Abstract: A network apparatus includes: a slot table storing a record including an identifier of a time slot which is assigned to packet transmission from a specific transmission source to a specific transmission destination, and identifiers of an input interface and output interface which are used for the packet transmission; and a unit, upon receiving a first control packet which includes an identifier of the specific time slot and represents a start of the specific time slot, to identify the input interface and output interface corresponding to the specific time slot from the slot table, and to send packets from the identified input interface to the identified output interface during a period until receiving a second control packet which includes the identifier of the specific time slot and represents an end of the specific time slot.

Abstract: A system receives a set of datagrams and forms frames based on the datagrams, where at least one of the frames includes data associated with multiple ones of the datagrams. The system writes the frames to memory to form superframes in the memory, where each of the superframes includes multiple ones of frames. The system reads the superframes from the memory, recreates the datagrams based on the superframes, and outputs the datagrams.

Abstract: A peer-to-peer (P2P) network for providing real time media recommendations is provided. The media recommendations may be song recommendations or video recommendations. Each time a media presentation is played by a peer device, the peer device provides a recommendation identifying the media presentation to other peer devices in the P2P network. A peer device having received recommendations from the other peer devices in the P2P network then programmatically, or automatically, selects a next media presentation to play from the media presentations recently played by the other peer devices and one or more locally stored media presentations. If the selected media presentation is not stored locally by the peer device, the peer device may obtain the selected media presentation from a subscription based service enabling streaming or download of the selected media presentation, an e-commerce service enabling purchase and download of the selected media presentation, or another peer device.

Abstract: Certain aspects of the present disclosure relate to a method for allocating a plurality of logical channels within each wideband channel specified by the IEEE 802.15.3c standard. Each logical channel can utilize the same wideband channel, but the logical channel can also utilize a narrowband channel (i.e., a low data rate (LDR) channel) for control and signaling. The logical channel may function as a common mode channel for multi-mode operations. A piconet controller (PNC) within a piconet can utilize the LDR for beaconing, association, and for assigning Channel Time Allocations (CTAs). Inside a CTA period, multiple devices in the piconet can communicate using a single-carrier mode, an OFDM mode, or some other mode.

Abstract: A network system that is part of a main system includes: a first PCI express-network bridge with a first control unit and a first PCI express adapter terminating a first PCI express bus; and a second PCI express-network bridge connected to the first PCI express-network bridge through a network. The second PCI express-network bridge includes a second control unit and a second PCI express adapter terminating a second PCI express bus, wherein the first control unit detects a destination of a packet sent from the first PCI express adapter, searches a physical address of the destination from a packet encapsulating table, and encapsulates the packet in a frame so that the frame includes the physical address, and wherein the second control unit removes the encapsulation tagged to the packet, and transfers the packet to the destination through the second PCI express bus by referring to a PCI express configuration register.

Abstract: The present disclosure generally pertains to systems and methods for communicating data. In one exemplary embodiment, a system has a high-speed channel, such as an optical fiber, between a network facility, such as a central office (CO), and a first intermediate point between the network facility and a plurality of customer premises (CP). Digital communication links, such as DSL links, are used to carry data between the first intermediate point, such as a feeder distribution interface (FDI), and a second intermediate point, such as the Distribution Point (DP). Non-shared links may then carry the data from the second intermediate point to the CPs. The links between the two intermediate points are bonded to create a high-speed, shared data channel that permits peak data rates much greater than what would be achievable without bonding. In some embodiments, multicast data flows may be prioritized and transmitted across a set of connections to each of the intermediate points.

Abstract: 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.

Abstract: A system may install a trunk between a first switch and an end office, where the trunk is a trunk home for the end office. The system may further identify Numeric Numbering exchanges (NXXs) that home to the end office. Traffic for at least one of the identified NXXs is routed to the end office through a second switch that is different than the first switch. The system also causes traffic for the identified NXXs to be routed to the first switch.

