Class / Patent application number | Description | Number of patent applications / Date published |
370386000 | Particular switching network arrangement | 58 |
20080219249 | FIBRE CHANNEL TRANSPARENT SWITCH FOR MIXED SWITCH FABRICS - A method and a Fibre Channel switch element are provided that allows communication between a host system and a target device attached to a proprietary switch fabric in a network. The Fibre Channel switch element includes a first port that communicates with the target device through the proprietary switch fabric by logging on behalf of the host system so that the proprietary switch behaves as if it was directly communicating with the host system; and a second port that communicates with the host system and collects host bus adapter (“HBA”) identification information, wherein the HBA identification information is used to map the first port to the second port so that when the host system communicates with the target device the Fibre Channel switch element is transparent to the proprietary switch fabric. | 09-11-2008 |
20080247387 | Scalable hybrid switch fabric - In one embodiment, a three-stage scalable hybrid switch fabric has an input stage with one or more electronic input crossbar switches, a middle stage, and an output stage with one or more electronic output crossbar switches. The middle stage has (1) tunable optical transmitters that convert electrical signals received from the input stage into optical signals having selectable wavelengths, (2) one or more passive, wavelength-dependent optical routers that route the optical signals received from the transmitters at input nodes to output nodes, each output node determined by the wavelength of the optical signal and possibly by the input node at which the optical signal is applied, and (3) optical receivers that convert the routed optical signals into electrical signals provided to the output stage. Each scaling increment includes (i) an input crossbar switch and its corresponding optical transmitters and (ii) an output crossbar switch and its corresponding optical receivers. | 10-09-2008 |
20080259913 | ACHIEVING SUPER-FAST CONVERGENCE OF DOWNSTREAM MULTICAST TRAFFIC WHEN FORWARDING CONNECTIVITY CHANGES BETWEEN ACCESS AND DISTRIBUTION SWITCHES - In one embodiment a switch has active and standby LAYER 2 switch interfaces coupled, respectively, to device interfaces of first and second LAYER 2/LAYER 3 network devices. The active switch interface is configured to forward all egress traffic and accept all ingress traffic and the standby switch interface is configured to forward only IGMP messages and configured to block all ingress traffic. | 10-23-2008 |
20080310408 | Internet Protocol Television - Distributing data includes establishing an asset classification for an asset or group of assets and assigning at least one of the asset classifications to a network device and another asset classification to a first set of data. The first set of data is transmitted over a network that includes the network device and is received in the network device on the condition that the asset classification assigned to the first set of data is the same as the asset classification assigned to the network device. | 12-18-2008 |
20090003328 | Methods and Computer Program Products For Route Determination - Methods and computer program products are provided for improved routing by evaluating routing alternatives based on multiple-path elements. The homing models provide a solution for improved access homing while balancing latency, load-balancing, and diversity needs by viewing each network in isolation or the combination of networks as a single network. | 01-01-2009 |
20090028139 | AUTOMATED CONFIGURATION OF A DIGITAL CROSS CONNECT - A request is received to establish a requested connection in a digital cross connect between a first port and a second port. It is determined whether each of the first port and the second port are on a list of ports that are available for the connection. A command is issued to the digital cross connect to establish the requested connection. | 01-29-2009 |
20090046709 | COMMON PROTOCOL AND ROUTING SCHEME FOR SPACE DATA PROCESSING NETWORKS - A method of communicatively coupling network elements supporting multiple network protocol types comprises receiving input having multiple network protocol types from an upper-level of the protocol stack at an endpoint-flexible-interface layer in a network endpoint, mapping the input between the upper-level of a protocol stack and a common-lower-level in the protocol stack at the endpoint-flexible-interface layer, and implementing the common-lower-level protocol layer to interface the multiple network protocol types to the physical layer, so that at least two endpoints of a network are communicatively coupled. | 02-19-2009 |
20090073968 | Device with modified round robin arbitration scheme and method for transferring data | 03-19-2009 |
20090097479 | Services Convergence Among Heterogeneous Wired and Wireless Networks - A system and method for heterogeneous network communication including wired, and wireless communication mediums for seamless data, voice, as well as multimedia applications independent of the actual communication medium, type of device, and protocols running over such communication channels. The devices are structured to operate over both wired and wireless communication mediums individually or simultaneously in the intermittent or continuous fashion in secure or non-secure mode, after obtaining explicit, implicit or no permission for usage. The system and method described herein allow the communication channels operate in their native mode of operation independent of converged application perception by user of the application, a user being a person, a machine, or any other such entity that can be identified as user. | 04-16-2009 |
