Abstract: A system for optimizing response time to events or representations thereof waiting in a queue has a first server having access to the queue; a software application running on the first server; and a second server accessible from the first server, the second server containing rules governing the optimization. In a preferred embodiment, the software application at least periodically accesses the queue and parses certain ones of events or tokens in the queue and compares the parsed results against rules accessed from the second server in order to determine a measure of disposal time for each parsed event wherein if the determined measure is sufficiently low for one or more of the parsed events, those one or more events are modified to a reflect a higher priority state than originally assigned enabling faster treatment of those events resulting in relief from those events to the queue system load.

Abstract: Stacked (i.e., hierarchically arranged) rate wheels schedule traffic flows in a network. A first rate wheel operates to efficiently schedule traffic flows in which traffic shaping parameters may be applied to individual traffic flows. A second rate wheel schedules group of the traffic flows in which traffic shaping parameters may be applied at the group level. In the context of an ATM network, the first rate wheel may operate at the virtual circuit level and the second rate wheel may operate at the virtual path level.

Abstract: A system and method is provided for controlling multimedia data transmission to a communication device via a network. The system comprises a de-muxer configured to obtain a first multimedia data for transmission and a flow controller configured to evaluate an estimated buffer time associated with the communication device. If the estimated buffer time satisfies a first threshold condition, the flow controller updates a current transmitting state to be a pacing state. And if the estimated buffer time satisfies a second threshold condition, the flow controller updates the current transmitting state to be a bursting state. The system also comprises a muxer configured to transmit the first multimedia data at a transmitting rate corresponding to the bursting state or the pacing state.

Abstract: A communication apparatus is provided with: a transmission planned data storage unit in which a plurality of application data, each associated with transmission order information indicating a transmission order and with destination information indicating a destination terminal as a transmission destination are stored; a data aggregation unit that extracts a plurality of application data from the plurality of application data that are associated with mutually identical destination information, that extracts, on the basis of a maximum transmission size indicating an upper-limit value of data size and the transmission order information, a plurality of application data for aggregation from the plurality of extracted application data, and that, generates aggregated data to which the identical destination information is allocated, on the basis of the plurality of application data for aggregation; and a data transmission unit that transmits the aggregated data to the destination terminal indicated by the allocated d

Abstract: A notification from a source host is received at a network interface device that indicates that a data packet is ready for transmission to a destination host. The data packet may be transmitted to the destination host via the network interface device, and a first completion queue event is generated. The first completion queue event may be used as a trigger to re-transmit the data packet to a port mirroring destination via the network interface device. In another example, a network interface device receives a data packet transmitted from a source host to a destination host. A first completion queue event is generated based on the receipt of the packet, and is used as a trigger to re-transmit the data packet to a port mirroring destination via the network interface device.

Abstract: There is provided a relay device including: a buffer configured to store a received frame; a discarding unit configured to discard the received frame, when a utilization amount of the buffer exceeds a first value set corresponding to a communication type of the received frame; a first calculating unit configured to calculate the utilization amount of the buffer for each communication type at least two points in time, and calculate an amount of change in the utilization amount of the buffer for each communication type; and a setting unit configured to calculate the first value for each communication type, based on the amount of change in the utilization amount, and set the first value in the discarding unit.

Abstract: Wireless personal area network (Zigbee, Bluetooth, UWB) and wireless identification technologies (Near Field Communication (NFC), Radio Frequency Identification (RFID)) are implemented in particular client server functions and communications. Connected with an Authentication Server, a wireless HUB authenticates user identification and provides the user with access to secure data communication with a wireless terminal such as a cellular phone or a PDA. A Location Server provides user locations via methods such as RSSI, TDOA, and GPS and sends location information to a Center Control Server and the Authentication Server. With location information, the Center Control Server initiates and optimizes secure information processes and coordinates the functions of servers and user terminals.

Abstract: A communication system detects particular application protocols in response to their message traffic patterns, which might be responsive to packet size, average packet rate, burstiness of packet transmissions, or other message pattern features. Selected message pattern features include average packet rate, maximum packet burst, maximum future accumulation, minimum packet size, and maximum packet size. The system maintains a counter of packet tokens, each arriving at a constant rate, and maintains a queue of real packets. Each real packet is released from the queue when there is a corresponding packet token also available for release. Packet tokens overfilling the counter, and real packets overfilling the queue, are discarded. Users might add or alter application protocol descriptions to account for profiles thereof.

