Bridge Between Bus Systems Patents (Class 370/402)
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Publication number: 20140269710Abstract: An extended bridge structure that includes a controlling bridge and port extenders is disclosed. A port extender according to some embodiments of the present invention includes a processor that processes receives packets in a way that executes at least one procedure that substitutes for a function of the controlling bridge. A controlling bridge according to the present invention provides data to the port extender that enables it to execute the at least one procedure that substitutes for a function of the controlling bridge.Type: ApplicationFiled: March 12, 2013Publication date: September 18, 2014Inventors: Shivakumar Sundaram, Krishnamurthy Subramanian, Anoop Ghanwani, Pathangi Narasimhan Janardhanan, Mohnish Anumala, Raja Jayakumar
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Patent number: 8837447Abstract: A method of forming ad hoc RSI hierarchical communication networks among pluralities of wireless transceivers includes assigning to each of the transceivers one or more common designations. A network organization routine of the transceivers operates to establish hierarchical networks based on the transceivers' common designations, resulting in a logical network organization that provides efficiencies for acquiring information from particular transceivers that share a common designation. Each transceiver's common designation is used by a digital processor of the transceiver to selectively receive data packets that are intended for receipt by transceivers sharing the particular common designation. Such a “common designation” network reduces power consumption and signal interference thereby increasing battery life.Type: GrantFiled: September 15, 2012Date of Patent: September 16, 2014Assignee: Google Inc.Inventor: Robert W. Twitchell, Jr.
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Patent number: 8836477Abstract: A portable communication machine includes RF data generating means, RF wireless transmitting means for transmitting transmission data as an RF signal, RF wireless receiving means for receiving an RF signal transmitted from a vehicle-mounted machine, RF data analyzing means for analyzing received data, key operating means for instructing to control a vehicle by a user, storing means for storing control data of a vehicle-mounted information apparatus, attachable/detachable external apparatus communicating means, and controlling means for controlling the RF data generating means, the RF data analyzing means, the key operating means and the external apparatus communicating means, and is used along with an external apparatus and the vehicle-mounted information apparatus.Type: GrantFiled: April 4, 2008Date of Patent: September 16, 2014Assignee: Mitsubishi Electric CorporationInventor: Masanobu Hiramine
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Patent number: 8831021Abstract: A bridge interfaces a first network protocol and a second network interface protocol. Each of a plurality of mapping windows is defined by corresponding mapping parameters defining a space in the first protocol and defining the mapping window translation rules to the second network protocol. Transaction requests in the first network protocol are selectively associated with the mapping windows.Type: GrantFiled: September 25, 2011Date of Patent: September 9, 2014Assignee: QUALCOMM IncorporatedInventors: Vinoth Kumar Deivasigamani, Brent Gene Duckering, Chung Chih Chen
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Patent number: 8831015Abstract: Systems, methods, and apparatus for sharing resources for a network bridge configured to perform communications on a MoCA network and a WiFi network using the shared resources. The method includes: receiving a MAP from a MoCA NC and checking the MAP to determine whether the MoCA NC has scheduled MoCA communications in an upcoming MAP cycle; in instances where the MAP indicates that the MoCA NC has scheduled MoCA communications in an upcoming MAP cycle, configuring the shared network bridge resources for MoCA communications: in instances where the MAP indicates that the MoCA NC has not scheduled any MoCA communications in an upcoming MAP cycle, configuring the shared network bridge resources for WiFi communications; at the conclusion of a WiFi communication period, sending a CTS to the WiFi devices an the network and configuring the shared network bridge resources for WiFi communications.Type: GrantFiled: August 19, 2011Date of Patent: September 9, 2014Assignee: Entropic Communications, Inc.Inventors: Branislav Petrovic, Changwen Liu, Zong Liang Wu
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Patent number: 8812708Abstract: In one embodiment, a method includes detecting a change in network topology and broadcasting a transient unconditional unpruning message to all nodes in the network. The message is configured to instruct each network element receiving the message to start a phase timer in response to the broadcast message; unprune its operational ports; and, upon expiration of the phase timer, prune its ports in accordance with the results of a pruning protocol.Type: GrantFiled: July 22, 2011Date of Patent: August 19, 2014Assignee: Cisco Technology, Inc.Inventors: Chiajen Tsai, Norman Finn, Yibin Yang, Nagabhushan K. Channabasappa, Debashis Patnala Rao
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Patent number: 8797150Abstract: A real-time management networking system for a manufacturing environment, e.g., chemical, assembly, automobile, electronic, petroleum. In a specific embodiment, the system has a spatial region, which is adapted for one or more manufacturing equipment devices. The one or more manufacturing equipment devices is associated with a manufacture of a product. In a specific embodiment, the manufacturing equipment is able to generate a high frequency noise, which causes interference with a conventional data signal, which is often unshielded. In a specific embodiment, the system has a power line gateway device provided within a desired region of the spatial region.Type: GrantFiled: August 24, 2007Date of Patent: August 5, 2014Assignee: Asoka USA CorporationInventor: Tat Keung Chan