Abstract: In one embodiment, an apparatus obtains a switch port identifier mapping for each of the plurality of ports of a network device, wherein the switch port identifier mapping indicates a port identifier of one of the plurality of ports of the network device and a switch port identifier of a switch port to which the one of the plurality of ports is connected. The apparatus obtains a set of switch information for each of a plurality of switches, the set of switch information including a set of switch port identifiers associated with the corresponding one of the plurality of switches. The apparatus ascertains for each one of the plurality of ports, a corresponding one of the plurality of switches and a port of the one of the plurality of switches to which the one of the plurality of ports is connected.

Abstract: A communication apparatus configured to transmit data by configuring a plurality of virtual communication pathways in a physical communication pathway established with another communication apparatus, the communication apparatus includes a configuration unit that configures information related to an order of priority of the virtual communication pathways, a first storage unit that stores the configured information, a second storage unit that stores data, which includes signals, based on the configured information, and a transmission processing unit that carries out transmission processing on the stored data based on the configured information.

Abstract: An overlaid switching network is derived by overlaying perpendicularly one multistage interconnection network with a second multistage interconnection network. The new network is formed by placing a switching element corresponding to the position of switching elements in either multistage interconnection network. Each switching element in the overlaid network has the ports defined by the two multistage interconnection networks as does its interconnection networks. A special case occurs when the number of rows and columns of the first multistage interconnection network is the number of columns and rows of the second multistage interconnection network, respectively. The overlaid switching networks also inherit their upgradeability from the multistage interconnection networks from which they are derived, such as in the case of a redundant blocking compensated cyclic group multistage network.

Abstract: An E-Tree is disclosed which includes a root node associated with a Metro Ethernet network. The E-Tree includes a first Virtual Bridge (VB), associated with the root node, which is configured to process Ethernet traffic, and a second node associated with the Metro Ethernet network. The E-Tree includes a second VB, associated with the second node, configured to process Ethernet traffic and having a first connection between the first VB and the second VB. The second VB is configured to be able to send Ethernet traffic to the first VB via the first connection, if appropriate. In the event there is a second connection between the second VB and a third VB and the second connection has been assigned a down direction from the point of view of the second VB, the second VB is not permitted to send traffic received from the second connection to another connection which from the point of view of the second VB has been assigned a down direction.

Abstract: A web call server provides call processing for web calls. The call processing for web calls comprises routing, queuing, and/or provision of web service applications. For routing, the web call server receives a call request message. In response to receiving the call request message, the web call server identifies a web call center resource. The web call server then generates and transmits a routing instruction to route the web call to the web call center resource. For queuing, the web call server receives a call request message for a web call. The web call server then determines whether any web call center resource is available to handle the web call in response to receiving the call request message. The web call server then transfers a web call indicator to a web call queue in response to the determination that all web call center resources are unavailable. For web service applications, the web call server receives a call request message for the web call.

Abstract: The present application generally relates to a public address system, and more particularly, to a paging relay controller within the public address system and methods thereof. In an illustrative embodiment, the paging relay is configured through a dynamic host configuration protocol server. After configuration, the paging relay can process incoming network streams. The paging relay can receive an incoming network stream from a source typically in the form of a unicast stream. The stream can be transported over a wide area network that commonly does not support multicast transmissions. After receiving the unicast stream, the paging relay converts the unicast stream into a multicast stream. The paging relay then rebroadcasts the multicast stream over a local area network to local subscribing devices. In one embodiment, the paging relay can also convert the unicast stream to line level audio for transmission to an analog system via the RCA phono port.

Abstract: A system and method for remote direct memory access over a network switch fabric. Some illustrative embodiments may include a system comprising a first system node, a direct memory access (DMA) controller, a second system node, and a network switch fabric coupling together the first and second system nodes (the network switch fabric comprises a rooted hierarchical bus). The DMA controller is configured to perform a DMA transfer of data between the first and second system nodes across the network switch fabric. The data is formatted as one or more remote DMA (RDMA) protocol messages that are routed across the network switch fabric based on a bus end-device identifier corresponding to the second system node.