Abstract: Systems and methods can operate to transmit embedded control data (ECD) information within the payload of packet data. Payload packet data can contain a plurality of data elements of equal value. A transmitter can replace the repeating data elements with ECD information. A receiver can extract the ECD information and replace with the repeating data value to reconstruct the original. ECD information can be communicated between communication systems and between interfaces within a communication system.

Abstract: In one embodiment, a method is provided. The method of this embodiment provides storing a packet header at a set of at least one page of memory allocated to storing packet headers, and storing the packet header and a packet payload at a location not in the set of at least one page of memory allocated to storing packet headers.

Abstract: Provided is an electronic device capable of performing stable communications between a plurality of electronic devices connected in series. A communication device (121) is inserted and connected to a serial communication channel between a host controller (101) and a communication device (141) at a subsequent stage, and includes a buffer (124) for temporarily accumulating a first data received from the communication device (141) at the subsequent stage. The communication device (121) monitors a communication situation with respect to the host controller (101) and the communication device (141), accumulates the first data in the buffer (124) when a second data to be transmitted from the communication device (121) to the host controller (101) is being transmitted to the host controller (101), and transmits the first data accumulated in the buffer (124) to the host controller (101) in response to the finish of transmission of the second data.

Abstract: A system and method for improved upstream data transmission. In an embodiment, a cable modem includes a transceiver configured for transmitting data upstream once permission is granted. In between times when permission to transmit is granted, however, the cable modem is configured to prepare as much data as possible for immediate upstream transmission once that very permission is granted. Thus, prior to permission being granted, the cable modem assembles (pre-processes) the data into transmit frames such that the data frames may be stored in a local memory coupled to the transceiver in a “ready-to-go” format. In this manner, the entire amount of time/bandwidth allocated to the cable modem in response to its request for upstream data transmission may be dedicated to actually transmitting data upstream as opposed to consuming time and bandwidth processing the data into data frames after upstream data transmission has been granted.

Abstract: A communication device transmits a first packet to a first device via a network device, and receives a second packet from the first device. A transmission time between the communication device and the first device is calculated using time indicated by the communication device when the communication device transmitted the first packet, time indicated by the first device when the first device received the first packet, time indicated by the first device when the first device transmitted the second packet, time indicated by the communication device when the communication device received the second packet. A size of the first packet is set so that wait time of the first packet at the network device is within predetermined period. The wait time is calculated by assuming that a third packet transmitted from a second device is inputted to the network device before the first packet is inputted to the network device.

Abstract: A data collection system for, and methods of, providing reliable store-and-forward data handling by encoded information reading terminals can utilize ad-hoc peer-to-peer (i.e., terminal-to-terminal) connections in order to store data that is normally stored on a single terminal only, in a redundant manner on two or more terminals. Each portable encoded information reading terminal can be configured so that when it captures data, a software application causes the terminal to search out nearby peer terminals that can store and/or forward the data to other peer terminals or to a data collection server, resulting in the data having been stored by one or more peer terminals that are immediately or not immediately accessible by the data-originating terminal.

Abstract: An apparatus for policing traffic in a communication network is provided. The apparatus includes a packet distributor, a plurality of policing units, and a token management unit. The packet distributor evenly distributes packets that have arrived at the apparatus. Each policing unit determines whether a packet distributed from the packet distributor is permitted to be passed or discarded in accordance with an amount of tokens remaining in a first token bucket provided for the each policing unit, and issues a token request for requesting supply of tokens when an amount of tokens remaining in the first token bucket falls below a first threshold value. The token management unit supplies tokens in units of a predetermined amount to the first token bucket for which the token request has been issued, in accordance with an amount of tokens remaining in a second bucket provided for the token management unit.

Abstract: A network element includes an ingress interface, a VSP queue, and a switch fabric (SWF). The ingress interface includes a first virtual subport (VSP) and a second VSP. The first VSP is configured to receive data traffic. The VSP queue is coupled to the second VSP such that data traffic transmitted to the VSP queue is transmitted from the network element via the second VSP. The SWF is configured to receive data traffic from the first VSP, determine whether an intended recipient of the data traffic is associated with the second VSP, and hairpin the data traffic to the VSP queue when the SWF determines that the intended recipient is associated with the second VSP.

