Techniques are described to provide multipath mobility via Domain Name System-as-an-Authoritative Source (DNS-AS) techniques. In one example, a method includes obtaining, by a multipath policy decision element, a plurality of multipath policy recommendations for an application, wherein the plurality of multipath policy recommendations are obtained from one or more multipath policy recommendation elements; combining the plurality of multipath policy recommendations to generate a policy enforcement decision, wherein the policy enforcement decision identifies, at least in part, one or more network paths that are to be utilized for one or more packet flows associated with the application, wherein each of the one or more network paths is associated with an access type; and enforcing the policy enforcement decision for one or more packet flows associated with the application.

Example network devices, systems, and methods are disclosed. In an example, a network device includes memory configured to store information associated with one or more service level agreements (SLAs) for applications in a software-defined wide area network (SD-WAN) and an application-based multipath routing (AMR) module including processing circuitry. The AMR module is configured to identify, based on criteria, one or more of the applications for AMR, wherein each criterion of the criteria is associated with a corresponding property of an application. The AMR module is configured to determine a breach of one of the SLAs on each WAN link associated with a first application of the identified one or more applications. The AMR module is configured to apply, in response to determining the breach, AMR for the first application.

A system for delivering notification messages across different notification media comprises a processor. A processor is configured to provide an indication of a new platform notification channel to one or more platform notification services. The indication is provided to one of the one or more platform notification services through a communication module specific to the one of the one or more platform notification services. The processor is configured to create a mapping from a new universal notification channel to a set of one or more platform notification channel identifiers. Each platform notification channel identifier of the set of platform notification channel identifiers is received from a platform notification service. The processor is configured to provide the set of one or more platform notification channel identifiers to a content provider of the new universal notification channel. The processor is coupled to the memory and is configured to store instructions.

Techniques for using application network requirements and/or telemetry information from a first networking technology to enhance operation of a second networking technology and optimize wide area network traffic are described herein. The techniques may include establishing a communication network for use by applications of a scalable application service platform, the communication network including a first networking technology and a second networking technology. In this way, a request to establish a connection for use by an application may be received by the first networking technology. The request may include an indication of a threshold service level of the connection. In response to the request, the first networking technology may determine whether the second networking technology is capable of hosting the connection. If the second networking technology is capable of hosting the connection, the connection may be established such that application traffic is sent or received using the second networking technology.

A method may include identifying an address within a packet of a traffic flow associated with a network device. The method may also include comparing the address within the packet with a stored address, the stored address associated with a route for an alternative traffic path, where the alternative traffic path may be different from a default route of traffic passing through the network device. The method may additionally include, based on the address within the packet matching the stored address, routing the packet along the alternative traffic path instead of the default route of traffic.

Provided are a method for obtaining a route selection policy, a method for performing a route selection policy rule, an apparatus, a device and a computer-readable storage medium therefor. The method includes: generating a route selection policy rule for a terminal; transmitting an application function response to an application function network element after generation of the route selection policy rule for the terminal; and providing, to the terminal, the route selection policy rule, wherein the route selection policy rule includes at least one of a valid time or a valid location, the valid time representing a time at which the route selection policy rule is applicable, and the valid location representing a geographical location at which the route selection policy rule is applicable.

A first communications device may use one or a plurality of communications connections in parallel for a communications session between the first communications device and the second communications device. The first device makes decisions as to the number of connections to use, the level of error correcting code to use, and/or the level of packet redundancy to use based on test scores corresponding to one or more communications session connections. The first communications device generates a first test score corresponding to a first communications session connection based on a test performed over a first test path between the first communications device and a test server, said first communications session connection and the first test path sharing a common link, e.g., a common wireless link between the first device and an access point. The first device may generate and use an overall connection score corresponding to a plurality of session connections.

Some embodiments provide novel methods for performing services for machines operating in one or more datacenters. For instance, for a group of related guest machines (e.g., a group of tenant machines), some embodiments define two different forwarding planes: (1) a guest forwarding plane and (2) a service forwarding plane. The guest forwarding plane connects to the machines in the group and performs L2 and/or L3 forwarding for these machines. The service forwarding plane (1) connects to the service nodes that perform services on data messages sent to and from these machines, and (2) forwards these data messages to the service nodes. In some embodiments, the guest machines do not connect directly with the service forwarding plane. For instance, in some embodiments, each forwarding plane connects to a machine or service node through a port that receives data messages from, or supplies data messages to, the machine or service node. In such embodiments, the service forwarding plane does not have a port that directly receives data messages from, or supplies data messages to, any guest machine. Instead, in some such embodiments, data associated with a guest machine is routed to a port proxy module executing on the same host computer, and this other module has a service plane port. This port proxy module in some embodiments indirectly can connect more than one guest machine on the same host to the service plane (i.e., can serve as the port proxy module for more than one guest machine on the same host).

A method is applied to a ring link, where the ring link includes a first node, a second node, a third node, and a fourth node in sequence. According to the method, the first node receives first traffic, where the first node is a source node that sends the first traffic on the ring link; and the first node sends the first traffic to the third node, where two reachable paths with equal hop counts are included from the first node to the third node, the first node sends the first traffic to the third node on a preset first transmission path, the first transmission path passes through the second node, and the first transmission path is one of the two reachable paths with equal hop counts. This method can reduce computing load of nodes while implementing non-blocking switching of traffic between the nodes.

A communication method and a communications apparatus are provided, to verify a user equipment route selection policy (URSP) used by a terminal apparatus. The communication method includes: obtaining information about a first application of at least one packet data unit (PDU) session, where the information about the first application is determined based on a first URSP; and sending the information about the first application to a. second network element, where the information about the first application is used to verify whether information about a second application of the at least one PDU session matches the information about the first application, and the information about the second application is information about an application to which a data packet in the at least one PDU session belongs.