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Patent number: 8792508Abstract: A subscriber of a communication system includes a microprocessor, at least two communication controllers and a peripheral bus. The microprocessor is connected to the communication controllers via the peripheral bus and is also connected via the communication controllers respectively to a communication link of the communication system, via which messages are transmitted. In order to optimize the gateway functionality within the subscriber, a provision is made that at least one of the communication controllers has an active interface via which the communication controller is connected to the peripheral bus and has a logic circuit for independently implementing a gateway functionality.Type: GrantFiled: October 4, 2006Date of Patent: July 29, 2014Assignee: Robert Bosch GmbHInventors: Markus Ihle, Tobias Lorenz, Jan Taube
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Patent number: 8755395Abstract: Systems and methods are disclosed which provide wireless communication systems implementing subsystems adapted for flexible deployment configurations and to resist the introduction of interference. Preferred embodiments of the present invention provide a wireless communication system configuration in which an ODU subsystem is coupled to an IDU subsystem using a fiber optic link. According to a preferred embodiment of the present invention, an ODU subsystem is adapted to provide conversion between digital and analog to thereby facilitate the use of a digital link between the ODU subsystem and a corresponding IDU subsystem. Embodiments of the present invention utilize a plurality of ODU subsystems configured according to the present invention to provide wireless communication coverage of a service area, such as to provide a wireless application termination system (WATS) hub for use in providing wireless communication links with respect to a plurality of subscriber units.Type: GrantFiled: July 6, 2010Date of Patent: June 17, 2014Assignee: NETGEAR, IncInventors: David Prager, Bruce C. Rothaar, Heinz Lycklama A'nyeholt, Dave Randall
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Patent number: 8750322Abstract: A communication system includes a user equipment (UE) and a gateway. The UE sends data packets on one or more bearers to the gateway. One or more packet filters are installed in the UE for associating the data packets with the bearers. A decision is performed if installation of a new packet filter in the UE is required to map the data packets of indicated data traffic to a particular bearer. The result of the decision may then be indicated from a policy controller to a gateway and/or from the gateway to the UE. Depending on the result of the decision, the gateway may initiate signaling of the new packet filter to the UE and/or the UE may install the new packet filter.Type: GrantFiled: August 21, 2013Date of Patent: June 10, 2014Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Peter Hedman, Hans Mattsson, Reiner Ludwig, Lars Lovsen, Maria Belen Pancorbo Marcos
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Patent number: 8743894Abstract: A method of operating a computer system comprising a bridge port between a hardware local area network (LAN) and a virtual switch includes providing a first hash table by the hardware LAN to the virtual switch via the bridge port, wherein the first hash table comprises addresses of a first plurality of VMs that comprise the hardware LAN, wherein the first plurality of VMs communicate with the hardware LAN via respective hardware network interface cards (NICs); and updating a second hash table in the virtual switch to include the addresses of the first hash table, wherein the second hash table further comprises addresses of a second plurality of VMs of the virtual switch, wherein the second plurality of VMs communicate with the virtual switch via respective virtual NICs.Type: GrantFiled: October 30, 2012Date of Patent: June 3, 2014Assignee: International Business Machines CorporationInventors: Waleri Fomin, Angelo Macchiano, Richard P. Tarcza, Alexandra Winter
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Patent number: 8719361Abstract: A relay device includes: memories, each memory being operable to store at least a data pair formed of a MAC address and a port number; a search unit to search only amongst ones of the memories having valid data pairs when searching for a port number based upon a MAC address; a data moving unit to move valid data pairs to different locations within the plurality of memories in order to reduce a total number of memories, amongst the plurality thereof, having valid data pairs; and a power supply controller to selectively stop supplying power to ones of the memories storing only invalid data.Type: GrantFiled: August 12, 2010Date of Patent: May 6, 2014Assignee: Fujitsu LimitedInventors: Yasushi Umezawa, Takeshi Shimizu, Takashi Miyoshi
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Patent number: 8718074Abstract: Included are methods for facilitating routing of control data associated with a communication to a plurality of recorders. One such method, among others, includes receiving control data related to a communication and routing the received control data to at least one recorder via a layer 3 protocol.Type: GrantFiled: April 19, 2010Date of Patent: May 6, 2014Assignee: Verint Americas Inc.Inventors: Jamie Richard Williams, Thomas Z. Dong
