Delivery of high quality video in an adaptive bit rate (ABR) download session is achieved using obtained using lower quality communication paths. The method involves detecting that an ABR download session of a video is in a steady-state condition. If so a further determination is made as to whether there is sufficient pre-fetch time available to download an (N+1)th video segment of the video using at alternative connection path through a virtual WAN having a lower quality than a first connection path through the virtual WAN. If sufficient pre-fetch time is available, the (N+1)th video segment is prefetched using at least the second connection path instead of the first connection path.

A method of calculating a new route for a media data traffic flow on a computer network when a device is connected to the network, the network comprising a first and a second network switch connected by a link, the method comprising: determining whether media data traffic already flows between the first and second network switch over the link; applying a weighting to the link whose value is based on whether media data traffic already flows over the link; and determining the new route for media data traffic by using a least cost path generation algorithm using the weighting.

Methods and systems are provided for latency-oriented router. An incoming packet is received on a first interface. The type of the incoming packet is determined. Upon the detection that the incoming packet belongs to latency-critical traffic, the incoming packet is duplicated into one or more copies. Subsequently, the duplicated copies are sent to a second interface in a delayed fashion where the duplicated copies are spread over a time period. The duplicated copies are received and processed at the second interface.

A method and device for transmitting or receiving a broadcast signal are discussed. The method for transmitting the broadcast signal can include processing one or more Internet Protocol (IP) packets into link layer packets, processing the link layer packets to output the broadcast signal, and transmitting the broadcast signal. The one or more IP packets can carry components of a service and service signaling information for signaling the components of the service. The broadcast signal can further include a service list table. The service list table can include one or more of service identification information for identifying the service, capabilities information related to the service, channel number information of the service, category information for indicating a type of the service, protocol information for representing a type of a protocol used to deliver the service signaling information.

A routing system can provide a Dynamic-Hybrid Forwarding Information Base (DHFIB). A control component of the routing system can build a routing table that includes routing information (e.g., prefixes, addresses, etc.) for use by a first routing component. The routing table can be ordered or ranked based on traffic information from the first routing component. Then, the control component can create the DHFIB from the routing table, wherein the DHFIB is a portion of the routing table and related to the first routing component. As such, the portion of the routing table selected for the DHFIB can be the set of prefixes in the routing table that represent the most frequently routed or most important prefixes in the routing table. Finally, the control component can forward the DHFIB to the first routing component to allow the routing component to route communications.

A network device obtains Border Gateway Protocol (BGP) flow specification (FlowSpec) information, and generates, based on the BGP FlowSpec information, a first forwarding information base (FIB) table entry including a first prefix and an action, where the BGP FlowSpec information indicates to perform an action on traffic matching a filter condition, where the filter condition includes an attribute of a destination address, where the first FIB table entry indicates the network device to perform the action on the traffic matching the first prefix, and where an attribute of the first prefix is the same as the attribute of the destination address in the filter condition.

Some embodiments provide a method that receives (i) definition of a group of virtual datacenters and (ii) addition of at least two virtual datacenters to the group. Each virtual datacenter is defined in a public cloud and includes a set of network management components and a set of network endpoints connected by a logical network that is managed by the network management components of the virtual datacenter. Based on the definition of the group, the method configures a gateway router to which each of the virtual datacenters of the group connect. The gateway router is for routing traffic between the virtual datacenters of the group. The method also configures, at each respective virtual datacenter, a respective router to route data traffic between the respective virtual datacenter and the other virtual datacenters to route traffic for the other virtual datacenters to the gateway router.

Exemplary surveillance system is provided having a plurality of data generating devices, and nodes for data handling of the data streams generated from the data generating devices. The system may be configured to fragment the data streams and store the fragments among the plurality of nodes of the system. The system may be configured to redundantly transmit data through the nodes so the fragmented data stream arrive at the desired location for storage. The data transmission may permit redirection or retransmission based on node or data transmission failure.

Described herein are systems, methods, and software to manage secure tunnel communications in multi-edge gateway computing environments. In one implementation, a control system identifies an edge gateway from a plurality of edge gateways to support a private network tunnel. The control system further identifies addressing attributes associated with communications directed over the private network tunnel and configures the plurality of edge gateways to forward packets associated with the addressing attributes to the identified edge gateway, wherein the edge gateway can process and forward the packets over the private network tunnel.

Methods and systems are provided for latency-oriented router. An incoming packet is received on a first interface. The type of the incoming packet is determined. Upon the detection that the incoming packet belongs to latency-critical traffic, the incoming packet is duplicated into one or more copies. Subsequently, the duplicated copies are sent to a second interface in a delayed fashion where the duplicated copies are spread over a time period. The duplicated copies are received and processed at the second interface.