36results about "Bundled link activation" patented technology

Each of first and second bridges of a data network having respective links to an external node implement a network bridge component that forwards traffic inside the data network and a virtual bridge component that forwards traffic outside of the data network. A virtual bridge is formed including the virtual bridge components of the first and second bridges and an interswitch link (ISL) between the virtual bridge components of the first and second bridges. Data frames are communicated with each of multiple external network nodes outside the data network via a respective one of multiple link aggregation groups all commonly supported by the virtual bridge.

A switch of a data network implements both a bridge and a virtual bridge. In response to receipt of a data frame by the switch from an external link, the switch performs a lookup in a data structure using a source media access control (SMAC) address specified by the data frame. The switch determines if the external link is configured in a link aggregation group (LAG) and if the SMAC address is newly learned. In response to a determination that the external link is configured in a LAG and the SMAC address is newly learned, the switch associates the SMAC with the virtual bridge and communicates the association to a plurality of bridges in the data network.

A method, system and computer program product in a downstream line card of a Cable Modem Termination System (CMTS) for managing downstream traffic for channels and bonded channel groups is provided herein. The method comprises the step of receiving packets for transmission to cable modems and classifying each packet to a flow based on class of service associated with the packet. The method further includes the step of storing the packets in flow queues based, wherein a flow queue is selected based on a flow a packet is associated with and wherein each flow corresponds to a single flow queue. The method also includes transmitting the packets from the flow queues to channel queues or bonded channel queues using corresponding channel nodes or bonded channel nodes at a rate that is determined based on feedback data and scheduling downstream transmission of packets on a single downstream channel if the packet is stored in a channel queue and on multiple downstream channels that are bonded together to form a bonded channel group if the packet is stored in a bonded channel queue. The feedback data is adjusted for each channel node or bonded channel node based on a queue depth for a corresponding channel queue or bonded channel queue.

A system and method for out-of-band network management is provided wherein one or more different management interfaces are converted into a common format management data. The system may encrypt the common format management data. The system may also authenticate each user that attempts to access the management interfaces.

In accordance with embodiments disclosed herein, there are provided methods, systems, mechanisms, techniques, and apparatuses for traffic aggregation on multiple WAN backhauls and multiple distinct LAN networks; for traffic load balancing on multiple WAN backhauls and multiple distinct LAN networks; and for performing self-healing operations utilizing multiple WAN backhauls serving multiple distinct LAN networks. For example, in one embodiment, a first Local Area Network (LAN) access device is to establish a first LAN; a second LAN access device is to establish a second LAN; a first Wide Area Network (WAN) backhaul connection is to provide the first LAN access device with WAN connectivity; a second WAN backhaul connection is to provide the second LAN access device with WAN connectivity; and a traffic aggregation unit is to form a logically bonded WAN interface over the first WAN backhaul and the second WAN backhaul. In some embodiments an optional traffic de-aggregation unit may be used.

A network system is provided between at least a first client site and a second client site. A client site network component is implemented at least at the first client site, the client site network component aggregating one or more diverse network connections so as to configure an aggregated connection that has increased throughput. At least one network server component may be configured to connect to the client site network component using the aggregated connection. A cloud network controller may be configured to manage the data traffic and a virtual edge providing transparent lower-link encryption for the aggregated connection between the client site network component and the network server component. The network server component includes a virtual control plane interface configured to establish a unicast path between the network server component and each of a plurality of remote network server components.

The invention is directed to energy-efficient network processing of delay tolerant data packet traffic. Embodiments of the invention determine if an aggregate of time critical traffic flow rates and minimum rates for meeting QoS requirements of delay tolerant traffic flows exceeds a combined optimal rate of packet processing engines of a network processor. In the affirmative case, embodiments set the processing rate of individual packet processing engines to a minimum rate, such that the cumulative rate of the packet processing engines meets the aggregate rate, and schedule the delay tolerant flows to meet their respective minimum rates. Advantageously, by throttling the processing rate of only delay tolerant traffic, energy consumption of network processors can be reduced while at the same time QoS requirements of the delay tolerant traffic and time critical traffic can be met.