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Patent number: 8706837Abstract: An SAS domain map is automatically generated at an SAS concentrator switch by a virtual mapping device that presents itself as a target for discovery by SAS devices interfaced with the concentrator, such as information handling systems and storage devices. During the SAS protocol discovery process, the virtual mapping device generates the SAS domain map by acquiring the device name and the device port for each concentrator port that interfaces with a device. A management application running on the concentrator applies the SAS domain map to provide network functions, such as zoning or diagnostics.Type: GrantFiled: March 21, 2011Date of Patent: April 22, 2014Assignee: Dell Products L.P.Inventors: Rohit Chawla, Gaurav Chawla, Farzad Khosrowpour
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Patent number: 8704408Abstract: A method that includes identifying a desired signal connectivity through a switch matrix, where the switch matrix includes a plurality of switching elements, and where the switching elements are selectively operable in a plurality of states to provide a plurality of signal paths for routing signals through the switch matrix. The method also includes identifying a sorting network model that corresponds to a topology of the switch matrix, applying a sorting algorithm to the sorting network model, and determining, based on the results of applying the sorting algorithm, operational states of the plurality of switching elements to provide signal paths corresponding to the desired signal connectivity.Type: GrantFiled: April 14, 2011Date of Patent: April 22, 2014Assignee: National Instruments CorporationInventors: Alvin G. Becker, James A. Reimund, Naji S. Norder, James E. Nicholson, Kyle R. Bryson
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Patent number: 8705548Abstract: There is provided a method for the transmission of data via a bus network to which a plurality of subscribers are connected. The method includes a first step of transmitting data from at least one subscriber, e.g., Master, to at least another subscriber, e.g., TNx or STNx, by employing a data transmission protocol designed for point-to-point transmission. The method includes a second step of defining a broadcast message, within which selected data can be transmitted in a broadcast transmission mode, within the point-to-point transmission protocol. In a supplementary or alternative embodiment, the method includes inserting a safety broadcast message in addition to a standard or general broadcast protocol. There is also provided an apparatus for transmission of data via a bus network.Type: GrantFiled: August 16, 2004Date of Patent: April 22, 2014Assignee: Phoenix Contact GmbH & Co. KGInventor: Karsten Meyer-Gräfe
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Patent number: 8683285Abstract: In a first embodiment of the present invention, a method for error-correcting in a parallel interconnect transmitting device is provided, the method comprising: detecting a frame transition in a transmission from the transmitting device to a parallel interconnect receiving device; tracking time between the frame transition and a transition of a response signal corresponding to the frame transition received from the receiving device; detecting an error in the transmission; and restarting a portion of the transmission in response to the error, wherein the size of the portion of the transmission to restart is based upon the tracked time between the frame transition and the transition of a response signal corresponding to the frame transition.Type: GrantFiled: December 29, 2010Date of Patent: March 25, 2014Assignee: PLX Technology, Inc.Inventor: Jack Regula
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Patent number: 8675671Abstract: A system for managing voice and data communications for at least one user is coupled to at least one wide area telecommunications network and includes at least a processor and data storage resources. A first bus is adapted to couple video data between the system and a video unit coupled to the system under control of the processor. A second bus is adapted to couple audio data between the system and a microphone unit coupled to the system under control of the processor, and audio data are coupled to a TDM bus in the system operating under control of the processor. A digital transmission link of the wide area telecommunications network couples the video and audio data from the system, under control of the processor. A user participates in a video call with the video data, while concurrently the user participates in a telephone call with the audio data.Type: GrantFiled: December 9, 2011Date of Patent: March 18, 2014Assignee: RPX CorporationInventors: Edward T. Nelson, Scott K. Pickett
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Patent number: 8675668Abstract: Methods, systems, and products share content between a device and a media delivery device. The media delivery device includes a content sharing application stored in memory and a processor communicating with the memory. The processor sends a presence update message to indicate the media delivery device is active and available to receive content. The processor receives an invite, and the invite requests a session between the media delivery device and the device. The processor sends an accept message to accept the invitation. The processor receives the content and receives a message that terminates the session.Type: GrantFiled: December 29, 2009Date of Patent: March 18, 2014Assignee: AT&T Intellectual Property I, L.P.Inventors: Douglas B. Alston, William Gaylord
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Patent number: 8670451Abstract: A virtual interface having a global address of a physical interface on an Internet side of a gateway is provided in a terminal. An application unit of the terminal transmits a packet to the Internet using the virtual interface. The packet is transferred to the gateway through a downlink transfer path. The gateway transmits the packet from the physical interface on the Internet side to the Internet.Type: GrantFiled: June 12, 2006Date of Patent: March 11, 2014Assignee: Fujitsu LimitedInventors: Takeshi Kodama, Tetsumei Tsuruoka, Naoki Oguchi