20090109967 | METHOD AND SYSTEM FOR REMOTELY CONFIGURING AN ETHERNET SWITCH USING ETHERNET PACKETS - The disclosed systems and methods relate to remote configuration of an Ethernet Switch. Aspects of the present invention may reduce the time and cost associated with configuring and maintaining one or more Ethernet Switches in a network. | 04-30-2009 |
20090116477 | Signaling Referring to Setup of H.324 Video Telephone Between Media Gateway and Controller - A video telecommunication connection is established via a landline telecommunications network and an IP multimedia subsystem telecommunications network using a media gateway control function of at least one Internet multimedia-media gateway device in the IP multimedia subsystem telecommunications network. An H.223 multiplex level usable for a telecommunication connection is exposed to an H.223 protocol negotiation, in carrying out an H.245 protocol negotiations for setting up the H.223 protocol negotiations connection for a telecommunication connection. A media gateway control function device is informed when the H.223 logic channels are open by H.245 signaling, thereby enabling the Internet multimedia-media gateway device of the IP multimedia subsystem telecommunications network to carry out at least part of the setup. | 05-07-2009 |
20090245242 | Virtual Fibre Channel Over Ethernet Switch - A system for using a virtual switch in a network. In response to a switch connecting to a network, network configuration data is read to determine whether the switch is part of a virtual switch. In response to determining that the switch is part of the virtual switch, a priority number for the switch is sent to other switches connected to the network. Priority numbers are received from the other switches. It is determined whether the switch has a highest priority number. In response to determining that the switch does have the highest priority number, the switch is selected to be a master switch for the virtual switch. Then, domain identification data for the virtual switch is sent to the other switches. Afterward, the switch and the other switches respond to requests over the network as one domain identified by the domain identification data. | 10-01-2009 |
20100157996 | Multi-Service Network System - A multi-service network system which forms a wide area network connecting a plurality of metropolitan areas, including a primary network ring including at least one primary node and at least one secondary node; and a secondary network ring connecting the at least one secondary node to business premises equipment, wherein the business premises equipment are associated with respective customer premises equipment. | 06-24-2010 |
20100303067 | ASYNCHRONOUS PIPIELINED INTERCONNECT ARCHITECTURE WITH FANOUT SUPPORT - Circuits comprising an asynchronous programmable interconnect with fan out support that include a multi-port switch and a first and second buffer-switch circuit, and methods of forming such circuits, are provided. Additional circuits and methods are disclosed. | 12-02-2010 |
20120236850 | METHOD AND DEVICE FOR BUFFERING CELL BY CROSSBAR SWITCHING MATRIX - The present invention discloses a method for buffering a cell by a crossbar switching matrix, which includes: sending a jitter timestamp to a switching port connected to the crossbar switching matrix through a link, and receiving a cell that is sent by the switching port and carries the jitter timestamp, in which the jitter timestamp indicates a jitter of the link itself; and using a sum of the jitter timestamp carried in the cell and a relative delay timestamp of the corresponding link as a total timestamp, and storing the cell in a buffering unit corresponding to the total timestamp in a cell buffer of the link, in which the relative delay timestamp indicates a difference of a delay of the link relative to a delay of a lowest link. | 09-20-2012 |
20120275453 | SYSTEMS AND METHODS FOR SCALING DSLAM DEPLOYMENTS - A system for scaling vectored DSLAM deployments has a DSLAM interfaced with a cross-connect apparatus. The DSLAM receives POTS signals from at least one bridge connection assembly. When a DSLAM is added at the cross-connect facility, at least one connector of the bridge connection assembly is disconnected from an existing DSLAM and is interfaced with the newly-added DSLAM. By moving the connector to the newly-added DSLAM, a batch of downstream distribution pairs (which are preferably bound by a single distribution cable) are effectively moved from the existing DSLAM to the new DSLAM without having to reconfigure the jumpers of the cross-connect apparatus. Accordingly, it is possible to scale the cross-connect facility to any number of vectored DSLAMs while limiting vector group sizes, thereby reducing the complexity of vectoring operations, without having to perform complex reconfigurations of the cross-connect apparatus. | 11-01-2012 |
