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.

In one aspect, a computerized method of an application routing service includes the step of using a deep-packet inspection (DPI) technique on a first network flow to identify an applications The method includes the step of storing an Internet-protocol (IP) address and a port number used by the application and an identity of the application in a databases The method includes the step of detecting a second network flow. The method includes the step of identifying the IP address and the port number of the application in the second network flow. The method includes the step of looking up the IP address and the port number in the database. The method includes the step of identifying the application based on the IP address and the port number.

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.

Methods and apparatus for interfaces to manage direct network peerings. A system may include a data center, endpoint routers and a connectivity coordinator. The coordinator implements a programmatic interface defining connectivity operations. The coordinator receives a request for dedicated connectivity to data center resources, formatted according to the interface. The coordinator selects a target endpoint router at which to establish a physical link to implement the dedicated connectivity, and transmits a response identifying the target endpoint router and including configuration instructions for setting up a physical link for the dedicated connectivity.

In one embodiment, a method includes determining, by a first router, service level agreement (SLA) requirements for an application and generating, by the first router, first SLA characteristics for the first router. The first router is in an active mode within a network. The method also includes comparing, by the first router, the first SLA characteristics for the first router to the SLA requirements and determining, by the first router, second SLA characteristics for a second router. The second router is in a standby mode within the network. The method further includes comparing, by the first router, the second SLA characteristics for the second router to the SLA requirements and determining, by the first router, whether to lower a first hop redundancy protocol (FHRP) priority of the first router.

The present disclosure provides a method and device for forwarding a priority tag across network segments. The method includes the following steps: performing networking by using a Virtual Local Area Network (VLAN) interface to form a network; enabling a VLAN Class Of Service (COS) and differentiated service code point in a priority tag of a message transmitted in the network to correspond to each other; in response to layer-3 forwarding of the message, using the differentiated service code point priority tag for the message, and copying a VLAN COS value of the message at an entry of a switch to a VLAN COS value of the message at an exit; and in response to subsequent layer-2 forwarding of the message, using the VLAN COS priority tag for the message to distinguish a priority of the message.

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.