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Patent number: 8667095Abstract: Various systems and methods for automatically configuring network devices coupled to a network that provides (or is capable of providing) multipoint virtual connections are disclosed. One such method involves receiving information identifying a plurality of virtual connections (VCs) available within a network. The method identifies a set of one or more nodes that are configured with one of several Internet Protocol (IP) subnets and that have access to one of the VCs, and then assigns each of the IP subnets to a unique one of the VCs.Type: GrantFiled: November 9, 2007Date of Patent: March 4, 2014Assignee: Cisco Technology, Inc.Inventors: Robert W. Klessig, Cedric H. Druce
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Patent number: 8667196Abstract: A method and apparatus are provided for mapping addresses between one or more slave devices and at least one corresponding master device in a multilayer interconnect system including a plurality of bus matrices for interfacing between the one or more slave devices and the master device. The method and apparatus are operative for receiving an address map corresponding to the system, receiving information regarding connectivity of one or more slave devices through at least one of the bus matrices, determining whether the master device has more than one default slave unit associated therewith, and, when the master device has more than one default slave unit associated therewith, generating first and second address mappings and configuring the system to have no more than one default slave unit per master device.Type: GrantFiled: April 25, 2012Date of Patent: March 4, 2014Assignee: LSI CorporationInventors: Srinivasa Rao Kothamasu, Debjit Roy Choudhury, Dharmesh Kishor Tirthdasani, Sajith Kizhakke Kalathil Achuthan Kutty, Jean Jacob
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Patent number: 8660115Abstract: The present invention is directed to mechanisms for content-aware redirection and content exchange/content discovery that permit a request for content to be redirected to a particular advantageous server that can serve the content.Type: GrantFiled: September 14, 2012Date of Patent: February 25, 2014Assignee: AT&T Intellectual Property II, L.P.Inventors: Charles D. Cranor, Raman Gopalakrishnan, Matthew D. Green, Charles Robert Kalmanek, Jr., David Hilton Shur, Sandeep Sibal, Jacobus E. van der Merwe
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Patent number: 8625586Abstract: A circuit comprising: a device determiner configured to, in a first mode of operation, receive a device selection signal via at least one of: at least one control line and at least one signal line; and a device router configured to, in a second mode of operation, route signals between the at least one of: at least one control line and at least one signal line and at least one device dependent on the device selection signal.Type: GrantFiled: December 31, 2010Date of Patent: January 7, 2014Assignee: STMicroelectronics International N.V.Inventors: Gaurav Mathur, Pratik Damle
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Patent number: 8594100Abstract: Systems and methods to forward data frames are provided. A particular method may include receiving a data frame at a distributed virtual bridge. The distributed virtual bridge includes a first bridge element coupled to a first server computer and a second bridge element coupled to the first bridge element and to a second server computer. The distributed virtual bridge further includes a controlling bridge coupled to the first bridge element and to the second bridge element. The controlling bridge includes a global forwarding table. The data frame is forwarded from the first bridge element to the second bridge element of the distributed virtual bridge using address data associated with the data frame. A logical network associated with the frame may additionally be used to forward the data frame.Type: GrantFiled: March 31, 2010Date of Patent: November 26, 2013Assignee: International Business Machines CorporationInventors: William J. Armstrong, Claude Basso, David R. Engebretsen, Kyle A. Lucke, Jeffrey J. Lynch, David A. Shedivy, Colin B. Verrilli, Bruce M. Walk
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Patent number: 8588213Abstract: Systems and methods by which voice/data communications may occur in multiple modes/protocols are disclosed. In particular, systems and methods are provided for multiple native mode/protocol voice and data transmissions and receptions with a computing system having a multi-bus structure, including, for example, a TDM bus and a packet bus, and multi-protocol framing engines. Such systems preferably include subsystem functions such as PBX, voice mail and other telephony functions, LAN hub and data router or switch functions. In preferred embodiments, a TDM bus and a packet bus are intelligently bridged and managed, thereby enabling such multiple mode/protocol voice and data transmissions to be intelligently managed and controlled with a single, integrated system.Type: GrantFiled: November 30, 2009Date of Patent: November 19, 2013Assignee: RPX CorporationInventors: Gregory E. Pounds, William D. Strauss, Scott K. Pickett