Abstract: A method, performed by a user equipment (UE), for transmitting Buffer Status Reporting (BSR) information from the UE to a base station (BS) in a wireless telecommunication network, includes storing data to be transmitted, via a logical channel, in a transmission buffer, the logical channel being provided with a priority level and a specific Prioritized Bit Rate (PBR) parameter indicating a resource level to allocate to the UE for transmitting the stored data, wherein the BSR information represents an amount of data present in the transmission buffer of the UE, receiving new uplink data belonging to a logical channel for which no data already existed in the UE transmission buffer, and transmitting Buffer Status Reporting information upon receipt of the new uplink data.

Abstract: Packets having at least one cell are switched using input queues, output queues, a switch fabric, and a controller. Each input queue stores cells to be switched, and each output queue stores switched cells. The switch fabric couples the input queues to the output queues and has memory. The switch fabric stores cells moved from the input queues to the switch fabric and stores cells based on the output queues. The controller couples to the input queues and the switch fabric and determines input priorities for cells moving from the input queues to the switch fabric and output priorities for cells moving from the switch fabric to the output queues.

Abstract: A set of techniques is described for performing input/output (I/O) between a guest domain and a host domain in a virtualized environment. A pool of memory buffers is reserved for performing virtualized I/O operations. The reserved pool of memory buffers has static mappings that grant access to both the guest domain and the host domain. When a request to perform an I/O operation is received, the system can determine whether the memory buffers allocated to the I/O operation belong to the reserved pool. If the buffers are in the reserved pool, the host domain executes the I/O operation using the buffers without the need to map/unmap the buffers and perform TLB flushes. If the buffers are not in the reserved pool, the system can either copy the data into the reserved pool or perform the mapping and unmapping of the memory buffers to the address space of the host domain.

Abstract: A packet buffering device includes: a queue for temporarily holding an arriving packet; a residence time predicting unit which predicts a length of time during which the arriving packet will reside in the queue; and a packet discarding unit which discards the arriving packet when the length of time predicted by the residence time predicting unit exceeds a first reference value.

Abstract: Some embodiments provide a method for a managed forwarding element that operates on a host machine to process packets for at least one logical network. The method receives a packet that includes a particular piece of data to maintain with the packet. The particular piece of data is not stored in a payload of the packet and is not protocol-specific data. The method stores the particular piece of data in a register while processing the packet. The method identifies a next destination of the packet that operates on the host machine. The method generates an object to represent the packet for the identified destination. The particular piece of data is stored in a field of the generated object.

Abstract: A network switch includes a first network port, a second network port, and a port virtualization module associated with the first network port. The port virtualization module determines that a device coupled to the first network port includes a first virtual network interface and provides a second virtual network interface on the first network port. The second virtual network interface is associated with the first virtual network interface. The network switch provides an aggregation zone including the second network port, the first virtual network interface, and the second virtual network interface.

Abstract: A network switch including a port receiving a first frame. A memory includes first buffers available to store frames and second buffers reserved for the port. A pointer module stores first pointers for the first buffers. A reserve module includes a counter, requests from the pointer module some of the first pointers, and increments the counter to count a number of pointers reserved for the first port. The pointers received from the pointer module are deemed reserved and as a result the first buffers, pointed to by the pointers received from the pointer module, are included in the second buffers. An ingress module stores the first frame in some of the second buffers and determines a destination channel for the first frame. The counter is incremented for each of the second buffers used to store the first frame. An egress module transmits the frame on the destination channel.

Abstract: Disclosed are various embodiments that provide an architecture of memory buffers for a network component configured to process packets. A network component may receive a packet, the packet being associated with a control structure and packet data, an input port set and an output port set. The network component determines one of a plurality of control structure memory partitions for writing the control structure, the one of the plurality of control structure memory partitions being determined based at least upon the input port set and the output port set; and determines one of a plurality of packet data memory partitions for writing the packet data, the one of the plurality of packet data memory partitions being determined independently of the input port set.