20120307822 | FIBRE CHANNEL FORWARDER FABRIC LOGIN SEQUENCE - For a fibre channel forwarder fabric login sequence in a fibre channel switch environment, where a Fibre Channel Forwarder (cFCF) is separated from a Fibre Channel over Ethernet (FCoE) data forwarder (FDF), at a Fibre Channel Login (FLOGI) to a target device from an initiator device, a node address acceptance notification is held from reaching the initiator device until each of the zoning distributions have been considered to have been completed. | 12-06-2012 |
20130010786 | System and Method for High Connectivity Platform - A system comprises a plurality of port cards arranged along a first orientation, the port cards operable to receive data from one or more nodes on a network. The system also comprises a plurality of switch-fabric cards arranged along a second orientation orthogonal to the first orientation, the switch-fabric cards operable to route data between the one or more port cards based on one or more rules. The system further comprises a plurality of bridge cards coupling the one or more port cards to the one or more switch-fabric cards, the bridge cards arranged physically between the port cards and switch-fabric cards. | 01-10-2013 |
20130077622 | NETWORK SYSTEM - A network system includes a plurality of lower switching hubs; and one or more upper switching hubs. Each lower switching hub includes a lower switch configuring portion for configuring a first LAG for all ports connected to the one or more upper switching hubs, and transmitting a first control frame containing its own identifier from all the ports connected to the upper switching hubs. Each upper switching hub includes an upper switch configuring portion for configuring a second LAG for ports connected to the same lower switching hub, based on the first control frames received from the lower switching hubs, and transmitting a second control frame containing its own identifier from the ports configured as the second LAG. The upper switch configuring portion is configured to prohibit normal frame transmission and reception and the transmission of the second control frame at a port which is not configured as the second LAG. | 03-28-2013 |
20130107879 | COMPUTER SYSTEM WITH FABRIC MODULES | 05-02-2013 |
20130142197 | SYSTEMS AND METHODS FOR IMPLEMENTING VIRTUAL SWITCH PLANES IN A PHYSICAL SWITCH FABRIC - A switching device includes multiple interfaces and a switch fabric. The switch fabric includes switch integrated circuits arranged in a number of stages. Multiple virtual switch planes may be implemented in the switch fabric. Data traffic received at the interfaces is selectively assigned to different ones of the virtual switch planes. | 06-06-2013 |
20130242984 | APPARATUS AND METHODS FOR MULTIMODE INTERNETWORKING CONNECTIVITY - This invention presents a digital network system able to concurrently provide multimode internetworking connectivity session over a plurality of disparate network systems, from User Premise Device (UPD) to NSP, CSP or ASP network gateways, and providing a plurality of internetwork environment. The invention also provide the methods for the support of the following internetworking connectivity services, concurrently:—a) public and shared-media Internet services; b) MPLS-enabled and IP-based Virtual Private Network (VPN) services; c) hybrid network system connection sessions among disparate connection-oriented and connectionless network systems; and d) end-to-end, connection-oriented, and circuit-switching connection sessions for VDMI-based application services through digital transceiver, be it xDSL or VCC-based land-line or wireless medium. | 09-19-2013 |
20130279502 | SWITCH HAVING DEDICATED STACKING LINK - A first switch includes a processor and a memory communicatively coupled to the processor. The memory stores instructions causing the processor, after execution of the instructions by the processor, to establish a first stacking link between a first stacking port of the first switch and a first stacking port of a second switch, establish a second stacking link between a second stacking port of the first switch and a first stacking port of a third switch, and dedicate the first stacking link to a first class of traffic between the first switch and the second switch. | 10-24-2013 |
20130287019 | ROUTING CIRCUIT AND CIRCUIT HAVING THE ROUTING CIRCUIT - A routing circuit and a circuit having the routing circuit are provided. The circuit includes a plurality of integrated circuits (ICs), a plurality of signal terminals and the routing circuit. Each of the ICs has a plurality of signal channels. The routing circuit is coupled between the ICs and the signal terminals to route the signal channels to the signal terminals. The routing circuit has a plurality of sequencers and a processing circuit. Each of the sequencers is configured to reconfigure an arrangement sequence of the signal channels of a corresponding one of the ICs. The processing circuit is coupled to the sequencers and has a first distributor. The first distributor routes the signal channels to the signal terminals in a group manner based on the arrangement sequences of the signal channels reconfigured by the sequencers according to a control signal. | 10-31-2013 |
20140269688 | PACKET DATA TRAFFIC MANAGEMENT APPARATUS - A packet data network traffic management device comprises a plurality of ports comprising at least a first port, a second port, and a third port; and a plurality of deterministic multi-threaded deterministic micro-controllers, each of the micro-controllers associated with a corresponding one of the ports to control packet data through the corresponding port; and the plurality of multi-threaded deterministic micro-controllers cooperatively operate to selectively communicate data packets between the plurality of ports. | 09-18-2014 |