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Patent number: 8582587Abstract: A data communication apparatus to be coupled to a first network and a Multiprotocol Label Switching (MPLS) network, includes a receiving unit which receives a data including header information indicating a destination and first header information used to identify a first Virtual Private Network (VPN) in the first network. The apparatus also includes a transmitter which transmits data having added thereto a MPLS header information used to identify one of the plurality of second VPNs in the MPLS network, the MPLS header information corresponding to both the header information indicating the destination and the first header information used to identify the first VPN in the first network included in the received data.Type: GrantFiled: July 8, 2011Date of Patent: November 12, 2013Assignee: Hitachi, Ltd.Inventors: Kenichi Sakamoto, Kazuyoshi Hoshino, Kojii Wakayama, Shiro Tanabe, Noboru Endo
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Patent number: 8576840Abstract: This document describes tools that assign packets to a network service. The tools receive a control packet lacking a tag associating the control packet with a network service and assign the control packet to a network service by adding a tag to the control packet. The tools may also receive a tagged data packet on a port and determine that the tag does not match any of a set of network tags associated with the port. Consequently, the tools assign the data packet to a default network service. The tools may also receive a set of conditions for a port and assign data packets received on the port that satisfy one of the conditions to a network service associated with the satisfied condition and data packets that do not satisfy one of the conditions to a default network service.Type: GrantFiled: November 13, 2006Date of Patent: November 5, 2013Assignee: World Wide Packets, Inc.Inventors: Loren Douglas Larsen, Andrew P. Schultz
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Patent number: 8571044Abstract: A gateway for data transfer between serial buses, including multiple communication modules that are each provided for connection of one serial bus, and that carry out a conversion between data packets and data words, a bus master that, via an internal control bus, controls a word-based transfer of data via an internal data bus between two communication modules, the bus master applying a source address via a source address bus to an internally transmitting first communication module, and a destination address via a separate destination address bus to an internally receiving second communication module, data received in data packets by the first communication module via a first serial bus connected thereto being transferred from the first communication module directly without buffering, in word-based fashion in one or more data words, via the internal data bus to the second communication module, which delivers these transferred data, in data packets, via a second serial bus connected to the second communicationType: GrantFiled: April 17, 2007Date of Patent: October 29, 2013Assignee: Robert Bosch GmbHInventors: Markus Ihle, Tobias Lorenz, Jan Taube
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Patent number: 8553572Abstract: A method for optimizing the throughput of TCP/IP applications by aggregating user application data and consolidating multiple TCP/IP connection streams into a single optimized stream for delivery to a destination application. Optimization of the internet protocol uses a packet interceptor to intercept packets from a source application, a packet driver to aggregate the intercepted packets, a data mover to transport the aggregated packets to another data mover at the destination, a destination packet driver to disaggregate the transported aggregated packets, and a destination end processor to deliver the disaggregated IP packets to the destination application.Type: GrantFiled: September 9, 2004Date of Patent: October 8, 2013Assignee: Hyperdata Technologies, Inc.Inventors: Richard S. Farrell, David J. Reiland, James R. Signorelli
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Patent number: 8554187Abstract: An apparatus and method for testing communication capabilities of networks and devices are provided. According to one aspect, an interface device for providing communications between a first and a second device comprises an input, logic, and an output. The input of the interface device receives data in a first format from the first device. The logic identifies the second device for receiving the data and identifies a second format compatible with the second device. The data is then translated to the second format. The logic may also determine a status of the interface device by testing components of the interface device to determine if the components are accessible and functioning. The output of the interface device then transmits the translated data to the second device.Type: GrantFiled: August 11, 2010Date of Patent: October 8, 2013Assignee: AT&T Intellectual Property I, L.P.Inventors: Steven Tischer, Samuel N. Zellner, Robert J. Starr
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Publication number: 20130259062Abstract: A protocol bridge includes a cache for caching data from a plurality of data storage devices, and for servicing data requests from a plurality of initiators. Data is cached for every data access operation such that the most frequently accessed data remains replicated in the cache.Type: ApplicationFiled: March 30, 2012Publication date: October 3, 2013Applicant: LSI CORPORATIONInventors: Brett Henning, Scott Dominguez, Jason McGinley, Edoardo Daelli, Matthew Freel
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Patent number: 8547849Abstract: A telecommunications system comprises an asynchronous transfer mode (ATM) network having uncommitted bandwidth, and a plurality of adaptive grooming routers (AGR) coupled to the network. The AGRs comprise a group adapted to function as a virtual transit exchange whose fabric and control are distributed over the group. The visual comprising the AGRs incorporates independent connection control and call routing functions and has means for determining the current system status whereby to set up narrow band connections across the ATM network based on that status determination.Type: GrantFiled: June 7, 2007Date of Patent: October 1, 2013Assignee: Rockstar Consortium US LPInventors: Simon Daniel Brueckheimer, David John Stacey, Roy Harold Mauger