Abstract: A method for transferring time-synchronous data, particularly voice and video data, over a network, particularly the Internet, between at least two terminals, where between the terminals a connection is established using a SIP server and where the SIP protocol is used for establishing the connection, is—with respect to high Quality of Service for transferring time-synchronous data and with a technically simple and cost effective design—developed in a way that the SIP server analyzes the connection and/or the terminals or the like and that based on the analysis it determines an ideal bandwidth for optimizing the transfer of time-synchronous data.

Abstract: Apparatus and methods are provided for measuring perceptual quality of a signal transmitted over a communication network, such as a circuit-switching network, packet-switching network, or a combination thereof. In accordance with one embodiment, a distributed apparatus is provided for measuring perceptual quality of a signal transmitted over a communication network. The distributed apparatus includes communication ports located at various locations in the network. The distributed apparatus may also include a signal processor including a processor for providing non-intrusive measurement of the perceptual quality of the signal. The distributed apparatus may further include recorders operatively connected to the communication ports and to the signal processor, wherein at least one of the recorders processes the signal at one of the communication ports and the recorder sends the signal to the signal processor to measure the perceptual quality of the signal.

Abstract: A method and apparatus for device discovery and channel selection in a wireless networking environment are described. As part of an automatic network configuration process, a super node sequentially traverses the available channels, broadcasting discovery messages including the channel switching schedule. Wireless nodes that receive those broadcast messages switch channels in lock step with the super node, sending discovery replies on those channels over which the broadcast discovery messages are successfully received. An association is generated identifying accessible nodes and the channels through which those nodes may be accessed. An optimum channel may then be selected based on this association information. Sub-nodes may repeat the broadcast discovery messages, and relay any discovery replies to the super node. The super node may then identify sub-nodes that may be used as proxies to access nodes that would otherwise be inaccessible.

Abstract: 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.

Abstract: An audio network system that performs transport of audio signals between nodes by cascading a plurality of nodes each including two sets of transmission I/Fs and reception I/Fs, and circulating among the nodes in each fixed period an audio transport frame generated by a master node, the audio transport frame including a plurality of storage regions for audio signals, is configured such that when the configuration of the system is changed, loopback of the audio transport frame in each node and release thereof are automatically controlled to automatically loop back the transport of the audio transport frame at nodes at both ends and not loop back it at the other nodes to thereby form a loop transmission route among the nodes.

Abstract: The invention relates to a method and system for providing mobile based services for hotel PBX having an external number assigned which includes the steps of providing each hotel room which provides the mobile based service with at least one mobile station comprising a SIM, each SIM storing a different IMSI number; assigning a VPN to the hotel; assigning each IMSI number of each mobile station to a different MSISDN that can only be used internally in the MNO network and that cannot be dialed from other telephones; and assigning each MSISDN to a different extension number that can be used as a room extension number and that corresponds to the VPN number of the VPN of the hotel. The invention is advantageous in that it solves problems of prior art systems by making use of a mobile PBX, so that every hotel will have its own VPN numbers that can be used as room extensions.

Abstract: An approach is provided for announcing aggregate characteristics of a composite transport group (CTG) for traffic engineering. Information specifying characteristics of a plurality of component links of the CTG is received. An aggregate characteristic of the CTG is determined based the information. The aggregate characteristic is announced to a label switched network for provisioning label switched paths on the CTG.

Abstract: In one embodiment a method is provided for requesting and receiving network statistics in-band of a data replication exchange. The method includes receiving, at a switch, a request packet, initiated from a data replication system, for in-band delivery of network statistics, modifying the request packet to include a command that can be processed by a data storage device that is periodically accessed in connection with the data replication system, sending the request packet including the command to the data storage device, receiving from the peripheral device, in response to the request packet including the command, a response packet that includes data responsive to the command, deleting from a data field of the response packet the data responsive to the command and adding to the data field network statistics data available to the switch, and sending the response packet including the network statistics data to one of another switch or a host device from which the request packet was sent.

Abstract: 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.

Abstract: A system and method for upstream transmission and the media access control of upstream transmission of groups of fixed sized cells, such as ATM cells in a point to multipoint optical network, such as a passive optical network. The upstream media access control scheme is responsive to grouping information reflecting a parameter of a group of fixed sized cells. The parameter may reflect the length of the relevant payload of the group the fixed sized cells.