A computing method of using a processor to manage a virtualization of a network bonding connection includes organizing one or a plurality of network bonding engines, each of the network bonding engines configured to split input data from at least one input data source into a plurality of data streams communicated over a plurality of wireless IP connections of different performance characteristics, or to reassemble the input data from the plurality of data streams. The organizing of the one or a plurality of network bonding engines includes choosing one or more wireless IP connections from the plurality of wireless IP connections to form one or more bonding groups through which the split data is communicated, and assigning network functions to each of the one or more bonding groups.

Some embodiments provide a system that implements a set of tools to define a set of one or more logical forwarding elements from a number of physical forwarding elements and a scalable framework to retrieve statistics relating each logical forwarding element. In some embodiments, the statistics relate to the logical ports of a logical forwarding element. The system of some embodiments allows a network administrator to retrieve a total packet count and byte count for one or more logical ports of the logical forwarding element, even though the logical ports may be distributed across multiple physical forwarding elements.

A selection method for selecting network connection concentrators for a given set of M≥1 communication paths usable by a communicating device. Each respective interface of the communicating device is connected to a respective path. The method includes the following acts: a) identifying a set (P1, P2, . . . , PN) of N≥2 concentrators situated in at least one network to which the communicating device is connected, each concentrator making it possible to aggregate connections using a plurality of paths suitable for being used by the communicating device; b) obtaining the value of at least one quality of service parameter QoS(i,j) for at least one path i, where i=1, . . . , M, and for concentrators Pj reachable from the communicating device via the path i; and c) selecting at least one concentrator from the set on the basis of the quality of service values that are obtained. The method is applicable to the multipath TCP (MPTCP) protocol.

In accordance with embodiments disclosed herein, there are provided methods, systems, mechanisms, techniques, and apparatuses for traffic aggregation on multiple WAN backhauls and multiple distinct LAN networks; for traffic load balancing on multiple WAN backhauls and multiple distinct LAN networks; and for performing self-healing operations utilizing multiple WAN backhauls serving multiple distinct LAN networks. For example, in one embodiment, a first Local Area Network (LAN) access device is to establish a first LAN; a second LAN access device is to establish a second LAN; a first Wide Area Network (WAN) backhaul connection is to provide the first LAN access device with WAN connectivity; a second WAN backhaul connection is to provide the second LAN access device with WAN connectivity; and a traffic aggregation unit is to form a logically bonded WAN interface over the first WAN backhaul and the second WAN backhaul. In some embodiments an optional traffic de-aggregation unit may be used.

Some embodiments provide a scalable framework to retrieve statistics relating different aggregated entities. In some embodiments, the aggregated entity is a pair of ports. The pair of ports can be physical ports of one or more physical forwarding elements. The pair of ports can be logical ports of one or more logical forwarding elements. In some embodiments, the aggregated entity is a machine or a group of machines. In some embodiments, the aggregated entity is an access control list (ACL).

One embodiment of the present invention provides a switch. The switch includes a link aggregation module adapted to establish a virtual link aggregation group comprising a plurality of links coupling a network device to the switch and one or more other switches. The switch also includes an acknowledgment module adapted to identify an acknowledgment of a notification message from each of the one or more other switches, where the notification message includes port information associated with a local link participating in the virtual link aggregation group. The switch further includes a link selection module adapted to, in response to identifying the acknowledgment from each of the one or more other switches, determine a state for the local link based on the port information, where the state indicates whether the local link is an active link or a standby link for the virtual link aggregation group.

A method, an information handling system (IHS), and a virtual link trunking (VLT) system for determining VLT ports to block and unblock in an IHS. The method includes calculating a forwarding table index for a local switch of currently active and inactive switch peers for a VLT port. A pre-determined forwarding table is retrieved from a memory containing a plurality of port blocking and unblocking actions for the switch peers. Current port blocking and unblocking actions are identified in the pre-determined forwarding table corresponding to the forwarding table index. Changes are determined between the previous port blocking and unblocking actions and the current port blocking and unblocking actions. The input / output (I / O) ports are configured for the local switch based on the determined changes in the port blocking and unblocking actions.