20140321460 | COMMUNICATION PATH SWITCHING DEVICE, COMMUNICATION PATH SWITCHING METHOD AND COMMUNICATION PATH SWITCHING PROGRAM - A communication path switching device is configured to determine whether or not a specified network device where exclusion from a communication path or addition to the communication path is specified through an input device can perform path switching based on the individual pieces of information on a coupling configuration and a presence or absence of an independent control function; refer to a storage device for the individual pieces of information on the coupling configuration and a coupling policy to change the coupling policy according to a result of the determination; and processing of issuing, according to the result of the determination and the individual pieces of information in the storage device, a path switching instruction to a network device having the independent control function and a network device not having the independent control function that are path switching targets on a communication path directed to the specified network device. | 10-30-2014 |
20150036682 | Interface Switch for use with Fibre Channel Fabrics in Storage Area Networks - An interface switch which presents itself as switch to an enterprise fabric formed of the devices from the same manufacturer as the interface switch and that of a host or node to an enterprise fabric from a different manufacturer. This allows each enterprise fabric to remain in a higher performance operating mode. The multiplexing of multiple streams of traffic between the N_ports on the first enterprise fabric and the second enterprise fabric is accomplished by N_port Virtualization. The interface switch can be connected to multiple enterprise fabrics. All control traffic address mappings between virtual and physical addresses may be mediated and translated by the CPU of the interface switch and address mappings for data traffic performed at wire speed. Since the interface switch may preferably be a single conduit between the enterprise fabrics, it is also a good point to enforce perimeter defenses against attacks. | 02-05-2015 |
20150365353 | NETWORK MANAGEMENT DEVICE AND METHOD - A network management device includes a memory and a processor for managing a fabric being a logical network switch including a plurality of network switches. The processor is configured to accept data on port profiles including settings for ports of the fabric, and designation of lower ports that are external ports to which the port profiles of the fabric are to be applied, associate the upper port with the lower ports based on distances, inside the fabric, between each of upper ports and the lower ports, the upper ports being ports other than the lower ports among external ports of the fabric, generate a port profile for the upper port by integrating the port profiles of the lower ports based on the associating of the upper port with the lower ports, and set the generated port profile for the upper port. | 12-17-2015 |
370388000 | Multistage switch | 30 |
20080212577 | CHIP CIRCUIT FOR COMBINED AND DATA COMPRESSED FIFO ARBITRATION FOR A NON-BLOCKING SWITCH - A system for switching data packets through a multiple (m) input, multiple (n) output switching device providing switching having a fast one-cycle throughput. A respective switching device behaves like an output queued switch from a set of distributed output queues reading the incoming input control information from the plurality of input ports (IP) and compresses the information in a form which allows an easy association with a respective output port (OP) to which an individual input port is temporarily mapped. | 09-04-2008 |
20080259914 | SECONDARY PROTECTION APPROACH FOR POWER SWITCHING APPLICATIONS - An apparatus and method for providing a primary and a secondary protection to a load in a power switching application uses an electronic circuit breaker to selectively permit a flow of current from an input to a load. The circuit breaker comprises a plurality of first switches coupled in parallel, and a plurality of fuses coupled to the plurality of first switches. In a disclosed embodiment, each first switch is coupled to a first fuse and to a second fuse. A controller opens and closes the plurality of first switches by commanding a driver current ON and OFF. The controller is operable to detect a fault condition and to open the plurality of first switches in response to the fault condition by commanding the driver current OFF. If the controller fails to open one of the first switches, one of the fuses coupled to the switch is operable to blow. In addition, the circuit breaker also comprises a charge pump that provides an electric current to a second plurality of switches to prevent the second plurality of switches form shorting the driver current. | 10-23-2008 |
20090016332 | Parallel computer system - To exchange data between adjacent nodes at high speed while using an existing network including a fat tree and a multistage crossbar switch. This invention provides a parallel computer system including: a plurality of nodes each of which includes a processor and a communication unit; a switch for connecting the plurality of nodes with each other; a first network for connecting each of the plurality of nodes and the switch; and a second network for partially connecting the plurality of nodes with each other. Further, the first network is comprised of one of a fat tree and a multistage crossbar network. Further, the second network partially connects predetermined nodes among the plurality of nodes directly with each other. | 01-15-2009 |
