transmitted to the base station via the first SR resource in response to the triggering of the first SR. An uplink grant for transmission of a transport block is received.

Abstract: Provided are a method by which a terminal performs mobility in a wireless communication system and a device supporting same. The method may comprise the steps of: establishing a connection with a master eNB (MeNB); setting a mobility rule for a cell list associated with a secondary eNB (SeNB) and cells associated with the SeNB; on the basis of the mobility rule, selecting at least one cell from the cells included in the cell list; and notifying the SeNB of the selected at least one cell.

Abstract: A cyber security assessment platform is provided. The platform can assess the security posture of a network by deploying one or more scenarios to be executed on one or more assets on the network and analyzing the outcomes of the scenarios. A scenario can be configured to validate a device or network status, and/or mimic an unauthorized cyber-attack. Each scenario can include one or more phases defining an execution path. Related method, apparatus, systems, techniques and articles are also described.

Abstract: The present technology relates to a transmitting apparatus, a receiving apparatus, and a data processing method each of which enables channel bonding to be more reliably performed. There is provided a transmitting apparatus generating physical layer signaling including first identification information with which a group of frequency bands constituting channel bonding is identified, and second identification information with which the frequency band belonging to the group is identified; and transmitting a broadcasting signal which includes the physical layer signaling and is changed in frequency band thereof by a relay apparatus by utilizing a predetermined frequency band. The present technology, for example, can be applied to a broadcasting system utilizing channel bonding.

Abstract: Virtual channel assignment in a network is achieved by constructing a Traffic Conflict Graph (TCG) dependent upon a network interconnect topology. The TCG has vertices corresponding to traffic entries in a network specification and edges that connect pairs of vertices. An edge weight, dependent upon interconnect topology and traffic flow characteristics, is assigned to each edge. The vertices are colored using minimum or soft coloring and the virtual channels are mapped to the traffic entries, according to the resulting colors, to provide a virtual channel assignment. The TCG may be constructed by generating a vertex in the TCG to represent each traffic entry, assigning a traffic flow characteristic of a traffic entry to a corresponding vertex and generating an edge between first and second vertices when a number of ‘qualified’ common edges, across all routes for corresponding traffic entries, is greater than zero.

Abstract: Systems and methods for providing improved connection setup on networks is disclosed. At initial call setup, the system can choose between transmission control protocol (TCP) and user datagram protocol (UDP) based on current network conditions. When network conditions—e.g., signal strength and/or signal quality—are such that establishing the connection is likely to be unreliable, then the system can automatically choose TCP for improved reliability. When network conditions are good, on the other hand, then the system can automatically choose UDP for improved speed and efficiency. The system may also switch back and forth between TCP and UDP during use because of changing network conditions. This can reduce dropped connections, poor quality connections, dropped packets, and other errors.

Abstract: A circuit includes a false circuit path in a circuit under test having a starting logic point to an end logic point of the path. The false circuit path is designated as a testing path to be excluded during testing of one or more valid timing paths of the circuit under test. A false path gating circuit gates the starting logic point to the end logic point of the false circuit path. The false path gating circuit disables the false circuit path in response to one or more gating controls asserted during the testing of the one or more valid timing paths of the circuit under test.

Abstract: Embodiments of the present disclosure provide a device control method and apparatus, and relate to the field of device control technologies. The method includes: determining a session attribute of user equipment UE; and sending the session attribute to a first access network AN accessed by the UE, where the session attribute is used by the first AN to control the UE.

Abstract: Some embodiments of proxy-less Secure Sockets Layer (SSL) data inspection have been presented. In one embodiment, a secured connection according to a secured network protocol between a client and a responder is setup via a gateway device, which is coupled between the client and the responder. The gateway device transparently intercepts data transmitted according to the secured network protocol between the client and the responder. Furthermore, the gateway device provides flow-control and retransmission of one or more data packets of the data without self-scheduling the packet retransmissions using timeouts and based on the packet retransmission logic of either the client-side or the responder side of the connection. The gateway device is further operable to perform security screening on the data.

Abstract: A method, program product, and system for re-assembling fragmented HTTP2 fragments is provided. In response to receiving a SSL/TLS segment, a TCP sequence number hash table is queried for the TCP sequence number included in the SSL/TLS segment header. In response to locating a matching TCP sequence number, extracting from the TCP sequence number hash table an associated stream identifier, and resuming fragmented re-assembly using the associated stream identifier, by extracting the matching HTTP2 stream identifier from a HTTP2 hash table, a HTTP2 buffer and the remaining message length. A new HTTP2 hash table entry is created when a matching entry is not found, indicating start of a new message. For each segment, data from the SSL/TLS segment is appended to the HTTP2 buffer until the complete HTTP2 message is re-assembled. The re-assembled HTTP2 response/request is sent to its destination, and the corresponding entries are deleted from the hash tables.

