Abstract: A system facilitates the configuring of a set of devices. The system stores templates, where each template includes configuration data that applies to one or more of the devices. The system configures the devices based on the configuration data in the templates.

Abstract: Multicast traffic received by a subnet that uses IGMP/PIM snooping may be efficiently processed so that only required multicast router interfaces are used. A router may, for example, receive a source-specific PIM join/prune message indicating that a multicast receiver of the multicast traffic is to join/leave a multicast group to receive/stop traffic from a multicast source; determine whether the router is a first hop router relative to a subnet of the multicast source; and forward, when the router is a first hop router relative to the subnet of the multicast source and is a non-designated router, the source-specific PIM join/prune message towards the subnet.

Abstract: Methods and systems consistent with the present invention provide a programmable table which allows software to define a plurality of branching functions, each of which maps a vector of condition codes to a branch offset. This technique allows for a flexible multi-way branching functionality, using a conditional branch outcome table that can be specified by a programmer. Any instruction can specify the evaluation of arbitrary conditional expressions to compute the values for the condition codes, and can choose a particular branching function. When the processor executes the instruction, the processor's arithmetic/logical functional units evaluate the conditional expressions and then the processor performs the branch operation, according to the specified branching function.

Abstract: A device may generate a refresh signal that identifies a beginning of a refresh interval, determine the availability of banks of a memory device, and send refresh requests to the banks during the refresh interval based on the availability of the banks.

Abstract: A method and apparatus for in-line processing a data packet while routing the packet through a router in a system transmitting data packets between a source and a destination over a network including the router. The method includes receiving the data packet and pre-processing layer header data for the data packet as the data packet is received and prior to transferring any portion of the data packet to packet memory. The data packet is thereafter stored in the packet memory. A routing through the router is determined including a next hop index describing the next connection in the network. The data packet is retrieved from the packet memory and a new layer header for the data packet is constructed from the next hop index while the data packet is being retrieved from memory. The new layer header is coupled to the data packet prior to transfer from the router.

Abstract: Packet processing is provided in a multiple processor system including a first processor to processing a packet and to create a tag associated with the packet. The tag includes information about the processing of the packet. A second processor receives the packet subsequent to the first processor and processes the packet using the tag information.

Abstract: A method may include determining a schedule of flush events for a queue and identifying whether the queue includes information associated with a partial data unit, the partial data unit being a data unit that is less than completely filled with data. The method may include identifying whether the queue should be flushed based on the schedule of flush events, and identifying that the queue includes the information associated with the partial data unit. The method may further include waiting for additional data to add to the queue, in response to identifying that the queue should not be flushed; and sending out the partial data unit, in response to identifying that the queue should be flushed.

Abstract: An MPOA system for establishing communication by using layer 3 protocol on an ATM network, in which data about the layer 3 address of a source of data packets is added to an address resolution request packet which is transmitted in order to establish a shortcut VCC toward a destination of the data packets in each communication node and hence transmitted to the destination, and in the case of accepting the address resolution request packets to be transmitted in order to establish the respective shortcut VCCs toward the destination of the data packets, as for the same communication, from a plurality of the communication nodes, a shortcut VCC is established only between the destination and the communication node remotest from the destination on the network.

Abstract: A method and system merging a file across multiple versions of the file is provided. A file check-in request is identified. A merge candidate associated with the file is automatically identified. A view associated with the identified merge candidate is automatically identified. The file is merged with the merge candidate in the view, resulting in a merge result.

Abstract: In a gateway, a packet received from a first network contains first address data conforming to the first network in the packet header and second address data conforming to a second network in an auxiliary header. The first address data of the packet is then rewritten with the second address data of the packet and transmitted from the gateway to the second network.

Abstract: A system manages a network that includes devices, administrators, and objects. The system forms a hierarchical tree of domains that semantically organize the network, where each of the domains includes logical groupings of the devices, the administrators, or the objects. The system manages the network based on the hierarchical tree of domains.

Abstract: A substitution call control system includes an ATM (Asynchronous Transfer Mode) subscriber network of an ATM communication network. The ATM subscriber network includes a plurality of network terminators respectively connected with a plurality of subscriber terminals, and an ATM subscriber line concentrator, which accommodates VCs (Virtual Connection) to the plurality of network terminators, and is connected with a ATM switching apparatus of the ATM network through a UNI (User-Network Interface). The ATM subscriber line concentrator includes a substitution call control function to substitute for the plurality of network terminators and the subscriber terminals for a call control.