Abstract: Embodiments of the invention include an apparatus, method, and computer program for collecting and analyzing network traffic flow records. The method includes, in one example, receiving a plurality of flow records which include data about traffic in a network. The method may further include caching the plurality of flow records in temporary storage, analyzing the plurality of flow records to determine a number of bytes of traffic that each of the plurality of flow records represents, and selecting a subset of the plurality of flow records to forward to permanent storage based on the determined number of bytes of each of the flow records.

Abstract: A network round trip time measurement apparatus and method employ an allocated storage in the form of a double ended queue, to store data received while awaiting a corresponding receipt of data to allow the network round trip time to be determined. When the allocated size of the storage is exceeded, storage stops until such time as data is received to allow network round trip time to be determined on at least some of the already stored data, whereupon storage can resume. This allows use in high and low volume traffic situations to automatically scale back the amount of data processed, so as to not overtax available resources.

Abstract: Techniques for using target issue intervals are provided. Request messages may identify the size of a data packet. A target issue interval may be determined based on the request messages. The target issue interval may be used to insert a delay between sending subsequent request messages.

Abstract: A telecommunication and multimedia management apparatus and method that supports voice and other media communications and that enables users to: (i) participate in multiple conversation modes, including live phone calls, conference calls, instant voice messaging or tactical communications; (ii) review the messages of conversations in either a live mode or a time-shifted mode and to seamlessly transition back and forth between the two modes; (iii) participate in multiple conversations either concurrently or simultaneously; (iv) archive the messages of conversations for later review or processing; and (v) persistently store media either created or received on the communication devices of users. The latter feature enables users to generate or review media when either disconnected from the network or network conditions are poor and to optimize the delivery of media over the network based on network conditions and the intention of the users participating in conversations.

Abstract: A method includes receiving a first packet at an input of a switching device and determining whether to insert first data associated with the first packet into a normal buffer of the input. The determination of whether to insert first data associated with the first packet into the normal buffer includes determining whether the first output identifier matches a second output identifier corresponding to second data in the normal buffer that is associated with a second packet. The first data is inserted into the normal buffer when the first output identifier matches the second output identifier.

Abstract: Methods, devices, and/or systems related to viral quality of service upgrade are disclosed. Viral quality of service upgrade allows upgrade of communications that are responsive to a priority communication, using an architecture in which the priority communication “infects” devices forwarding the priority communication, so that the forwarding devices may subsequently upgrade priority levels of communications responsive to the priority communication.

Abstract: In a media access control (MAC) processor, a programmable controller is configured to execute machine readable instructions for implementing MAC functions corresponding to data received by a communication device. A tightly coupled memory is associated with the programmable controller. A system memory is coupled to the programmable controller via a system bus, and a hardware processor is coupled to the system bus and the tightly coupled memory. The hardware processor is configured to implement MAC functions on data received in a communication frame, store, in the tightly coupled memory, processed data corresponding to data in the communication frame that indicates a structure of downlink data in the communication frame, and store, in the system memory, processed data corresponding to other data in the communication frame.

Abstract: Embodiments of the invention include a method for avoiding memory bandwidth utilization during packet processing. The packet processing core receives a plurality of packets. The packet processing core identifies the packet's quality of service (QoS) descriptor. The packet processing core determines that at least one packet should be moved to an off-chip packet stored prior to the packet being transmitted to the egress port. The packet processing core bases that determination, at least in part, on the packet's QoS descriptor. The packet processing core moves the determined packets to the off-chip packet store. The packet processing core determines that at least one packet should not be moved to the off-chip packet store prior to the packet being transmitted to the egress port. This determination is also made, at least in part, based on the packet's QoS descriptor.

Abstract: A user, identified by a network access identifier (NAI) or other user identifier, uses a communication device, identified by a hostname or other device identifier. An Internet Protocol (IP) address is obtained for the communication device, e.g., when the user logs in for access to a packet-switched network. An association between the IP address and the hostname is registered in a domain name server. An association between the user identifier and the hostname is registered in an RWHOIS server. An application may query the RWHOIS server to determine the hostname of the communication device being used by the user and then query the domain name server to determine the IP address of the communication device.