Abstract: 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.

Abstract: Methods, systems, and circuits for forming and operating a crossbar structure in an asynchronous system are described. One or more input ports of a programmable crossbar structure may be connected to send data to one or more output ports. A group of output ports each receiving data from an input port may be connected to send, in response, control signals via a programmable element to the input port. The number of programmable elements used may be determined by the number of input ports being copied to more than one output port. Additional methods, systems, and circuits are disclosed.

Abstract: A network of global coverage, scalable to hundreds of petabits per second, comprises bufferless switch units each of dimension n×n, n>1, arranged in a matrix of ? columns and ? rows, ?>1, interconnecting a maximum of ?×n edge nodes. Each edge node has ? upstream channels to ? switch units in ? different columns and ? downstream channels from ? switch units in ? different rows. All upstream channels to a switch unit are time-locked to the switch unit, thus enabling coherent switching at the switch unit. The switch units are preferably fast-switching optical nodes. Alternatively, the switch units may comprise fast-switching optical nodes each of dimension m×m, arranged in a first ?×? matrix, and latent space switches each of dimension n×n, n>1, arranged in a second ?×? matrix, ?>1, where ?×m=?×n. An edge node time locks to each optical node and each latent space switch to which it connects.

Abstract: A system and method for expanding a chassis network using soft interconnects, including a hybrid chassis comprising a first fabric card comprising a first switching fabric, a second fabric card comprising a second switching fabric, a first set of line cards coupled to the first switching fabric via a first set of hard connections, and coupled to an interface associated with the second switching fabric via a soft connection, and a second set of line cards coupled to the second fabric card.

Abstract: A hybrid switch module configured on a common support structure providing networks the ability to automatically reconfigure point-to-point links, per software controls, to optimize network topology by combining a network switching device with a physical layer switch using switching logic. The hybrid switch module is an integrated unit that can operate at a physical layer, routing signals between dedicated ports, and operate as a packet switch for non-dedicated ports.

Abstract: Systems and methods according to these exemplary embodiments provide for dynamically scalable switching fabrics. A dynamically scalable switching fabric can include a first set of fabric element (FE) interfaces and a second set of FE interfaces, interconnectable by a reconfigurable crossbar. By selectively populating the FE interfaces, different switching capabilities, e.g., bandwidth per processor blade and/or number of processor blades supported, can be achieved. When the population of the FE interfaces is modified, the reconfigurable crossbar can reconfigure the links between FEs. According to one embodiment, a three-stage CLOS architecture can be implemented. According to another embodiment, a multi-plane architecture can be implemented.

Abstract: In one embodiment, layer-2 (L2) ports of a network device may each be assigned to a particular virtual service domain (VSD). One or more virtual service engines (VSEs) may also be assigned in a particular order to each VSD, where each VSE is configured to apply a particular service to traffic traversing the VSE between ingress and egress service ports. Interconnecting the L2 ports and the ingress and egress service ports is an illustrative virtual Ethernet module (VEM), which directs traffic it receives according to rules as follows: a) into a destination VSD via the one or more correspondingly assigned VSEs in the particular order; b) out of a current VSD via the one or more correspondingly assigned VSEs in a reverse order from the particular order; or c) within a current VSD without redirection through a VSE.

Abstract: In an interconnection network, multiple nodes are connected to one of a first layer of switches. The first layer of switches is connected to one another through a second layer of switches. Each of the nodes is connected through one of multiple shared links connecting the first layer switches and the second layer of switches. A pipelined broadcast manager schedules a hierarchical pipelined broadcast through at least one switch of the first layer switches comprising non-root nodes by selecting two nodes among the non-root nodes connected to the at least one switch and scheduling each of multiple broadcast steps for the pipelined broadcast with at least one of an inter-switch broadcast phase and an intra-switch broadcast phase using the selected two nodes.

Abstract: 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.

Abstract: A router including a lookup execution unit including a plurality of stages, a forwarding table memory arranged in hierarchy including addressable sectors, blocks, and entries, and a crossbar having an address crossbar for selectively coupling one of the plurality of stages to a sector of the memory so that data from the sector can be read. In one example, any one of the stages of the plurality of stages may be selectively and dynamically coupled with any one of the sectors of the forwarding table memory for providing an address to a particular sector of the memory to read data therefrom.

