摘要:
An apparatus including a plurality of packet processors each included in one of a plurality of voice-over-internet-protocol (VoIP) network interfaces. Each of the plurality of packet processors is configured to cache a latest version of realtime transport control protocol (RTCP) report data by discarding an older version of the RTCP report data. The RTCP report data includes at least one of RTCP sender report data and RTCP receiver report data. The apparatus also includes a packet data switching matrix configured to switch packet data between ones of the plurality of VoIP network interfaces. A central processor of the apparatus is configured to generate a final session detail record upon the termination of a VoIP-session by selecting RTCP session-concluding report data from a plurality of RTCP final report data each cached by a corresponding one of the plurality of packet processors.
摘要:
Methods, systems, and computer program products for multipath Shortest-Path-First (SPF) computations and distance-based interface selection for VoIP traffic are disclosed. According to one method, a multi-path router instance associated with a plurality of network interfaces in a source IP device is provided. A cost is assigned to each of a plurality of internal segments between the multi-path router instance and the network interfaces associated with the multi-path router instance. An aggregate cost is calculated for each of a plurality of traffic paths originating at the multi-path router instance in the source IP device and extending through each of the network interfaces associated with the multi-path router instance to a destination IP device in the network. A list of IP paths is generated, and the paths in the list are ranked based on the calculated cost. Traffic is sent from the source IP device over at least one of the paths in the list. The path costs and rankings are updated in response to segment cost changes.
摘要:
A media gateway comprises a non-packet switching matrix operable to switch non-packetized data, a packet switching matrix operable to switch packetized data, a plurality of processing resources coupled to the non-packet and packet switching matrices, each processing resource processing a substantially equal load of multimedia sessions processed by the media gateway without inactive protecting resources.
摘要:
An apparatus that includes a packet data ingress, a packet data egress, and a packet data switching matrix configured to switch packet data from the packet data ingress to the packet data egress. The apparatus may further include a packet data jitter buffer and a packet data splitter, wherein the packet data splitter interposes the packet data ingress and the packet data switching matrix and is configured to multicast the packet data to the packet data switching matrix and the jitter buffer.
摘要:
A switching system includes at least one packet processing circuit interfacing with at least one packet transmission link. The switching system further includes a switch fabric coupled to the at least one packet processing circuit, whereby the switch fabric is operable to switch between channels receiving and transmitting data over the at least one packet transmission link and channels receiving and transmitting data over at least one non-packet transmission link interfaced by the switch fabric.
摘要:
Methods, systems, and computer program products for multipath Shortest-Path-First (SPF) computations and distance-based interface selection for VoIP traffic are disclosed. According to one method, a multi-path router instance associated with a plurality of network interfaces in a source IP device is provided. A cost is assigned to each of a plurality of internal segments between the multi-path router instance and the network interfaces associated with the multi-path router instance. An aggregate cost is calculated for each of a plurality of traffic paths originating at the multi-path router instance in the source IP device and extending through each of the network interfaces associated with the multi-path router instance to a destination IP device in the network. A list of IP paths is generated, and the paths in the list are ranked based on the calculated cost. Traffic is sent from the source IP device over at least one of the paths in the list. The path costs and rankings are updated in response to segment cost changes.
摘要:
A method of measuring network quality for VoIP calls comprises setting up a test call from a local IP endpoint to a remote IP endpoint reachable by a logical trunk group associated with the local IP endpoint, receiving statistical data regarding the test call, tearing down the test call, processing the statistical data and generating measurement results, and routing a VoIP call using a route selected based at least in part on the measurement results.
摘要:
A method of adaptive resource allocation in transmitting data is provided. In particular, the method of the present invention is applicable to scheduling bandwidths using a modified and dynamic weighted round robin process. The method includes the steps of allocating a resource to each of a plurality of data transmitting active connections, the plurality of active connections belonging to more than one class of service. Then the method determines a lender class of service for each active connection from which resources may be reallocated to the active connection, and periodically comparing the resource usage of an active connection to an upper threshold and a lower threshold. Borrowing action for resources from the lender class of service for the active connection is carried out in response to the current usage exceeding the upper threshold, and returning action for borrowed resources to the lender class of service from the active connection in response to the current usage being less than the lower threshold is carried out.