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Patent number: 8543554Abstract: Roughly described, a database accelerator is installed in a network having client systems which makes database queries to a particular IP address and port, and database servers which accept queries received at an IP address and port. The accelerator includes a cache, and is arranged to receive, through a network port, a database query made by a client system and directed to the particular IP address and port, return response data from the cache if available there, and if not, then forward the query through a network port to the database servers. Upon receipt of response data from the servers, the accelerator can retain it in its cache in addition to forwarding it back to the client. By installing the accelerator transparently in the network, no changes are required to either the client or server software in order to add query caching functionality to an existing client/server database arrangement.Type: GrantFiled: August 10, 2010Date of Patent: September 24, 2013Assignee: ScalArc Inc.Inventors: Varun Singh, Uday V. Sawanat, Prateek Goel, Naresh G. Deshaveni
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Patent number: 8538567Abstract: Even when a system is made to have a configuration in which a plurality of transmission paths are connected to each other, a transmission-impossible time in each transmission path caused by changing a clock source to a device of a different transmission path can be shortened. In an audio signal processing system including first and second networks connected to each other through a bridge device, the bridge device operates as a slave in the first network and as a master in the second network. When the second network is reset, the bridge device starts to operate as a slave in the second network. Then, when continuous reception of an audio transmission frame that another device operating as a master in the second network has transmitted is started, the bridge device resets the first network and starts to operate as a master in the first network.Type: GrantFiled: March 15, 2011Date of Patent: September 17, 2013Assignee: Yamaha CorporationInventors: Kei Nakayama, Yuki Furumoto
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Publication number: 20130235875Abstract: MPLS networks offering PW or VPLS services may be interconnected with Ethernet networks implemented according to 802.1ah or 802.1Qay. The MPLS network may be a core and offer services to the Ethernet access networks, or vise-versa. Additionally, a mixture of different types of access networks may be interconnected by an MPLS core or an Ethernet core. Both network interworking and service interworking are provided. OAM fault detection may be implemented via maintenance entities extending across the network or end to end depending on the combination of networks and services offered by the networks.Type: ApplicationFiled: April 18, 2013Publication date: September 12, 2013Applicant: Rockstar Consortium US LPInventors: Dinesh MOHAN, Gerald SMALLEGANGE, Paul UNBEHAGEN, Nigel BRAGG
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Patent number: 8532119Abstract: A Fiber Channel router used to join fabrics. EX_ports are used to connect to the fabrics. The EX_port joins the fabric but the router will not merge into the fabric. Ports in the Fiber Channel router can be in a fabric, but other ports can be connected to other fabrics. Fiber Channel routers can be interconnected using a backbone fabric. Global, interfabric and encapsulation headers are developed to allow routing by conventional Fiber Channel switch devices in the backbone fabric and simplify Fiber Channel router routing. Phantom domains and devices must be developed for each of the fabrics being interconnected. Front phantom domains are present at each port directly connected to a fabric. Each of these is then connected to at least one translate phantom domain. Zoning is accomplished by use of a special LSAN zoning naming convention. This allows each administrator to independently define devices are accessible.Type: GrantFiled: July 30, 2004Date of Patent: September 10, 2013Assignee: Brocade Communications Systems, Inc.Inventors: Robert Norman Snively, Steven L. Wilson, Edward D. McClanahan, Dennis Hideo Makishima, Daniel Ji Yong Park Chung
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Patent number: 8520687Abstract: A method for identifying alternate end-to-end media paths through internet protocol realms using substitute session description protocol parameters is disclosed. The method includes receiving an session description protocol offer, including a list of previously traversed through internet protocol realms. The method continues with determining the next internet protocol realm for a media path based on unspecified signaling criteria. Finally, the method includes that if the next internet protocol realm to be traversed through is on the list of previously traversed through internet protocol realms, bypassing at least one border gateway associated with the current and previously traversed through internet protocol realms.Type: GrantFiled: July 6, 2007Date of Patent: August 27, 2013Assignee: Alcatel LucentInventor: Richard Paul Ejzak
