摘要:
An intelligent switch and method are described herein which help to effectively retransmit a lost packet that is associated with a television broadcast stream to one or more set-top boxes.
摘要:
A bridged network system (20). The bridged network system comprises a plurality of bridge nodes (N0-N7). Each bridge node in the plurality of bridge nodes is coupled to communicate with at least one other bridge node in the plurality of nodes. Further, bridge nodes in the plurality of bridge nodes are connected to one another to form a communications-possible line of bridge nodes (N0, N7, N6, N5, N1, N4, N3, N2). Each bridge node comprises circuitry for associating a bridge priority, selected from a plurality of bridge priorities, with the respective bridge node. The plurality of bridge priorities may be arranged in an ordered sequence, but the bridge priorities associated with successive bridge nodes along the communications-possible line of bridge nodes comprises at least two discontinuities (N0/N7; N1/N5; N1/N4) in the ordered sequence.
摘要翻译:桥接网络系统(20)。 桥接网络系统包括多个桥接节点(N N-N 7)。 多个桥接节点中的每个桥节点被耦合以与多个节点中的至少一个其他网桥节点进行通信。 此外,多个桥接节点中的桥节点彼此连接以形成桥接节点(N SUB,N N,N N,N N) 6,N 5,N 1,N 4,N 3,N 3, 2 SUB>)。 每个桥节点包括用于将从多个桥优先级中选择的桥优先级与相应的桥节点相关联的电路。 多个桥优先级可以以有序的顺序排列,但是沿着桥接节点的通信可能线路的连续网桥节点相关联的桥优先级包括至少两个不连续性(N N 0 / N 7 N> N N 1 N N N N N N N N N N N N N N N N N N N N N N N 序列。
摘要:
An intelligent switch and method are described herein which help to effectively retransmit a lost packet that is associated with a television broadcast stream to one or more set-top box(es) (STBs). In one embodiment, the intelligent switch functions as follows: (a) receives, from one of the STBs, a request for a retransmission of a lost packet; (b) forwards, to a broadcast television (BTV) server, the request for the retransmission of the lost packet; (c) initiates a suppression period during which if subsequent request(s) for the retransmission of the same lost packet are received from other STB(s) then the subsequent request(s) would not be forwarded to the BTV server; (d) receives, from the BTV server, a retransmitted lost packet which is associated with the request for the retransmission of the lost packet; and (e) sends the retransmitted lost packet to the STB which sent the request for the retransmission of the lost packet and to the other STB(s) which sent the subsequent request(s) for the retransmission of the lost packet.
摘要:
A monitoring system and method are described herein that obtain retry request information from packet recovery server(s) and based at least in part on the obtained retry request information determine whether or not to launch probes to monitor specific network element(s) within an Internet Protocol Television (IPTV) network to diagnose a problem without having to monitor everyone of the network elements all of the time.
摘要:
A bridged network system (20). The bridged network system comprises a plurality of bridge nodes (N0-N7). Each bridge node in the plurality of bridge nodes is coupled to communicate with at least one other bridge node in the plurality of nodes. Further, bridge nodes in the plurality of bridge nodes are connected to one another to form a communications-possible line of bridge nodes (N0, N7, N6, N5, N1, N4, N3, N2). Each bridge node comprises circuitry for associating a bridge priority, selected from a plurality of bridge priorities, with the respective bridge node. The plurality of bridge priorities may be arranged in an ordered sequence, but the bridge priorities associated with successive bridge nodes along the communications-possible line of bridge nodes comprises at least two discontinuities (N0/N7; N1/N5; N1/N4) in the ordered sequence.
摘要翻译:桥接网络系统(20)。 桥接网络系统包括多个桥接节点(N N-N 7)。 多个桥接节点中的每个桥接节点被耦合以与多个节点中的至少一个其他网桥节点进行通信。 此外,多个桥接节点中的桥节点彼此连接以形成桥接节点(N SUB,N N,N N,N N) 6,N 5,N 1,N 4,N 3,N 3, 2 SUB>)。 每个桥节点包括用于将从多个桥优先级中选择的桥优先级与相应的桥节点相关联的电路。 多个桥优先级可以以有序的顺序排列,但是沿着桥接节点的通信可能线路的连续网桥节点相关联的桥优先级包括至少两个不连续性(N N 0 / N 7 N> N N 1 N N N N N N N N N N N N N N N N N N N N N N N 序列。
摘要:
Customer virtual local area networks (C-VLANs) connecting multiple LAN segments are set up through a provider network (12). Provider edge bridges (PEs) are coupled to customer edge bridges (CEs) to provide a transparent link between LAN segments. To determine whether a backdoor link is used in the C-VLAN topology, PEs monitor MAC address from a predetermined time after a TCN is received to determine if there are contradictory addresses or new addresses relative to the existing MAC address tables (or forwarding databases) that are indicative of a backdoor link. If so, an unlearning message is sent to bridges in the provider domain. In another embodiment, CEs set a snoop bit to indicate which TCNs must be snooped.
摘要:
System and method for providing fast protection in a passive optical network (“PON”) including two central hubs and a plurality of network nodes, wherein the network nodes are connected to a first of the central hubs by a first optical path and to a second of the central hubs by a second optical path. The method comprises setting the first and second central hubs to master mode and slave mode, respectively, such that only the first central hub transmits traffic to and from the network nodes; detecting a failure in the first optical path; exchanging status information between the first and second central hubs; and if no failure has occurred in the second optical path, setting the first and second central hubs to slave mode and master mode, respectively, such that only the second central hub transmits traffic to and from the network nodes.
摘要:
A method and an Ethernet local area network are described herein in which the Ethernet local area network is configured to enable a talking device (e.g., microphone) to send a media stream to one or more listening devices (e.g., speakers). In one embodiment, the method for configuring the Ethernet local area network includes the following steps: (1) providing a user of a talking device with a “relevant” catalog which contains information including positional information about one or more listening devices; (2) allowing the user to interface with the “relevant” catalog so they can select at least one of the listening device(s); (3) enabling the talking device to send a subscribe-request message to the selected listening device(s) requesting that the selected listening device(s) subscribe to the talking device; (4) and sending a media stream from the talking device to the selected listening device(s).
摘要:
System and method for providing fast protection in a passive optical network (“PON”) including two central hubs and a plurality of network nodes, wherein the network nodes are connected to a first of the central hubs by a first optical path and to a second of the central hubs by a second optical path. The method comprises setting the first and second central hubs to master mode and slave mode, respectively, such that only the first central hub transmits traffic to and from the network nodes; detecting a failure in the first optical path; exchanging status information between the first and second central hubs; and if no failure has occurred in the second optical path, setting the first and second central hubs to slave mode and master mode, respectively, such that only the second central hub transmits traffic to and from the network nodes.
摘要:
A spatial monitoring-correlation mechanism and a method are described herein for determining an origin of a problem within an Internet Protocol Television (IPTV) network by using topology information about the IPTV network and at least one error notification (e.g., packet loss notification-retransmission request) that is generated by at least one component (e.g., set-top box) within the IPTV network.