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| Number | Title | Issue Date |
| 8189575 | Modular scalable switch architecture A scalable Ethernet switch includes modules which can be interconnected to provide a single, virtual switch. The modules may be of uniform physical size and shape relative to a standard telecommunications rack. When greater capacity is required, an additional module... | 05/29/2012 |
| 8165112 | 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 t... | 04/24/2012 |
| 8149825 | Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones A packet-based, hierarchical communication system, arranged in a spanning tree configuration, is described in which wired and wireless communication networks exhibiting substantially different characteristics are employed in an overall scheme to link portable or mob... | 04/03/2012 |
| 8135004 | Multi-plane cell switch fabric system Disclosed herewith is a multi-plane cell switch fabric system in which each switching unit functions asynchronously with others. The system executes distribution/restoration operations without lowering the switching capacity to reorder cells that arrive in random or... | 03/13/2012 |
| 8107468 | Non-blocking multicast switching system and a method for designing thereof 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 c... | 01/31/2012 |
| 8059640 | 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 lo... | 11/15/2011 |
| 8059639 | Switch matrix A switch matrix for selectively connecting at least one of N signal inputs to at least one of M signal outputs, N and M being integers greater than two, includes a cluster of N input switches arranged about each of the M signal outputs resulting in at least M cluste... | 11/15/2011 |
| RE42600 | Scheduling the dispatch of cells in non-empty virtual output queues of multistage switches using a pipelined arbitration scheme A pipeline-based matching scheduling approach for input-buffered switches relaxes the timing constraint for arbitration with matching schemes, such as CRRD and CMSD. In the new approach, arbitration may operate in a pipelined manner. Each sub-scheduler is allowed to... | 08/09/2011 |
| 7983253 | Time-space carrier sense multiple access A scalable switch, a system of switches and methods, configured to sense a carrier at the output of the respective switch. The invention intelligently, and dynamically, controls the connection of a respective switch input to a respective switch output as a function ... | 07/19/2011 |
| 7944914 | Default subscription profile for a roaming terminal device in a packet data based mobile communication network The invention concerns providing a default subscription profile for controlling a roaming terminal device in a packet data based mobile communication network. A roaming terminal device requesting to use a gateway is detected. A request for a subscription profile for... | 05/17/2011 |
| 7929522 | Systems and methods for upgrading scalable switching networks The creation of a variety of upgradeable scalable switching networks are set forth including multistage switching networks as well as novel multidirectional architectures. Systems and methods exploiting the properties such as fault tolerance, upgradeability with out... | 04/19/2011 |
| 7907606 | Multi-plane cell switch fabric system Cells which arrive in random sequence from the asynchronously operating exchange parts are restored into the original by a small amount of hardware. Distributing parts as inputs of a switch fabric manage serial numbers continuous for each destination. The distributi... | 03/15/2011 |
| 7864757 | Packet switching A packet switch having plural input sectors and output sectors, each input sector being arranged to hold at least one queue per output sector, each output sector having plural output ports and being arranged to hold at least one queue per output port wherein the inp... | 01/04/2011 |
| 7852836 | Reduced arbitration routing system and method A system and method for routing packets from one node to another node in a system having a plurality of nodes connected by a network. A node router is provided in each node, wherein the node router includes a plurality of network ports, including a first and a secon... | 12/14/2010 |
| 7813337 | Network packet processing using multi-stage classification Methods and systems for processing packets in data network using multistage classification are disclosed. An example method for processing packets includes receiving a data packet at a first processing stage and examining the packet at the first processing stage to ... | 10/12/2010 |
| 7706361 | Reconfigurable, fault tolerant, multistage interconnect network and protocol A multistage interconnect network (MIN) capable of supporting massive parallel processing, including point-to-point and multicast communications between processor modules (PMs) which are connected to the input and output ports of the network. The network is built us... | 04/27/2010 |
| 7688815 | Method and system for a multi-stage interconnect switch An interconnect switch stores data messages received from one or more source devices and prioritizes the data messages received from each source device based on the order that the data messages were received from the source device. For each available destination dev... | 03/30/2010 |
| 7672301 | Distribution stage for enabling efficient expansion of a switching network A distribution stage is disclosed comprising a plurality of inputs coupled to a plurality of first stage switching devices, a plurality of outputs coupled to a plurality of second stage switching devices, and a distribution configuration. The distribution configurat... | 03/02/2010 |
| 7639679 | Packet-switched system for communication network node To selectively route stand-by packets in input modules to destination output modules via a switching matrix, distributed arbitration functions are executable by successive arbitration cycles. Each cycle comprises: a first phase executable by each input controller to... | 12/29/2009 |
| 7616631 | Method and apparatus for debugging protocol traffic between devices in integrated subsystems A method, apparatus, and computer instructions for a storage subsystem. This subsystem includes controller devices, storage devices, and a communications network. The communications network connects the controller devices and the storage devices. The communications ... | 11/10/2009 |
| 7596135 | Method and apparatus for mixed-cast routing through a Clos-like network Methods and apparatus for routing mixed cast requests through a Clos-like network are disclosed. According to one aspect of the present invention, a method for processing a routing request within a network system includes computing costs associated with input links ... | 09/29/2009 |