20090028140 | SWITCHING DEVICE, SWITCHING METHOD, AND SWITCH CONTROL PROGRAM - A switching device includes an input stage switch group | 01-29-2009 |
20090141711 | Interleaved Multistage Switching Fabrics And Associated Methods - An interleaved multistage switching fabric includes Y multistage switching fabric panels, where Y is an integer greater than one. Each panel has primary inputs for receiving cells to be routed, local outputs for outputting routed cells, primary outputs for outputting non-routed cells, and reentry points for introducing non-routed cells into the panel. The switching fabric additionally includes at least one demultiplexer subsystem communicatively coupled to primary inputs of each panel, for interfacing the switching fabric with input lines. The switching fabric further includes at least one multiplexer subsystem communicatively coupled to local outputs of each panel, for interfacing the switching fabric with destination queues. The switching fabric additionally includes Y recirculation connections, where each recirculation connection communicatively couples primary outputs of one panel to reentry points of another panel. | 06-04-2009 |
20090201923 | APPARATUS AND METHOD FOR A FAULT-TOLERANT SCALABLE SWITCH FABRIC WITH QUALITY-OF-SERVICE (QOS) SUPPORT - Embodiments of the present invention relate to portions of a switch fabric having a single logical stage and at least one physical stage. In addition, the data paths and the control paths of the switch fabric can be decoupled thereby allowing additional processing to be performed than would otherwise be the case with control rates that matched the high data rates. In other words, data cells received on high speed links can be spread over many lower speed links; consequently, the data cells can transit the switch fabric at that high speed while the control information associated with the data can be processed at that lower speed. Because the control information can be processed at a lower speed (associated with the control path), the control information can be processed over a greater period of time. | 08-13-2009 |
20100027535 | MULTICAST SWITCHING SYSTEM - A conventional technology does not show that the number of middle stage switches is minimized on a non-blocking condition of a multisource and possible multicast Clos type network, and it becomes a high cost system. Further, no addition or deletion of a connection can be done without a data loss. It is an object to provide, as a means for solving the problems, a multisource and multicast possible Clos type network based on such a technology that the number of middle stage switches is minimized on a non-blocking condition and that addition/deletion of a connection to a existing multicast tree can be carried out without a data loss, so that the network can be operated at low cost without a data loss. | 02-04-2010 |
20100098070 | MULTISTAGE SWITCH CONTROL CIRCUIT - A multistage switch control circuit allows unit switches to be set at a higher speed than conventional multistage switch control circuits. Higher-order half first and second control elements are connected to a first section of a bus to form a first cluster, while lower-order half third and fourth control elements are connected to a second section of the bus to form a second cluster. A bus switch which functions as a cluster formation means is arranged between the first section and the second section of the bus to perform the connection/separation of the first section and the second section. The first to fourth control elements transmit switch control signals to corresponding unit switches, respectively, in each stage. | 04-22-2010 |
20100135286 | FULLY CONNECTED GENERALIZED MULTI-STAGE NETWORKS - A multi-stage network comprising (2×log | 06-03-2010 |
20100150147 | SYSTEM AND METHOD FOR IMPLEMENTING A MULTISTAGE NETWORK USING A TWO-DIMENSIONAL ARRAY OF TILES - A network, including: a first tile having a processor, a first top brick connected to the processor, a first bottom brick, and a first intermediate brick; a second tile having a second intermediate brick and a second bottom brick; multiple connections connecting the first top brick with the second intermediate brick and the first intermediate brick with the second bottom brick using a passthrough on an intermediate tile between the first and second tiles, where the first, the intermediate, and the second tiles are positioned in a row; and a third tile having a plurality of caches connected to a third bottom brick, where the second and third tiles are positioned in a column, and the first bottom brick, the second bottom brick, and the third bottom brick belong to a bottom layer of the network, and where the first and second intermediate bricks belong to an intermediate layer of the network. | 06-17-2010 |