Abstract: A method for transmitting a message includes a communication adapter receiving, from a transmitting device, a request to send the message. The method further includes modifying a maximum transfer unit (MTU) to obtain a modified MTU, transmitting, from the communication adapter to a receiving system, a first sub-unit of the message using the modified MTU, iteratively increasing the MTU for transmitting intermediate sub-units of the message until an MTU limit is reached, and transmitting, to the receiving system, the intermediate sub-units of the message. The intermediate sub-units are transmitted after the first sub-unit and before a second sub-unit. The method further includes transmitting, from the communication adapter to the receiving system, the second sub-unit to the receiving system using a full path MTU.

Abstract: The systems and methods described herein allow for the scaling of output-buffered switches by decoupling the data path from the control path. Some embodiment of the invention include a switch with a memory management unit (MMU), in which the MMU enqueues data packets to an egress queue at a rate that is less than the maximum ingress rate of the switch. Other embodiments include switches that employ pre-enqueue work queues, with an arbiter that selects a data packet for forwarding from one of the pre-enqueue work queues to an egress queue.

Abstract: A communication system, network, interface, and port architecture are provided for transporting data across a network. The network can be arranged by connecting the ports in a daisy chain fashion to achieve a ring architecture or topology. The network forwards data according to a specific network protocol. A first port forwards frames having a preemptive acknowledge field before the payload. A second port receives these frames, stores them in a frame buffer and modifies the preemptive acknowledge field according to its available frame buffer capacity. Said first port controls its data flow according to the modified preemptive acknowledge field.

Abstract: A loop method for determining transmission orders of asynchronous packets includes the steps of: classifying the asynchronous packets into a number of groups according to their lengths; and judging whether a length of a packet belonging to a longest-length packet group is smaller than or equal to a remained bandwidth of an asynchronous transmission period. If yes, the packet is transmitted in the asynchronous transmission period and the step is repeated to transmit other packets of the longest-length packet group. If not, it is judged whether a length of a packet belonging to a second-longest-length packet group is smaller than or equal to the remained bandwidth of the asynchronous transmission period to transmit the packets of the second-longest-length packet group. These steps are repeated until a shortest-length packet group is greater than the remained bandwidth.

Abstract: A network device implements automatic configuration of Quality of Service (QoS) parameters in response to operator specification of a relatively few and easily understandable “high level” parameters such as, for example, latency requirements or an acceptable rate of packet drops. In one implementation, a network device may receive user preference information that relates to a Quality of Service (QoS) for network traffic passing through the network device and may measure traffic patterns through the network device. The device further generates a configuration template based on the measured traffic patterns and on the user preference information transmit the data in an order of transmission that is prioritized according to a bandwidth allocation policy defined by the configuration template.

Abstract: Techniques for delays based on packet sizes are provided. Request messages may identify the size of a data packet. Delays may be initiated based in part on a portion of the size of the data packet. The delays may also be based in part on target issue intervals. Request messages may be sent after the delays.

Abstract: The present invention discloses a method and a device for fast pushing a unicast stream in a Fast Channel Change (FCC), and relates to the field of Internet Protocol Television (IPTV). A server obtains a multicast join delay of a terminal, determines a minimum value of a data amount between a starting position of a fast unicast stream and a latest packet position according to the multicast join delay of the terminal, a decoding rate, a unicast push rate, and a lowest buffer data amount required for decoding, judges whether a latest I frame completely arrives according to a packet buffer state; and fast pushes the unicast stream starting from the latest I frame if the latest I frame completely arrives, and an arrived data amount starting from the latest I frame is greater than or equal to the minimum value.

Abstract: Presented herein are system(s) for demultiplexing, merging, and duplicating packetized elementary stream/program stream/elementary stream data. In one embodiment, there is presented a system for processing data. The system comprises a first circuit and a memory. The first circuit receives transport packets carrying the data. The memory stores data and comprises at least one context. The first circuit maps the data associated with at least one channel to the at least one context.

Abstract: An integrated circuit is disclosed. The integrated circuit includes a receive port interface to receive request data at a first data rate from a first host and a transmit port interface. The transmit port interface to transmit response data words across plural serial lanes to a second host at a second data rate. The second data rate is less than a predefined line rate of symbol transfers across the plural serial lanes. The transmit port interface includes shaping logic to transmit a data word stream at the second data rate and selectively insert idle words into the data word stream such that the data words and the idle words are together transferred at the predefined line rate.