Abstract: There is provided a method of operating a reconfigurable differential protection scheme for carrying out differential protection of an electrical power network, the electrical power network comprising terminals, each of the terminals configured to be in communication with each other within a communications network. The method includes controlling the differential protection scheme to deactivate the differential protection, and selecting a terminal to be configured out of or into the differential protection scheme. The method also includes communicating reconfiguration information among the terminals, the reconfiguration information including the selection of the terminal to be configured out of or into the differential protection scheme.

Abstract: A method of operating a call control node in a telecommunications network, the method comprising the steps of: establishing a telephony call between a first user and a second user; receiving a call control instruction, the call control instruction being for associating a to-be-established new call leg, between the call control node and a communications server, with the telephony call; establishing the new call leg between the call control node and the communications server; connecting the new call leg to the telephony call on the basis of the call control instruction, to make the communications server a party to the telephony call.

Abstract: A path establishment method and a controller are disclosed. The method includes: when detecting a path establishment request for establishing P2MP TE, computing a P2MP TE path by using head node information and tail node information included in the path establishment request; identifying a target branch node in the P2MP TE path, and obtaining a label of the target branch node; and when a third node corresponding to the head node information and the target branch node are not a same node, sending first information to the third node, and sending second information to the target branch node, where the second information is used to instruct the target branch node to generate a multicast forwarding entry. Embodiments of this application can reduce complexity of establishing the P2MP TE path.

Abstract: In a communication system including multiple ring networks, each ring network comprises: a host node serving as an upper controller for the other nodes in the own ring network, the host node being configured to be capable of communicating with another ring network; and a switch provided in the ring network and having multiple regular ports and multiple redundant ports, wherein the redundant communication ports of the switch in each ring network are connected to the redundant communication ports of the switch in the other ring network via redundant communication lines. When a communication error is detected in one ring network, the host node of the one ring network controls the switch of the own ring network and the switch of another ring network such that at least one node of the own ring network is incorporated in the other ring network via the switches and the redundant communication lines.

Abstract: A method and an apparatus for managing a data transmission channel includes obtaining a delay of data transmitted on a first channel and a continuity parameter of the first channel, and a delay of data transmitted on a second channel and a continuity parameter of the second channel; detecting whether a fault event occurs on the first channel; and switching a working channel of a source provider edge (PE) and a sink PE to the second channel when the fault event occurs on the first channel.

Abstract: An embodiment first network node has a data flow table identifying forwarding rules to be applied to incoming data packets. The first network node is configured to allow for manipulation of the data flow table via control messages received via a control connection to a controller. The first network node is further configured to determine an occurrence of a network event or compliance with a condition specified by the controller. The first network node is further configured: to establish a control connection to a second network node in case that the network event occurs or the condition is met and to exchange control messages with the second network node via the control connection.

Abstract: In one embodiment, a primary tunnel is established from a head-end node to a destination along a path including one or more protected network elements for which a fast reroute path is available to pass traffic around the one or more network elements in the event of their failure. A first path quality measures path quality prior to failure of the one or more protected network elements. A second path quality measures path quality subsequent to failure of the one or more protected network elements, while the fast reroute path is being used to pass traffic of the primary tunnel. A determination is made whether to reestablish the primary tunnel over a new path that does not include the one or more failed protected network elements, or to continue to utilize the path with the fast reroute path, in response to a difference between the first path quality and the second path quality.

Abstract: The present disclosure provides system, method and apparatus for implementing fast reroute (FRR). The present disclosure provides a mechanism to associate working LSPs with a FRR LSP to protect against the node/link failures and can switch the traffic immediately upon LSP failure. Further, the present disclosure enables to communicate the status of FRR in use to the PCE so as to have centralized control over the FRR mechanism.

Abstract: A customer network controller (CNC) including a processor and a memory. The processor is configured to use a virtual private network (VPN)-specific service model for a VPN service and map the VPN-specific service model to one or more traffic engineering (TE)-specific parameters. The memory is coupled to the processor and configured to store a mapping between a VPN identification (ID) of the VPN service corresponding to the VPN-specific service model and a tunnel ID of either an existing TE tunnel or newly-established TE tunnel for the VPN service. The existing TE tunnel or the newly established TE tunnel satisfies the one or more TE-specific parameters.

Abstract: A method of assigning performance indicators to objects of a network employing a computation to assign performance indicators to said objects of said network such that a sum of said performance indicators of objects along a given path in said network in relation to a first threshold value indicates whether said path fulfils a predetermined criterion, and/or indicates whether said path does not fulfil said predetermined criterion. A method of evaluating a performance of a path in a network based on the performance indicators involves the steps of calculating a sum of performance indicators for said objects along said path and evaluating a performance of said path by comparing said sum against a first threshold value.