20100165983 | SYSTEM ARCHITECTURE FOR A SCALABLE AND DISTRIBUTED MULTI-STAGE SWITCH FABRIC - In some embodiments, an apparatus includes a first housing, a second housing and at least one cable. The first housing includes a first interface card of a switch fabric. The second housing includes a second interface card of the switch fabric and a third interface card of the switch fabric. The second interface card of the switch fabric is operatively and physically coupled to the third interface card of the switch fabric via a midplane. The second interface card defines a plane that is nonparallel to the a plane defined by the third interface card and a plane defined by the midplane. The plane defined by the third interface card is nonparallel to the plane defined by the second interface card and the plane defined by the midplane. The cable is configured to operatively couple the first interface card to the second interface card. | 07-01-2010 |
20100165984 | METHODS AND APPARATUS RELATED TO A MODULAR SWITCH ARCHITECTURE - In some embodiments, an apparatus includes a first housing, a second housing and at least one cable. The first housing includes a first interface card of a switch fabric. The second housing includes a second interface card of the switch fabric and a third interface card of the switch fabric. The second interface card of the switch fabric is operatively and physically coupled to the third interface card of the switch fabric via a midplane. The second interface card defines a plane that is nonparallel to the a plane defined by the third interface card and a plane defined by the midplane. The plane defined by the third interface card is nonparallel to the plane defined by the second interface card and the plane defined by the midplane. The cable is configured to operatively couple the first interface card to the second interface card. | 07-01-2010 |
20100183003 | METHOD AND APPARATUS FOR HORIZONTALLY SLICING A MULTI-STAGE SWITCH FABRIC - A method and apparatus are provided for horizontally slicing a multi-stage switching fabric having transmission inputs and transmission outputs to and from the switch fabric. The switching fabric includes switch elements arranged in at least first and second stages, each switch element having element inputs and outputs with each switch element being configured to join one of the element inputs with an associated one of the element outputs. The switch fabric includes a first logic device that contains a stage-1 subset of the switch elements that is arranged within, and configured to operate as part of, the first stage. The first logic device also contains a stage-2 subset of the switch elements arranged within, and configured to operate as part of, the second stage. The switch fabric includes a second logic device that contains a stage-1 subset of the switch elements that is arranged within, and configured to operate as part of, the first stage. The second logic device also contains a stage-2 subset of the switch elements that is arranged within, and configured to operate as part of, the second stage. The first and second logic devices are physically discrete from one another. | 07-22-2010 |
20110019666 | Strict-Sense Minimal Spanning Switch Non-Blocking Architecture - The present invention discloses an apparatus to implement a m=n Non-Blocking Minimal Spanning Switch, where n=the total number of data input signals and m=the total number of data output signals and m=the number of crossbar connections in each switch. Data is input to the switch as a plurality of frames, whereby each crossbar connection contains a framer which detects framing patterns in the data. Skewed data is re-aligned and buffered so that the data output by each crossbar connection is equal and identical, thus any crossbar connection may be used to ensure a connection, eliminating the possibility of data interrupts. | 01-27-2011 |
20110044328 | CIRCUIT WITH NETWORK OF MESSAGE DISTRIBUTOR CIRCUITS - Source circuits ( | 02-24-2011 |
20110044329 | FULLY CONNECTED GENERALIZED MULTI-LINK MULTI-STAGE NETWORKS - A generalized multi-link multi-stage network comprising (2×log | 02-24-2011 |
20110200038 | METHODS AND APPARATUS RELATED TO PACKET CLASSIFICATION ASSOCIATED WITH A MULTI-STAGE SWITCH - In one embodiment, an apparatus can include a policy vector module configured to retrieve a compressed policy vector based on a portion of a data packet received at a multi-stage switch. The apparatus can also include a decompression module configured to receive the compressed policy vector and configured to define a decompressed policy vector based on the compressed policy vector. The decompressed policy vector can define a combination of bit values associated with a policy. | 08-18-2011 |
20110249672 | SYSTEM FOR MULTI-CHASSIS INTERCONNECTION AND METHOD FOR CHASSIS CONNECTION - A system for multi-chassis interconnection and a method for chassis connection are disclosed. The system includes at least three chassis; each chassis includes a first switch fabric unit (SFU) and a second SFU; the first SFU in the first chassis is connected to the first SFU in other chassis; and the second SFU in the second chassis is connected to the second SFU in other chassis. In the embodiments of the present invention, different SFUs in the chassis of the multi-chassis interconnection system are connected to different main chassis, thus overcoming the technical defect in the prior art that other chassis in the multi-chassis interconnection system are unable to exchange data when the main chassis is faulty. Therefore, in the embodiments of the present invention, other chassis in the multi-chassis interconnection system can still exchange data normally when the main chassis is faulty. | 10-13-2011 |