Abstract: An apparatus and method bridges frames between entities running on the same server. The server has a physical network interface that supports I/O virtualization. The physical network interface has an IOV device with a bridging function capable of bridging frames between entities running on the server. A network switch has a physical port coupled to the server by a physical link and a switching fabric in communication with the physical port for transmitting and receiving Ethernet data frames to and from the IOV device. A control processor, in communication with the IOV device, configures the bridging function of the IOV device to bridge some frames locally within the server between the entities running on the server and to pass other frames through the IOV device over the physical link to the physical port and the switching fabric, so that the switching fabric bridges these other frames between the entities.

Abstract: A signal converting system has a multi-segment digital to analog converter coupled to an error shaping loop. A control value is received at a vector processor that indicates a number N of elements that are to be selected from a vector having M elements. The elements of the vector are sorted into a bitonic sequence and separated into a larger value group and a smaller value group using a bitonic split. Only the larger value group is sorted into an ordered sequence with repeated bitonic splits when the control value is less than M/2, and N largest elements are selected from the ordered sequence. Only the smaller value group is sorted into an ordered sequence with repeated bitonic splits when the control value is greater than M/2, and N?M/2 largest elements are selected from the ordered sequence.

Abstract: Certain embodiments of a method and system for handling connection setup in a network may comprise a network interface hardware device (NIHW) that may be operable to receive a services list and/or connection acceptance criteria from a first guest operating system running on a host system, receive a connection request from a second guest operating system running on the host system, and determine whether to allow establishment of the requested connection based on one or both of the services list and the connection acceptance criteria. The determination may be made prior to or during connection set up. The NIHW may maintain a connection state comprising information regarding set up of the requested connection. The services list may comprise one or more of a local network address, a local transport address, a network protocol, and a transport protocol. The communicated acceptance criteria may comprise packet filtering operations and/or security operations.

Abstract: An apparatus that includes W interfaces to a circuit-switched network, where W is an integer number that equals the product of smaller integer numbers X and N. The apparatus also includes X discrete switching apparatus each having N ones of the W network interfaces, as well as a plurality of switching-expansion interconnects each interconnecting ones of the X switching apparatus, such that the W network interfaces are collectively interconnected in a non-blocking manner.

Abstract: A network device includes a storage unit configured to store an IP address assigned to the network device as an address to be sent to a plurality of domain name servers in which an address-domain mapping relationship between the IP address and a domain name of the network device is to be registered, a server searching unit configured to search for an in-operation domain name server among the plurality of domain name servers, the in-operation domain name server being a domain name server that is currently operating, a software holding unit configured to hold a plurality of unique communication program modules, each corresponding to one of the plurality of domain name servers, and an address notifying unit configured to notify the in-operation domain name server of the IP address through a corresponding one of the communication program modules to register the address-domain mapping relationship in the in-operation domain name server.

Abstract: A programmable network component for use in a plurality of network devices with a shared architecture, where the programmable network component includes an interface with an external processing unit to provide management interface control between the external processing unit and a network device. The programmable network component also includes a plurality of internal busses each of which is coupled to the programmable network component and to at least one network component. The programmable network component further includes a plurality of external buses each of which is coupled to the programmable network component and to at least one physical interface. The programmable network component is configured to support a plurality of protocols for communication with a plurality of physical interface components and comprises a plurality of programmable registers for determining the status of the plurality of physical interfaces.

Abstract: An apparatus and method for verifying route and bandwidth settings of multiple services provided over networks. The apparatus has an extractor and a verifier. Based on input data describing services each having primary and secondary routes between specific locations, an available bandwidth of each network, and a guaranteed bandwidth of each service, the extractor selects a first network to be verified and extracts first services that use the first network as their respective primary routes. The extractor then selects at least one second network from among the networks that the first services specify as their respective secondary routes. The extractor extracts second services that use the second network as their primary routes and specify the first network as their secondary routes. The verifier sums up guaranteed bandwidths that the first and second services should provide, and determines whether the sum is smaller than an available bandwidth of the first network.