Systems and methods for automatically selecting active ports and standby ports in a Link Aggregation Group (LAG) or a Multi-Chassis LAG (MC-LAG) between a first node and a second node are described. The systems and methods include receiving a configuration associated with the LAG or the MC-LAG; automatically determining a port status for each of a plurality of ports based on the configuration; and communicating the determined port status for each of the plurality of ports between the first node and the second node.

Various embodiments of the invention allow for rapid communication in virtual link trunking (VLT) networks in which network traffic flows over not all-homed VLT peer devices, while honoring Equal Cost Multi Path (ECMP) decisions and normal route decisions about next hops. Traffic flow is made deterministic and free of sub-optimal paths that otherwise cause unnecessary traffic over inter-node links in the VLT domain. In embodiments, this is accomplished by using receiving VLAN interface-IP addresses from VLT devices in order to create and use a sub-LAG egress table from which sets of ports that lead to intended VLT devices are derived. In embodiments, instead of a VLAN interface-IP addresses a routing MAC address is used when forming the sub-LAG.

A method and apparatus for transmitting and receiving a broadcast signal including a robust header compression (RoHC) packet stream are disclosed. The broadcast signal transmitting method includes compressing a header of an IP packet included in an IP packet stream to output an RoHC (Robust Header Compression) packet stream, generating a signaling packet including information of at least one RoHC packets included the RoHC packet stream, wherein the signaling packet includes a signaling packet header and a signaling packet payload, wherein the signaling packet header includes signaling information that is included in the signaling packet payload, transporting the signaling packet through a first channel and transporting the RoHC packet stream through a second channel.

In accordance with embodiments disclosed herein, there are provided methods, systems, mechanisms, techniques, and apparatuses for traffic aggregation on multiple WAN backhauls and multiple distinct LAN networks; for traffic load balancing on multiple WAN backhauls and multiple distinct LAN networks; and for performing self-healing operations utilizing multiple WAN backhauls serving multiple distinct LAN networks. For example, in one embodiment, a first Local Area Network (LAN) access device is to establish a first LAN; a second LAN access device is to establish a second LAN; a first Wide Area Network (WAN) backhaul connection is to provide the first LAN access device with WAN connectivity; a second WAN backhaul connection is to provide the second LAN access device with WAN connectivity; and a traffic aggregation unit is to form a logically bonded WAN interface over the first WAN backhaul and the second WAN backhaul. In some embodiments an optional traffic de-aggregation unit may be used.

The embodiment of the present document provides a collaboration method in a distributed resilient network interconnected system, including: a link aggregation control protocol (LACP) system receiving system parameters notified by a distributed relay control protocol (DRCP) system, and using the system parameters of the DRCP system as system negotiation parameters of the LACP system. The embodiments of the present document further provide a link aggregation control protocol (LACP) system, wherein the LACP system includes a receiving module and a controlling module, the receiving module is configured to receive system parameters notified by a distributed relay control protocol (DRCP) system; the controlling module is configured to take the system parameters of the DRCP system as system negotiation parameters of the LACP system. The embodiment of the present document achieves a collaboration between the LACP system and the DRCP system.

A network system is provided between at least a first client site and a second client site, the first and the second client site are at a distance from one another. A client site network component is implemented at least at the first client site, the client site network component bonding or aggregating one or more diverse network connections so as to configure a bonded / aggregated connection that has increased throughput. At least one network server component may be configured to connect to the client site network component using the bonded / aggregated connection. A cloud network controller may be configured to manage the data traffic and a virtual edge providing transparent lower-link encryption for the bonded / aggregated connection between the client site network component and the network server component.

Exemplary methods for performing distributed data aggregation include receiving Internet Protocol (IP) traffic from only a first portion of the network. The methods further include utilizing a big data tool to generate a summary of the IP traffic from the first portion of the network, wherein a summary of IP traffic from a second portion of the network is generated by a second network device utilizing its local big data tool. The methods include sending the summary of the IP traffic of the first portion of the network to the third network device, causing the third network device to utilize its local big data tool to generate a summary of the IP traffic of the first and second portion of the network based on the summaries received from the first and second network devices, thereby allowing the IP traffic in the network to be characterized in a distributed manner.

