Abstract: A system and processes create a transport stream carrying several encapsulated contents, watermarks, and other ancillary data. The transport stream is re-multiplexed while keeping synchronous and deterministic operation. Synchronous deterministic operation allow each derived transport stream to be broadcasted in Single Frequency Networks, as all re-multiplexers have the same signal at the input and selecting the same content generates exactly the same stream in multiple locations.

Abstract: A method and system for preventing excessive flood packets from switching devices in a network for routing packets between a source station having an address and a destination station in the network having an address. A first packet directed toward the destination station is received over the network via an incoming traffic switch. The incoming traffic switch includes a table without the address of the destination station. The first packet is flooded over the plurality of switches. The flooded first packet is received at a front facing switch coupled to the destination station. The front facing switch has a table including the source address of the packet. The source address of packet is flushed from the table of the front facing switch. A response packet is sent from the destination station to the source station. The response packet is flooded to the incoming traffic switch. The flooded response packet is received at the incoming traffic switch.

Abstract: A communication network is operated by monitoring a bandwidth utilization of a shared network resource, performing a statistical analysis to determine a mean utilization peak and/or a utilization peak coefficient of variance, monitoring a bandwidth utilization of lines, ports, and/or channels associated with the shared network resource, performing a statistical analysis to determine a percentage M of the lines, ports, and/or channels whose consumption of bandwidth exceeds a first threshold percentage of the mean utilization peak, and determining whether to groom traffic carried by the shared network resource based on the mean utilization peak, the utilization peak coefficient of variance, and/or the percentage M.

Abstract: A method for identifying and prioritizing iSCSI traffic in an IP network. At least one iSCSI-aware switch which receives information identifying an iSCSI session, e.g., its iSCSI target port or IP address, may multicast such identifying information to let a second iSCSI-aware switch in the IP network know the information about the iSCSI session. The second iSCSI-aware switch may update its memory, software and hardware, so as to track the iSCSI session when the iSCSI session passes through it and give it priority over other network traffic.

Abstract: A system and processes create a transport stream carrying several encapsulated contents, watermarks, and other ancillary data. The transport stream is re-multiplexed while keeping synchronous and deterministic operation. Synchronous deterministic operation allow each derived transport stream to be broadcasted in Single Frequency Networks, as all re-multiplexers have the same signal at the input and selecting the same content generates exactly the same stream in multiple locations.

Abstract: An interval centroid-based watermark encoder encodes a watermark into a packet flow. Intervals are defined for the packet flow. Some of the intervals are selected as group A intervals while other intervals are selected as group B intervals. Group A and group B intervals are paired and assigned to watermark bits. A first or second value may be encoded by increasing the relative packet time between packets in either the group A (for the first bit value) or group B (for the second bit value) interval(s) of the interval pair(s) assigned to the watermark bits that are to represent the first or second bit value and the beginning of the same group interval(s). The relative packet times may be measured by a decoder and used to calculate a centroid difference for each interval pair. The centroid differences may be used to reconstruct the watermark.

Abstract: This invention relates to systems, methods and computer program code for testing, troubleshooting and evaluation of mobile phone network. We describe a method of processing network data which includes a plurality of session related parameters. The method comprises inputting one or more queries, a query defining a statistic relating to said parameters and to be computed from said network data, formatting a query to define said statistic in terms of one or more intermediate statistics from which said statistic is computable, operating with said formatted query to determine said one or more intermediate statistics, and storing these in a data store for analysis, preferably indexed by said parameters. Preferably entries for the parameters are stored at time positions in a data pipe.