Abstract: A method for transmitting data, the method includes scanning at least a first memory unit to retrieve data segments associated with multiple TDM channels, in response to a definition of multiple TDM time frames, each TDM time frame includes multiple time slots; sending the retrieved data segments to an array of line shifters; multiplexing data segments provided from the array of line shifters, in response to the definition, such as to provide in a parallel manner multiple data segments to multiple TDM lines; and transmitting a group of time division multiples data frames over a group of TDM lines.

Abstract: A system for delivering digital content to user devices. The system includes a content delivery server for establishing respective sessions with the user devices and for delivering streams of content to the user devices during the sessions according to a streaming protocol. An asset server is communicatively coupled to the content delivery server through an asset protocol for maintaining an asset scheduling table including asset entries, each asset entry including an asset identifier identifying a given asset in association with a starting time parameter, user identifiers identifying at least one target user device, and a set of session identifiers each identifying a session established with a target user device identified by the user identifiers.

Abstract: Methods of operating a packet network device having multiple serial channels crossing a backplane are disclosed. In at least one embodiment, a management function performs dynamic modifications to the packet network device configuration in response to detected backplane errors. These modifications can directly alter a characteristic of a channel that is generating errors, or can indirectly affect such a channel by directly altering a characteristic of an “aggressor” channel that is indicated as producing crosstalk on that channel. Other embodiments are also described and claimed.

Abstract: A device, system and method for performing zone switch based handover in a legacy serving base station by an advanced mobile station (AMS), the method including receiving a ranging response (RNG-RSP) message including a zone switching TLV parameter necessary to perform zone switching to an advanced mobile station support zone (MZone) from a legacy zone (LZone) of a target advanced base station (ABS), and requesting a bandwidth for transmitting an advanced air interface ranging request (AAI_RNG-REQ) message to the MZone using the zone switching TLV parameter.

Abstract: A scalable router-switch that grows from a capacity of a few gigabits per second to hundreds of terabits per second is disclosed. In one embodiment, the router-switch comprises a plurality of switch units arranged in a plurality of combinations. Within each combination, each switch unit cyclically connects to each other switch unit to form a contention-free temporal mesh. Each switch unit belongs to a number of combinations and any two combinations have at most one switch unit in common. The router-switch further includes a distributed-control system which comprises an outer controller associated with each of the switch units and an inner controller associated with each combination. The structural simplicity significantly simplifies the operation and control of the router-switch.

Abstract: An automated-protection-switching (APS) software suite for distribution over multiple processors of a distributed processor router has an APS server module running on a first one of the multiple processors for managing communication and distributing configuration and state information and APS client modules running on second ones of the multiple processors, the APS client modules for monitoring interface state information, reporting to the APS server application, and for negotiating with other APS client modules. The software is characterized in that APS interface relocation from a primary interface to a backup interface is performed through direct communication between the APS client modules running on the processors supporting the involved interfaces.

Abstract: A serial channel switch circuit and modular packet switch using the serial channel switch circuits are disclosed. The serial channel switch circuit has a reconfigurable table for internal logical-to-physical channel switch translation. Depending on the slot in which a card containing such a serial channel switch circuit is inserted in the modular packet switch, its serial channel switch circuit may receive a different set of reconfigurable table values that are specific to that location. A global set of logical channel values can be applied to each card, which performs logical-to-physical channel mapping according to its location in the modular packet switch. Other embodiments are also described and claimed.

Abstract: In one aspect, initial storage system control information is received, and in response a configuration of a storage interface is determined in accordance with the initial storage system control information. Then final storage system control information is accessed via the storage interface and the storage interface is reconfigured in accordance with the final storage system control information. In another aspect, one of a plurality of physical partitions of a physically partitionable symmetric multiprocessor executes a storage control process to control storage traffic, and another one of the physical partitions executes a program to process the storage traffic. The physical partitions are enabled to communicate the storage traffic at least in part via respective input/output controllers coupled to a switch fabric.