Abstract: A forwarding system includes a first processor coupled to connecting devices using a plurality of uplinks, and a second processor coupled to the connecting devices using a plurality of downlinks. The first processor includes, in a memory, one or more queues each corresponding to the second processor, a priority, and/or to a packet cast type (e.g., unicast or multicast). The first processor is configured to select a particular queue, select a particular uplink based on a comparison of measurements corresponding to respective loads of the plurality of uplinks, and cause a fragment or the entirety of a packet in the particular queue to be forwarded to the second processing device using the selected uplink and corresponding connecting device. The second processor is configured to reassemble the packet, reorder the packet into a flow, and forward the packet from the forwarding system.

Abstract: A data processing method and system and relevant devices are provided to improve the processing efficiency of cores. The method includes: storing received packets in a same stream sequentially; receiving a Get_packet command sent by each core; selecting, according to a preset scheduling rule, packets for being processed by each core among the stored packets; receiving a tag switching command sent by each core, where the tag switching command indicates that the core has finished a current processing stage; and performing tag switching for the packets in First In First Out (FIFO) order, and allocating the packets to a subsequent core according to the Get_packet command sent by the subsequent core after completion of the tag switching, so that the packet processing continues until all processing stages are finished. A data processing system and relevant devices are provided. With the present invention, the processing efficiency of cores may be improved.

Abstract: A Small Computer System Interface (SCSI) transport for fabric backplane enterprise servers provides for local and remote communication of storage system information between storage sub-system elements of an ES system and other elements of an ES system via a storage interface. The transport includes encapsulation of information for communication via a reliable transport implemented in part across a cellifying switch fabric. The transport may optionally include communication via Ethernet frames over any of a local network or the Internet. Remote Direct Memory Access (RDMA) and Direct Data Placement (DDP) protocols are used to communicate the information (commands, responses, and data) between SCSI initiator and target end-points. A Fiber Channel Module (FCM) may be operated as a SCSI target providing a storage interface to any of a Processor Memory Module (PMM), a System Control Module (SCM), and an OffLoad Module (OLM) operated as a SCSI initiator.

Abstract: In a method for processing network packets, a network packet is received at an ingress port. After at least a first portion of the network packet has been received, but before the network packet has been completely received, a first data structure representing the network packet is generated based on the first portion, the first data structure is processed, and the network packet begins to be selectively forwarded to a first one or more egress ports, or selectively not forwarded to any egress port, responsively to processing the first data structure. A second data structure representing the network packet is generated and, after the network packet has been completely received, the second data structure is processed, and the network packet is selectively forwarded to a second one or more egress ports, different from the first one or more egress ports, responsively to processing the second data structure.

Abstract: In a method for processing network packets, a network packet is received at an ingress port. Before the network packet has been completely received at the ingress port, a first data structure representing the network packet is generated based on a received first portion of the network packet, and the first data structure is processed at a packet processor of the network device. Processing the first data structure includes making a forwarding decision for the network packet. A second data structure representing the network packet is generated and, after the network packet has been completely received at the ingress port, at least one or more non-forwarding operations are performed with respect to the network packet using at least the second data structure.

Abstract: A data structure is provided for storing network contact information based on an array of physical memory locations. Virtual vectors are constructed for each source, wherein each element in each virtual vector is assigned to a corresponding physical memory location within the array. The physical memory locations are shared between the virtual vectors uniformly at random so that the noise introduced by sharing can be predicted and removed. A method for storing network contact information is also provided in which a hash function is performed using the address of a source host to find a virtual vector for holding information about the source host. A second hash function is performed using the address of a destination host to find a virtual memory location, within the virtual vector, for holding information about the destination host. Finally, information is stored at a physical memory location assigned to the virtual memory location.

Abstract: A method and system may allow for adjusting network latency experienced by a user. A first computing device may send a request to adjust the latency experienced by a terminal associated with a user. The request may be received at a second computing device which may identify a buffer size for to the terminal associated with the user. A new buffer size may be determined and adjusted for the identified buffer based on the received request.

Abstract: A computer-implemented method for establishing a communications link between a source and a target comprises: a) receiving, at a server, data identifying the source and the target; b) for each of the source and the target, retrieving a respective communication profile identifying one or more communications systems by which the respective one of the source or target may be communicated with; c) comparing the profiles to identify one or more common communications systems; and d) opening a communications link between the source and the target using one or more of the common communication systems.