20120069842 | MULTICASTING WITHIN A DISTRIBUTED CONTROL PLANE OF A SWITCH - In some embodiments, a non-transitory processor-readable medium stores code representing instructions configured to cause a processor to receive, from an access switch, a first signal including forwarding state information associated with a first peripheral processing device from a set of peripheral processing devices. The code can further represent instructions configured to cause the processor to receive, from the first peripheral processing device, a second signal including a data packet. The code can further represent instructions configured to cause the processor to send, to a replication engine associated with the set of peripheral processing devices, a third signal such that the replication engine (1) defines a copy of the data packet, which is included within the third signal, and (2) sends, to a second peripheral processing device from the set of peripheral processing devices, a fourth signal including the copy of the data packet. | 03-22-2012 |
20120113984 | MULTI-STAGE INTERCONNECTION NETWORKS HAVING SMALLER MEMORY REQUIREMENTS - In one embodiment, a multistage interconnection network (MIN) has two or more configurable stages, each stage having a plurality of switches. The network has one or more unused input terminals, each mapped using fixed switch connections to an unused output terminal. The network also has a set of used input terminals that are selectively mapped to a set of used output terminals based on values of control signals supplied to the stages. Each stage receives a different control signal, and each control signal is generated by cyclically shifting a control seed by a corresponding cyclic-shift value. Fixing the mappings of the unused terminals ensures that the used input terminals are not mapped to any unused output terminals. By storing only the control seed, memory requirements are reduced over networks that explicitly store individual control signals for all of the stages. | 05-10-2012 |
20120163376 | METHODS AND APPARATUS TO ROUTE FIBRE CHANNEL FRAMES USING REDUCED FORWARDING STATE ON AN FCOE-TO-FC GATEWAY - In one embodiment, an apparatus includes a switching policy module configured to define a switching policy associating a Fibre Channel port with a destination Media Access Control (MAC) address. The switching module can be configured to receive a Fibre Channel over Ethernet (FCoE) frame from a network device and send a Fibre Channel frame encapsulated in the FCoE frame to the Fibre Channel port based at least in part on the switching policy and a destination MAC address of the FCoE frame. | 06-28-2012 |
20120269190 | VLSI Layouts of Fully Connected Generalized and Pyramid Networks with Locality Exploitation - VLSI layouts of generalized multi-stage and pyramid networks for broadcast, unicast and multicast connections are presented using only horizontal and vertical links with spacial locality exploitation. The VLSI layouts employ shuffle exchange links where outlet links of cross links from switches in a stage in one sub-integrated circuit block are connected to inlet links of switches in the succeeding stage in another sub-integrated circuit block so that said cross links are either vertical links or horizontal and vice versa. Furthermore the shuffle exchange links are employed between different sub-integrated circuit blocks so that spacially nearer sub-integrated circuit blocks are connected with shorter links compared to the shuffle exchange links between spacially farther sub-integrated circuit blocks. In one embodiment the sub-integrated circuit blocks are arranged in a hypercube arrangement in a two-dimensional plane. The VLSI layouts exploit the benefits of significantly lower cross points, lower signal latency, lower power and full connectivity with significantly fast compilation. | 10-25-2012 |
20120269191 | SYSTEM AND METHOD FOR IMPLEMENTING A MULTISTAGE NETWORK USING A TWO-DIMENSIONAL ARRAY OF TILES - A network, including: a first tile having a processor, a first top brick connected to the processor, a first bottom brick, and a first intermediate brick; a second tile having a second intermediate brick and a second bottom brick; multiple connections connecting the first top brick with the second intermediate brick and the first intermediate brick with the second bottom brick using a passthrough on an intermediate tile between the first and second tiles, where the first, the intermediate, and the second tiles are positioned in a row; and a third tile having a plurality of caches connected to a third bottom brick, where the second and third tiles are positioned in a column, and the first bottom brick, the second bottom brick, and the third bottom brick belong to a bottom layer of the network, and where the first and second intermediate bricks belong to an intermediate layer of the network. | 10-25-2012 |
20120287927 | STRICT-SENSE MINIMAL SPANNING SWITCH NON-BLOCKING ARCHITECTURE - The present invention discloses an apparatus to implement a m=n Non-Blocking Minimal Spanning Switch, where n=the total number of data input signals and m=the total number of data output signals and m=the number of crossbar connections in each switch. Data is input to the switch as a plurality of frames, whereby each crossbar connection contains a framer which detects framing patterns in the data. Skewed data is re-aligned and buffered so that the data output by each crossbar connection is equal and identical, thus any crossbar connection may be used to ensure a connection, eliminating the possibility of data interrupts. | 11-15-2012 |