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Patent number: 8509228Abstract: A method and apparatus for prioritizing source Media Access Control (MAC) address miss processing is described. In one embodiment of the invention, a network bridge receives multiple frames (each including a source MAC address) at multiple ports of multiple line cards. If a source MAC address of a received frame is associated with a different port than which it was received on, the network bridge places a source MAC miss message in a high priority MAC move miss queue. If a source MAC address of a received frame is not associated with any of the ports of the network bridge, the network bridge places a source MAC miss message in a low priority unknown MAC miss queue. The network bridge processes those source MAC miss messages in the high priority queue with a higher priority than processing those source MAC miss messages in the low priority queue.Type: GrantFiled: June 3, 2008Date of Patent: August 13, 2013Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventor: Shriram Srinivasan
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Patent number: 8498293Abstract: Methods and systems for shielding layer two host addresses (e.g., MAC addresses) from a network are provided. A border component interposed between a network of switches and multiple local hosts receives from a first local host a first packet destined for a first destination host. The first local host has a first layer 2 (L2) address and a first layer 3 (L3) address associated therewith. The first packet includes the first L2 address as a source L2 address for the first packet, and includes the first L3 address as a source L3 address for the first packet. The border component shields the first L2 address from the network of switches by replacing the source L2 address for the first packet with a substitute L2 address associated with a communication channel of the border component before sending the first packet to the network of switches.Type: GrantFiled: June 7, 2011Date of Patent: July 30, 2013Assignee: Fortinet, Inc.Inventors: Bert H. Tanaka, Joseph R. Mihelich
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Patent number: 8495224Abstract: Systems and methods relating to managing network addresses. In one implementation, a method is provided. The method includes sending a first request to use a particular network address, sending one or more second requests for respective hardware addresses corresponding to network addresses of one or more network address leases. When a hardware address corresponding to a particular network address lease is received in response to one of the one or more second requests and an acknowledgement of the first request to use the network address is not received determining whether the network address identified by the lease is the same as the network address in the first request, and when the network address is not the same, sending a third request to use the identified network address corresponding to the lease.Type: GrantFiled: December 10, 2007Date of Patent: July 23, 2013Assignee: Apple Inc.Inventor: Dieter Siegmund
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Patent number: 8488594Abstract: According to embodiments of the present invention, there is provided an apparatus and a system for bridging communication signals. According to a non-limiting embodiment of the present invention, there is provided a bridging apparatus comprising a first interface connectable to a first signal source, the first signal source for conveying signals within a first frequency range. The bridging apparatus further comprises a second interface connectable to a second signal source, the second signal source for carrying signals within a second frequency range comprising a subset of the first frequency range. The bridging apparatus further comprises a bridging module having a bridged position in which it connects the first and second interfaces and a disconnected position in which the first and second interfaces are not connected, the bridging module being operable to selectively change from the disconnected position to the bridged position, responsive to detection of a triggering event.Type: GrantFiled: December 27, 2006Date of Patent: July 16, 2013Assignee: BCE Inc.Inventors: Frank Siu Hong Chan, David Charles Grainger
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Publication number: 20130163605Abstract: Described are embodiments of methods, apparatuses, and systems for multi-protocol tunneling across a multi-protocol I/O interconnect of computer apparatus. A multi-protocol I/O interconnect may include a switching fabric operatively coupled to a first protocol-specific controller and a second protocol-specific controller, and may be configured to simultaneously route packets of the first protocol to the first protocol-specific controller and packets of the second protocol to the second protocol-specific controller. Other embodiments may be described and claimed.Type: ApplicationFiled: December 27, 2011Publication date: June 27, 2013Inventors: Prashant R. Chandra, Kevin C. Kahn
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Patent number: 8462785Abstract: A mobile Worldwide Interoperability for Microwave Access (WiMax) network system having a private network and a mobile Internet Protocol (IP) terminal processing method thereof are provided. A private access control router performs an initial access procedure for a WiMax terminal requesting initial access. When a mobile IP address is set in the WiMax terminal, a mobile IP registration procedure for the WiMax terminal is performed according to a mobile IP standard. When the WiMax terminal is a local subscriber WiMax terminal, a virtual IP address for accessing the private network mapped to the mobile IP address is registered in an IP mapping table. A single private access control router can process a local intranet service and a public Core Network (CN) service without an additional access control router and a local subscriber WiMax terminal can receive simultaneously the local intranet service and the public CN service without any special operation.Type: GrantFiled: August 12, 2008Date of Patent: June 11, 2013Assignee: Samsung Electronics Co., Ltd.Inventor: Moo-Yeon Woo
