Some embodiments provide a method for quantifying quality of several service classes provided by a link between first and second forwarding nodes in a wide area network (WAN). At a first forwarding node, the method computes and stores first and second path quality metric (PQM) values based on packets sent from the second forwarding node for the first and second service classes. The different service classes in some embodiments are associated with different quality of service (QoS) guarantees that the WAN offers to the packets. In some embodiments, the computed PQM value for each service class quantifies the QoS provided to packets processed through the service class. In some embodiments, the first forwarding node adjusts the first and second PQM values as it processes more packets associated with the first and second service classes. The first forwarding node also periodically forwards to the second forwarding node the first and second PQM values that it maintains for the first and second service classes. In some embodiments, the second forwarding node performs a similar set of operations to compute first and second PQM values for packets sent from the first forwarding node for the first and second service classes, and to provide these PQM values to the first forwarding node periodically.

Techniques described herein improve viewer experience by leveraging the ability of a viewer's device to access an over-the-top (OTT) content via the device's multi-channel connections to an OTT content server. In an example embodiment, the device receives the OTT content via a first channel and performs cross-party diagnostic testing through a second channel. In this embodiment, a diagnostic app in the device compares measured signals in the first channel with a first set of threshold values and further compares acquired telemetry data in the second channel with a second set of threshold values. Based on the comparison results, the device determines the possible root cause of the interruption. Further, the device performs an in-depth diagnostic testing on a determined possible root cause (e.g., OTT content server) and sends an in-depth diagnostic report to a viewer.

A system may receive, by a switching component of the system, network traffic to be provided to an I/O component of the network device. The system may route, by the switching component, the network traffic to the I/O component based on whether the I/O component is connected to the switching component via the first connections and/or via second connections. The first connections may be connections via a chassis of the system. The second connections may be connections via a connector component that is removable from the switching component. The network traffic may be routed via the first connections and the second connections when the I/O component is connected via the first connections and the second connections. The network traffic may be routed via the first connections and not via the second connections when the I/O component is connected via the first connections and not via the second connections.

An example programmable integrated circuit (IC) includes a processor, a plurality of endpoint circuits, a network-on-chip (NoC) having NoC master units (NMUs), NoC slave units (NSUs), NoC programmable switches (NPSs), a plurality of registers, and a NoC programming interface (NPI). The processor is coupled to the NPI and is configured to program the NPSs by loading an image to the registers through the NPI for providing physical channels between NMUs to the NSUs and providing data paths between the plurality of endpoint circuits.

Some embodiments of the invention provide a forwarding element that can be configured through in-band data-plane messages from a remote controller that is a physically separate machine from the forwarding element. The forwarding element of some embodiments has data plane circuits that include several configurable message-processing stages, several storage queues, and a data-plane configurator. A set of one or more message-processing stages of the data plane are configured (1) to process configuration messages received by the data plane from the remote controller and (2) to store the configuration messages in a set of one or more storage queues. The data-plane configurator receives the configuration messages stored in the set of storage queues and configures one or more of the configurable message-processing stages based on configuration data in the configuration messages.

A device for communication includes a processor and a transmitter. The processor is configured to determine a target quality of service (QoS). The processor is also configured to determine, based on the target QoS, a transmission schedule identifying one or more transmission time-blocks. The transmitter is configured to transmit data to at least one device during a transmission time-block of the one or more transmission time-blocks.

A small form-factor pluggable (SFP) transceiver is detected to be plugged into an SFP port of the network router following a bootup of the network router. Information on one or more device features of the SFP transceiver is obtained from the SFP transceiver plugged into the SFP port of the network router. Subsequently, a port configuration policy that corresponds to the one or more device features of the SFP transceiver and one or more router parameters of the network router is applied to the SFP port of the network router.

A data packet extraction method and apparatus is disclosed. Two hash values calculated based on quintuple information of different data packets of a same session are the same, that is, two calculated remainders are also the same at a same sampling ratio. When one remainder of the two calculated remainders is a preset sampling remainder, all the data packets in a network that belong to the session are extracted, so as to implement data packet extraction based on a session. When the quintuple information of the different data packets of the same session matches a first mapping table, either all the data packets of the same session can match the first mapping table, or none of the data packets of the same session can match the first mapping table, so as to implement data packet extraction based on a session.

Embodiments of the present invention provide a method and a device for allocating a packet switching resource, which includes: receiving, by a management plane unit, a service transport request carrying service information, where the service information includes source node information, sink node information, quality of service QoS requirement information, and bandwidth requirement information; determining, by the management plane unit, at least one transport path according to the service information and a preset resource allocation policy, and generating a routing table entry/forwarding table entry according to the at least one transport path; and sending, by the management plane unit, the routing table entry/forwarding table entry to data plane units of packet switching devices of each transport path of the at least one transport path. According to the embodiments, transparent and controllable allocation of a network bandwidth resource is implemented, so that utilization efficiency of a network resource is improved.

A system includes a first device that communicates a first configuration signal, an IP address and port identifier to a second device. The second device includes a router having a quality of service module therein. The second device deep packet inspects communication signals destined for the first device based on the IP address and port identifier. The quality of service module applies a quality of service policy to the communication signals based on deep packet inspecting to form modified communication signals. The first device performs a function in response to the modified communication signals.