| 7586909 | Striping algorithm for switching fabric A striping algorithm selects a route on which to transmit each next data segment, in dependence upon relative channel loading so far, taking account of multicast. Input modules can keep a channel loading history for each route it has, and can update its history for ... | 09/08/2009 |
| 7539184 | Reconfigurable interconnect/switch for selectably coupling network devices, media, and switch fabric A reconfigurable interconnect/switch for selectably coupling network devices, media, and switch fabric. The reconfigurable interconnect/switch enables network devices, such as network processor units (NPUs) to selectively communicate with other NPUs, media (via a me... | 05/26/2009 |
| 7519054 | Replication of multicast data packets in a multi-stage switching system In general, in one aspect, the disclosure describes a multi-stage switch having at least one ingress switch module to receive data and to generate frames that are transmitted as a wavelength division multiplexed signal. The multi-stage switch further includes a core... | 04/14/2009 |
| 7486669 | Method for accessing a multi-stage switch for use as a single-stage switch A method and system for enabling a multi-stage switch to be adapted for single-stage switch applications. An interface manager manages the hardware interface for the multi-stage switch. The multi-stage switch includes input ports and output ports, and an input signa... | 02/03/2009 |
| 7468974 | Efficient strictly non-blocking multicast switch architecture for time division multiplexed traffic A Forward Propagation Architecture is a novel switch architecture based on well-known unicast switching architectures, and provides two desirable properties: (1) no rearrangement of established calls is ever required and (2) the architecture is strictly non-blocking... | 12/23/2008 |
| 7463626 | Phase and frequency drift and jitter compensation in a distributed telecommunications switch Methods and apparatus for phase and frequency drift and jitter compensation in a distributed switch which carries both TDM and packet data are disclosed. The methods include the insertion of programmable fill times at different stages of the switch to allow buffers ... | 12/09/2008 |
| 7460529 | Interconnection fabric using switching networks in hierarchy An interconnection fabric using switching networks hierarchically to allow interconnections of large number of a first plurality of conductors to a large number of k plurality of conductors is described. The resulting interconnection fabric can be used in switching ... | 12/02/2008 |
| 7443844 | Switched fabric mezzanine storage module A switched fabric mezzanine storage module (560) includes a storage module (562) and a switched fabric connector (563) coupled to the storage module. The storage module is coupled to directly communicate with a switched fabric (506), wher... | 10/28/2008 |
| 7443843 | Terminal relay device and relay method An apparatus has a cross connection circuit, first switching sections located on the input side of the cross connection circuit to switch a presently-used transmission path and a reserve transmission path, and second switching sections located on the output side of ... | 10/28/2008 |
| 7440450 | Payload module having a switched fabric enabled mezzanine card A multi-service platform system, includes a backplane (104), a switched fabric (106) on the backplane, and at least one of a VMEbus network and a PCI network coincident with the switched fabric on the backplane. A payload module (102) has one of... | 10/21/2008 |
| 7440449 | High speed switching module comprised of stacked layers incorporating t-connect structures A compact multi-stage switching network (100), and a router (510) incorporating such multi-stage switching network, adapted for simultaneously routing a plurality of data packets from a first plurality of input ports (110) to selected ones of a ... | 10/21/2008 |
| 7426205 | No-addressing modular-assembly Ethernet switch with a G.Link An Ethernet switch has a header device with a crossbar device and a number of downstream interface modules with a first number of a series of ports and a second number of a series of ports, respectively, such that in each case the same one in the series of the first... | 09/16/2008 |
| 7424010 | Strictly nonblocking multicast multi-split linear-time multi-stage networks In one embodiment, a controller is configured to establish a new multicast connection within a network without changing a path of an existing multicast connection within the network. The network can have an input stage having a total of at least n1*r... | 09/09/2008 |
| 7424011 | Rearrangeably nonblocking multicast multi-stage networks A rearrangeably nonblocking multicast network includes an input stage having r1 switches and n1 inlet links for each of r1 switches, an output stage having r2 switches and n2 outlet links for each of r2 | 09/09/2008 |
| 7420969 | Network switch with a parallel shared memory A network switch includes an input layer to receive a data stream with a set of cells. Each cell includes data and a header to designate a destination device. The input layer includes a set of input layer circuits. A selected input layer circuit of the set of input ... | 09/02/2008 |
| 7420968 | High-speed switch architecture A system of switch modules contains input demultiplexers connected to ports on each of the modules and output multiplexers connected to each of the modules. Each module has output and input interfaces for mesh links and at least one output interface is looped back t... | 09/02/2008 |
| 7420970 | Read ports and methods of outputting data via read ports A read port for selectively coupling one of a plurality of inputs to an output is disclosed. The read port comprises: a plurality of inputs; an output; a plurality of multiplexers operable to selectively couple a selected input to said output; and a multiplexer cont... | 09/02/2008 |
| 7406075 | Crossbar switch, method for controlling operation thereof, and program for controlling operation thereof A small cost-effective crossbar switch is provided. A switch circuit is disposed in each of a plurality of nodes which are cascade connected with each other in a plurality of stages. Each switch circuit receives from a node of a previous stage a designated address t... | 07/29/2008 |
| 7403473 | Method and apparatus for accelerated protection switching in a multi-switch network element Accelerated protection switching in a multi-platform network switch may be achieved by allocating connectivity slots from the port cards to the switch cards for all states of a connection through the switch and forming maps of the allocations for use by the port car... | 07/22/2008 |