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Patent number: 8457139Abstract: Systems, methods, and computer readable media for loose coupling media resource function controllers (MRFCs) and media resource function processors (MRFPs) are disclosed. According to one aspect, the subject matter described herein includes a method for loose coupling MRFCs and MRFPs. The method includes providing one or more MRFPs having media processing resources simultaneously usable by a plurality of MRFCs, and at one of the MRFPs, allowing a plurality of MRFCs to simultaneously use the media processing resources of the MRFP.Type: GrantFiled: April 9, 2010Date of Patent: June 4, 2013Assignee: Genband US LLCInventors: Kodandaraman S. Ayyar, Edward K. Ansong, Ken H. Le, Yong Tai Chen
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Patent number: 8451745Abstract: In one embodiment, a method for automatically probing endpoint in a network for performance and fault management is provided. The method may comprise receiving instructions to auto probe endpoints, the instructions comprising probe characteristics and endpoint indicators. The method may further comprise querying an information base to identify endpoints and to obtain information on the identified endpoints that conform to the endpoint indicators. Based on the instructions and the information obtained for the identified endpoints, one or more probe packets may be generating to be transmitted to the identified endpoints. The generated probe packets may further be scheduled for transmission to the identified endpoints. New endpoints may continue to get discovered based on a notification mechanism which exists. Likewise, endpoints leaving the discovery domain may be identified.Type: GrantFiled: November 19, 2010Date of Patent: May 28, 2013Assignee: Cisco Technology, Inc.Inventors: Wenwei Weng, Minghui Zhu, Vishnu Kant Varma
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Patent number: 8446913Abstract: A Fibre Channel router used to join fabrics. EX_ports are used to connect to the fabrics. The EX_port joins the fabric but the router will not merge into the fabric. Ports in the Fibre Channel router can be in a fabric, but other ports can be connected to other fabrics. Fibre Channel routers can be interconnected using a backbone fabric. Global, interfabric and encapsulation headers are developed to allow routing by conventional Fibre Channel switch devices in the backbone fabric and simplify Fibre Channel router routing. Phantom domains and devices must be developed for each of the fabrics being interconnected. Front phantom domains are present at each port directly connected to a fabric. Each of these is then connected to at least one translate phantom domain. Zoning is accomplished by use of a special LSAN zoning naming convention. This allows each administrator to independently define devices are accessible.Type: GrantFiled: March 10, 2011Date of Patent: May 21, 2013Assignee: Brocade Communications Systems, Inc.Inventors: Daniel Ji Yong Park Chung, Dennis Hideo Makishima
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Publication number: 20130114618Abstract: A system and a method for transmitting serial data, and a recording medium thereof are provided, in which a host is connected to a portable device through network, and the portable device is connected to a serial device. The host includes a host control module, a data convert module, and a first communication module. The host control module generates and receives serial data. The data convert module is connected between the first communication module and the host control module to convert formats of serial data and network packet data. The first communication module performs communication of network packet data between the data convert module and the portable device. The portable device is configured between the host and the serial device, and converts formats of the serial data and the network packet data by using a bridge module, so as to establish connection between the host and the serial device.Type: ApplicationFiled: December 16, 2011Publication date: May 9, 2013Inventors: Chin-Shun HSU, Kaun-Rong Lee, Yu-Sheng Weng
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Patent number: 8437273Abstract: According to one embodiment, allocating demand includes receiving a demand graph that describes demands of a network. One or more weights are calculated for each demand. The demands are allocated according to the weights of the demands to optimize optical line card sharing.Type: GrantFiled: June 22, 2009Date of Patent: May 7, 2013Assignee: Fujitsu LimitedInventors: Xi Wang, Paparao Palacharla, Takao Naito
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Patent number: RE44688Abstract: A mechanism is provided for reordering Reordering bus transactions to increase increases bus utilization in a computer system in which where a split-transaction bus is bridged to a single-envelope bus. In one embodiment, both masters and slaves are ordered, simplifying implementation. In; in another embodiment, the system is more loosely coupled with only masters being are ordered. Greater bus utilization is thereby achieved. To avoid deadlock, transactions begun on the split-transaction bus are monitored. When a combination of transactions would, result in deadlock if a predetermined further transaction were to begin, result in deadlock, this condition is detected. In the more tightly coupled system, the predetermined further transaction, if it is refused if requested, is refused, thereby avoiding deadlock. In the more loosely-coupled system, the flexibility afforded by unordered slaves is taken advantage of to, in the typical case, reorder the transactions and avoid deadlock without killing any transaction.Type: GrantFiled: September 22, 2003Date of Patent: December 31, 2013Assignee: Apple Inc.Inventors: James D. Kelly, Michael L. Regal