20130003726 | METHODS AND APPARATUS RELATED TO A FLEXIBLE DATA CENTER SECURITY ARCHITECTURE - In one embodiment, edge devices can be configured to be coupled to a multi-stage switch fabric and peripheral processing devices. The edge devices and the multi-stage switch fabric can collectively define a single logical entity. A first edge device from the edge devices can be configured to be coupled to a first peripheral processing device from the peripheral processing devices. The second edge device from the edge devices can be configured to be coupled to a second peripheral processing device from the peripheral processing devices. The first edge device can be configured such that virtual resources including a first virtual resource can be defined at the first peripheral processing device. A network management module coupled to the edge devices and configured to provision the virtual resources such that the first virtual resource can be migrated from the first peripheral processing device to the second peripheral processing device. | 01-03-2013 |
20130083793 | SCALABLE 3-STAGE CROSSBAR SWITCH - Systems and methods are presented relating to a three stage crossbar based switching system and a scheduling method for transmission of data packets and associated request and grant tokens. The first stage and third stage portions of the switching system contain TDM crossbars, which are interconnected by a middle stage set of crossbars. In an embodiment, the system switching module is a m×m crossbar switch comprising m inputs and m outputs. The switch has a size m | 04-04-2013 |
20130223440 | DISJOINT MULTI-PATHING FOR A DATA CENTER NETWORK - According to one embodiment, a data center fabric network system includes a controller, a plurality of switches connected to the controller via a plurality of communication links, a source device connected to at least a first switch of the plurality of switches, a destination device connected to at least a second switch of the plurality of switches, and wherein the controller is adapted for: creating a topology of the data center fabric network system, determining paths between the plurality of switches, calculating one or more disjoint multi-paths from the source device to the destination device based on the topology, and writing the one or more disjoint multi-paths into a forwarding table of at least one of: the source device, the first switch, and a nearest shared switch to the source device. | 08-29-2013 |
20130272300 | STRICT-SENSE MINIMAL SPANNING SWITCH NON-BLOCKING ARCHITECTURE - The present invention discloses an apparatus to implement a m=n Non-Blocking Minimal Spanning Switch, where n=the total number of data input signals and m=the total number of data output signals and m=the number of crossbar connections in each switch. Data is input to the switch as a plurality of frames, whereby each crossbar connection contains a framer which detects framing patterns in the data. Skewed data is re-aligned and buffered so that the data output by each crossbar connection is equal and identical, thus any crossbar connection may be used to ensure a connection, eliminating the possibility of data interrupts. | 10-17-2013 |
20130301639 | NETWORK OF SWITCHES AND PAYLOAD OF TELECOMMUNICATIONS SATELLITE COMPRISING A NETWORK OF SWITCHES - A network of switches includes N input accesses and M output accesses, with each of the switches including four ports and with the network input and output accesses being connection switch ports. The network includes at least one stage of switches, with each stage including: a pair of switch lines whose ports are not used as network input or output accesses, referred to as “interconnection switches”, a line being a set of interconnection switches connected to one another; and at least two transverse arms linking interconnection switches of different lines, a transverse arm consisting of elements that are separate from those of the other transverse arms, a transverse arm including at least two links and a switch, referred to as “transverse switch” with the connection switches being transverse switches. At least two transverse switches from different transverse arms of each stage are connection switches of the network. | 11-14-2013 |
20140376546 | Switch Routing Algorithm - A method using a computer in conjunction with a non-transitory computer readable storage medium is provided comprising a computer receiving a message for forwarding at an ingress switch of a multi-stage circuit switching network. The method also comprises computer executing a first routing algorithm in transmitting the message, the algorithm comprising the computer determining at least one availability matrix for each middle switch, wherein a given middle switch comprises a switch between ingress and egress switches of the network. The method also comprises the computer assigning resources to a selected middle switch and updating the availability matrix and causing the ingress switch to transmit the message via the middle switch based on determining a first availability matrix for the middle switch using the algorithm wherein the algorithm is executed to forward messages on at least one of unicast, fan-in, and fan-out bases and minimize blocking and imbalance on middle switches. | 12-25-2014 |