A network system, method, and device are provided for improving network communication performance between at least a first client site and a second client site, where the first client site and the second client site are at a distance from one another that is such that would usually require long haul network communication. The network system includes at least one network bonding / aggregation computer system for bonding or aggregating one or more diverse network connections so as to configure a bonded / aggregated connection that has increased throughput; and at least one network server component, configured to interoperate with the client site network component, the network server component including a server / concentrator or a cloud concentrator element that is implemented at an access point to an multiple protocol label switching network.

A communication device communicates with a counterpart device via a working path or any of a plurality of backup paths. The communication device includes: a plurality of selection units which select either one of two paths, the plurality of selection units including a main selection unit and an auxiliary selection unit being different from the main selection unit; and a path determination unit which determines a path selected by one of the plurality of selection units which has last performed path selection to be a path to be used for communicating with the counterpart device. The main selection unit selects one path from between the working path and one of the plurality of backup paths. The auxiliary selection unit selects one path from between a path selected by one selection unit of the plurality of selection units and one of the plurality of backup paths, the one selection unit being different from the auxiliary selection unit.

A display device including a panel comprising a plurality of pixels, and a drive circuit configured to apply data voltage to the plurality of pixels through data lines is disclosed. In one embodiment, the drive circuit includes a first circuit block having a first recovery time from a power off state to an operational state of the first circuit block, a second circuit block having a second recovery time from a power off state to an operational state of the second circuit block, the second recovery time shorter than the first recovery time, and a control circuit configured to (i) enable the first circuit block and the second circuit block during a first time period, and to (ii) enable the first circuit block and disable the second circuit block during a second time period.

The invention provides for a network power-supply voltage adaptor arranged to receive an input voltage (V in) from a network trunk cable and to present an internal voltage derived from the said input voltage (V in), the adaptor being arranged, when at least one of the input voltage (V in) or the said internal voltage is above a reference voltage (Ref V), to regulate the received input voltage (V in) to provide an adaptor output dc power supply voltage (V out) at a substantially constant dc power supply level less than that of the input voltage (V in), and independent of changes in the input voltage level (V in), and the adaptor further comprising at least one communication feed-through loop (55, 56, 66, 68) for the passage of substantially unaltered communications signals through the adaptor.

A method of performing a real-time classification of a data stream exchanged between a client and a server over a telecommunications network, comprises: receiving a data segment of the data stream indicating a data offset; updating a bitmap table with the received data segment, wherein the bitmap table comprises a number of blocks of data, the data blocks being ordered by block sequence numbers in the bitmap table; after updating the bitmap table, performing measurements on a complete data block to obtain at least one measurement result without waiting for all the data blocks having block sequence numbers that are lower than the first block sequence number to be completed; performing a statistical analysis based on measurement results obtained for several complete blocks; classifying the data stream into one group among a plurality of groups, based on the performed statistical analysis at least.

The invention relates to a method for processing at least one data packet (78, 156) which comprises a first header (82, 158) and a payload (100, 160), wherein the first header (82, 158) is processed by a first mode and the payload (100, 160) is processed by a second mode, wherein a number of processing steps (172, 174) for carrying out the second mode is greater than a number of processing steps (168, 170) for carrying out the first mode, the two modes being performed separately from one another.

Exemplary methods, apparatuses, and systems include a first network edge device configuring a mapping between a physical network interface and a plurality of logical interfaces. A second network edge device also configures a mapping between a physical network interface and a copy of the plurality of logical interfaces. Each of the logical interfaces is assigned a corresponding set of first and second layer networking addresses that is replicated across the first and second network edge devices. The first network edge device receives a first address resolution request via the physical network interface of the first network edge device that includes a source and a destination. The destination is an address assigned to one of the plurality of logical interfaces. The first network edge device determines a second layer networking address assigned to the destination logical interface and transmits an address resolution response including the determined second layer networking address.