Abstract: Network device for transmitting packets having packet properties, including at least two input-output-buffers for queuing packets in the network device; a sojourn time calculator for calculating a sojourn related time for each head packet in the at least two input-output-buffers; a sojourn related time adaptor for, based on an adaptation function assigned to the corresponding input-output-buffer, adapting the sojourn related time into an adapted time for each head packet in the at least two input-output-buffers; and a scheduler for scheduling outgoing packets based on the adapted time.

Abstract: A manner of managing congestion in a data-traffic network. In one embodiment a network node such as a bridge, switch, or router includes an AQM having a PI controller configured to calculate p? using the difference between Q and a Target Q, wherein p? is p0.5 and p is the probability that a received packet will be dropped or marked, and some drop decision functions are configured to indicate that the node should drop a received packet by comparing p? to two random values. A marking decision function may also be present and configured to indicate that the node should mark a received packet by comparing p? to one random value. A congestion control classifier, which is in some embodiments an ECN classifier, is also present to classify a received packet and facilitate making the proper dropping or marking decision.

Abstract: A method for queue management in a packet-switched network including at an intermediate node receiving first packets belonging to a first class associated with a first queue management mechanism and second packets belonging to a second class associated with a second queue management mechanism; marking or dropping of the first packets in accordance with the first queue management mechanism and marking or dropping of the second packets in accordance with the second queue management mechanism; and coupling the marking or dropping of the second packets to the marking or dropping of the first packets.

Abstract: A manner of managing congestion in a data-traffic network. In one embodiment a network node such as a bridge, switch, or router includes an AQM having a PI controller configured to calculate p? using the difference between Q and a Target Q, wherein p? is p0.5 and p is the probability that a received packet will be dropped or marked, and some drop decision functions are configured to indicate that the node should drop a received packet by comparing p? to two random values. A marking decision function may also be present and configured to indicate that the node should mark a received packet by comparing p? to one random value. A congestion control classifier, which is in some embodiments an ECN classifier, is also present to classify a received packet and facilitate making the proper dropping or marking decision.

Abstract: The present invention is related to an intermediate node, an end node, and method for avoiding latency in a packet-switched network. According to the invention, the maximum bandwidth per flow is determined locally and transferred from the sending node to the receiving node. At each node, the information is updated if a lower local value is computed. By adjusting the transmission rate based on the maximum bandwidth per flow receiving at the receiving node, the link capacity can be optimally utilized and congestion can be minimized.

Abstract: Network device for transmitting packets having packet properties, including at least two input-output-buffers for queuing packets in the network device; a sojourn time calculator for calculating a sojourn related time for each head packet in the at least two input-output-buffers; a sojourn related time adaptor for, based on an adaptation function assigned to the corresponding input-output-buffer, adapting the sojourn related time into an adapted time for each head packet in the at least two input-output-buffers; and a scheduler for scheduling outgoing packets based on the adapted time.

Abstract: A manner of managing congestion in a data-traffic network. In one embodiment a network node such as a bridge, switch, or router includes an AQM having a PI controller configured to calculate p? using the difference between Q and a Target Q, wherein p? is p0.5 and p is the probability that a received packet will be dropped or marked, and some drop decision functions are configured to indicate that the node should drop a received packet by comparing p? to two random values. A marking decision function may also be present and configured to indicate that the node should mark a received packet by comparing p? to one random value. A congestion control classifier, which is in some embodiments an ECN classifier, is also present to classify a received packet and facilitate making the proper dropping or marking decision.

Abstract: A method for queue management in a packet-switched network including at an intermediate node receiving first packets belonging to a first class associated with a first queue management mechanism and second packets belonging to a second class associated with a second queue management mechanism; marking or dropping of the first packets in accordance with the first queue management mechanism and marking or dropping of the second packets in accordance with the second queue management mechanism; and coupling the marking or dropping of the second packets to the marking or dropping of the first packets.

Abstract: The present invention is related to an intermediate node, an end node, and method for avoiding latency in a packet-switched network. According to the invention, the maximum bandwidth per flow is determined locally and transferred from the sending node to the receiving node. At each node, the information is updated if a lower local value is computed. By adjusting the transmission rate based on the maximum bandwidth per flow receiving at the receiving node, the link capacity can be optimally utilized and congestion can be minimized.

Abstract: A method of providing an Internet protocol television service to a subscriber, and a network element to execute this method. At an acquisition tier, IPTV packets are generated from video stream data of one or more video channels and transmitted to a FCC server cluster at a client-facing tier. IPTV packets associated with one of the one or more video channels selected by the subscriber are delivered from the deliver server cluster to a receiver of the subscriber at a client tier wherein the IPTV packets associated with the one of the one or more video channels are reassembled at said receiver into a coherent video stream. Said generated IPTV packets are routed from a network (5) of a TV broadcaster to networks of one or more TV operators or from a network of a TV operator to networks of one or more TV operators by means of IPTV service routers installed at an intertwine tier arranged between the acquisition tier and the client-facing tier.

Abstract: The present invention relates to an IPTV Channel selection device, for use in an IPTV system said IPTV system comprising a meta-information holding part that is adapted to store meta-information on each channel of a plurality of IPTV channels, wherein the IPTV Channel selection device comprises a selection engine that is adapted to select at least one IPTV channel from said plurality of IPTV channels based on meta-information on each channel of said plurality of IPTV channels in combination with at least one user-related selection criterion.

Abstract: A scheduled channel device for an Internet Protocol Television (IPTV) system is provided, said scheduled channel device comprising means adapted to receive a video schedule which is programmed by a user and which identifies video items of at least one source available in said IPTV system that said user desires to view sequentially or according to a time scheme, characterized in that said scheduled channel device further comprises means adapted to control timely delivery of said video items by said at least one video source for streaming said video items over one dedicated channel towards said user. Further a method for providing such IPTV system is provided.

Abstract: A method of providing an Internet protocol television service to a subscriber, and a network element to execute this method. At an acquisition tier, IPTV packets are generated from video stream data of one or more video channels and transmitted to a FCC server cluster at a client-facing tier. IPTV packets associated with one of the one or more video channels selected by the subscriber are delivered from the deliver server cluster to a receiver of the subscriber at a client tier wherein the IPTV packets associated with the one of the one or more video channels are reassembled at said receiver into a coherent video stream. Said generated IPTV packets are routed from a network (5) of a TV broadcaster to networks of one or more TV operators or from a network of a TV operator to networks of one or more TV operators by means of IPTV service routers installed at an intertwine tier arranged between the acquisition tier and the client-facing tier.

Abstract: A sending transmission control protocol (TCP) host is used in a first network node (106) to transmit TCP flows over a network segment to a receiving TCP host in a second network node (104). The sending TCP host comprises a TCP convergence module for aggregating all TCP flows through the network segment between the first network node (106) and the second network node (104) into an aggregate TCP flow (112). The receiving TCP host comprises a TCP convergence module for disaggregating the TCP flows from the aggregate TCP flow (112).