Abstract: Techniques are described for maintaining a forwarding information base (FIB) within a packet-forwarding engine (PFE) of a router, and programming a packet-forwarding integrated circuit (IC) with a hardware version of the FIB. Entries of the hardware version identify primary forwarding next hops and backup forwarding next hops for the LSPs, wherein the packet-forwarding IC includes a control logic module and internal selector block configured to produce a value indicating a state of the first physical link. The selector block outputs one of the primary forwarding next hop and the backup forwarding next hop of the entries for forwarding the MPLS packets based on the value in response to the packet-processing engine addressing one of the entries of the FIB for the LSPs. Packets are forwarded with the PFE to the one of the primary forwarding next hop and the backup forwarding next hop output by the selector block.

Abstract: Techniques are described for automatically setting source address filters within a network device. For example, an apparatus, such as a router, comprises a network interface card to receive routing information from a network device. The routing information specifies at least one unselected network route to a network destination, and includes a tag associated with the unselected route to indicate that the network device does not forward outbound data along the unselected route. The apparatus further comprises a control unit to automatically set a filter to receive inbound data from the network destination specified by the non-selected route. The control unit may automatically set, for example, a source address filter.

Abstract: A system that processes single stream multicast data includes multiple queues, a dequeue engine, and/or a queue control engine. The queues temporarily store data. At least one of the queues stores single stream multicast data. A multicast count is associated with the single stream multicast data and corresponds to a number of destinations to which the single stream multicast data is to be sent. The dequeue engine dequeues data from the queues. If the data corresponds to the single stream multicast data, the dequeue engine examines the multicast count associated with the single stream multicast data and dequeues the single stream multicast data based on the multicast count. The queue control engine examines one of the queues to determine whether to drop data from the queue and marks the data based on a result of the determination.

Abstract: A network acceleration device simultaneously caches and intelligently serves different historical versions of stored network content. For example, the network acceleration device may receive one or more requests for original content; however, subsequent updates to the content may create varying versions of the content, e.g., a pre-update version and one or more post-update versions. Client devices that requested the content prior to the update receive the pre-update version from the network acceleration device. Client devices that requested content after the update receive the post-update version from the network device. Moreover, the network acceleration device facilitates the simultaneous delivery of the pre-update version and the post-update version without waiting for delivery of the pre-update version to be complete. Thus, the network acceleration device may facilitate decreased download times by seamlessly and transparently providing both versions of the content simultaneously.

Abstract: A device may include polling logic configured to store a table of received addresses, sequentially receive sensor data from each address in the table via a serial data bus, store the sensor data in a memory, receive an address from a processor via a high speed data bus, and provide stored sensor data from the memory to the processor via a parallel data bus.

Abstract: A method includes operating in a normal mode to receive and transmit packets, where the network device is one of multiple network devices that operate as a virtual chassis, where the virtual chassis corresponds to a single logical network device, and detecting when the network device crashes. The method further includes initiating a resetting process and operating in a pass through mode, during the resetting process, where the pass through mode permits packets to be received and transmitted to the network devices of the virtual chassis.

Abstract: Techniques are described for establishing network tunnels that allow communication according to one or more routing protocols. The techniques allow for the automated configuration of a selector or other filter associated with the network tunnel. A network device, for example, includes a control unit, and an interface for coupling the network device to a computer network. The control unit receives a communication to establish a network tunnel with a remote network device. The communication includes information that specifies a routing protocol supported by the remote network device. The control unit automatically configures the network tunnel to permit communication through the network tunnel in accordance with the specified routing protocol. The control unit may receive the communication in accordance with a conventional network protocol, such as the Internet Key Exchange protocol. The information may be conveyed using a data field redefined to specify the supported routing protocol.

Abstract: Sending priority of plural stages is statically assigned according to a quality class and an output connection, and the sending priority is dynamically changed according to a state of sending request stacking every sending priority and a state of ATM cell conversion processing of a frame, and ATM cell conversion request means for issuing an ATM cell conversion request is provided every output route, and the cell conversion processing of the frame is selected and performed in the order of higher sending priority every time one cell conversion.