Abstract: A logic-executing ring buffer (LERB) is a ring buffer with integrated logic. A LERB includes a series of logical ring stages and corresponding ring entries mapped to each other using an indirection table. A LERB can include control logic and stage functions that execute in association with each ring stage. The LERB advances by updating the indirection table (e.g., to map an associated ring entry with a subsequent ring stage, optionally based on pinning logic) and/or by passing data from one ring stage to the next. As such, ring stages can store transient data that gets passed between ring stages, ring entries store persistent data that does not move, and mappings are updated by LERB control logic and/or stage functions. As such, a LERB is a flexible data structure that provides expanded functionality and improved memory management for many applications.

Abstract: Disclosed is a state reporting control method, which is applied to a stateful path computation element and includes: setting and notifying an initial subscription state of an LSP state report of a PCC node in a process of session initialization with the PCC node; and sending a subscription update request to the PCC node to subscribe or unsubscribe the LSP state report of the PCC node.

Abstract: An Inter-Chassis Link (ICL) failure management system includes a first switch device and a second switch device coupled together by an Inter-Chassis Link (ICL) that is included in a control network and that is configured to provide a primary control channel for transmitting control information between the first switch device and the second switch device. A third switch device is coupled to each of the first switch device and the second switch device by a first aggregated link. When the first switch device determines that the ICL is unavailable, it causes a first port and a second port that provide the first aggregated link to be added to the control network to provide a primary backup control channel. The first switch device may then send control information to the second switch device through the primary backup control channel via the first port and the second port.

Abstract: A computer-method is provided for designing a router network to connect components of an integrated circuit, where the router network comprises a plurality of connected data routing elements. The method comprises generating an undirected graph to represent a mesh of candidate router elements, where the candidate data routing elements are positioned dependent on at least one characteristic of the integrated circuit. The undirected graph comprises a node to represent each candidate data routing element and an edge to represent each connection between the candidate data routing elements.

Abstract: A system and method for processing communication media in a regionally distributed communication platform that includes at a first platform region, establishing a communication session comprising establishing a media communication to at least one endpoint from the first region and establishing signaling communication to a second platform region; selecting a media resource in response to a change in media processing requirements of the communication session; when the selected media resource is outside the first region, routing media communication through a media resource outside of the first region; when the media resource is available in the first region, routing media communication through the media resource of the first region; and when the media resource is outside of the second region, storing the media communication in the first region at least temporarily and tunneling a branch of the media communication to a central media service in the second region.

Abstract: A method and a network node for managing allocation of network resources in restoration of traffic in a connection oriented network are disclosed. The method comprises restoring a first traffic from a first path on an alternative path if the first path is affected by a first failure and assigning a reserved status to resources of the first path no longer used for carrying the first traffic. If a second path is affected by a second failure the method comprises restoring a second traffic from the second path, wherein the restoration of the second traffic does not use the resources having the reserved status.

Abstract: Systems and methods are provided that include a control panel of a security system receiving results from a scan of first operating channels of a first wireless protocol conducted a plurality of wireless security sensors, determining which of second operating channels of a second wireless protocol include wireless communication, determining that a first of the first operating channels of the first wireless protocol fails to overlap with the second operating channels of the second wireless protocol that include the wireless communication, determining whether the results from the scan indicate that the first of the first operating channels of the first wireless protocol includes interference at any of the plurality of wireless security sensors, and migrating the wireless communication with the plurality of wireless security sensors to the first of the first operating channels of the first wireless protocol.

Abstract: For use in an Ethernet Virtual Private Network (EVPN) in which a site including at least one MAC-addressable device is multihomed, via a customer edge device (CE), to at least two provider edge devices (PE1 and PE2), the potential problem of one of the at least two provider edge devices (PE2) dropping or flooding packets designed for a MAC-addressable device of the multihomed site is solved by controlling advertisements of an auto-discovery per EVPN instance (A-D/EVI) route (or an auto-discovery per Ethernet segment identifier (A-D/ESI) route) to a remote provider edge device (PE3), belonging to the EVPN but not directly connected with the CE.

Abstract: A method and system for interconnecting multiple distributed components in a communication network is provided. The design includes a multiple order cross connection fabric employed to interconnect multiple orders of data with at least one distributed component in the communication network. The design may further include at least one order of path termination and adaptation connection, where the at least one order of path termination and adaptation connection providing an interface between the multiple order cross connection fabric and a data management system. The design may be implemented in a SONET/SDH environment.