Example methods and systems for intent-based network virtualization design are disclosed. One example may comprise: obtaining configuration information and traffic information associated with multiple virtualized computing instances, processing the configuration information and traffic information to identify network connectivity intents and mapping the network connectivity intents to a logical network topology template. Based on a first switching intent, a first group may be assigned to a first logical network domain and the logical network topology template configured to include a first logical switching element. Based on a second switching intent, a second group may be assigned to a second logical network domain and the logical network topology template configured to include a second logical switching element. Based on a routing intent, the logical network topology template may be configured to include a logical routing element.

Some embodiments of the invention provide a method for deploying network elements for a set of machines in a set of one or more datacenters. The datacenter set is part of one availability zone in some embodiments. The method receives intent-based API (Application Programming Interface) requests, and parses these API requests to identify a set of network elements to connect and/or perform services for the set of machines. In some embodiments, the API is a hierarchical document that can specify multiple different compute and/or network elements at different levels of compute and/or network element hierarchy. The method performs automated processes to define a virtual private cloud (VPC) to connect the set of machines to a logical network that segregates the set of machines from other machines in the datacenter set. In some embodiments, the set of machines include virtual machines and containers, the VPC is defined with a supervisor cluster namespace, and the API requests are provided as YAML files.

Systems and methods for supporting SMA level abstractions at router ports for inter-subnet exchange of management information in a high performance computing environment. In accordance with an embodiment, a subnet manager in a local subnet is responsible for establishing and configuring a remote attribute a switch having a switch port configured as a router port. This remote attribute can comprise certain information about the local subnet, including connectivity information and port status information. On receiving a query from a remote subnet manager, via a SMP (or a vendor specific SMP), information contained in the remote attribute can be communicated back to the remote subnet manager.

A computing device includes processing circuitry coupled to a memory device, and an orchestration agent configured for execution by the processing circuitry. The orchestration agent is an agent of an orchestrator for a computing infrastructure that includes the computing device, wherein the orchestration agent is configured to: detect configuration events from the computing device to determine local configuration state of the computing device; aggregate the local configuration state from the computing device with configuration state from a network controller to generate aggregated configuration state; and store the aggregated configuration state for application to operation of the computing device.

The present application provides a method for routing traffic from a user equipment (UE) to a service available on a network. In the method, a virtual router entity that services a virtual network available on the network receives a packet from the UE, the received packet including at least a destination ID and payload. The virtual router then forwards a location resolution request including the received destination ID to an associated connectivity manager operating on the network. The virtual router receives a location resolution response from the connectivity manager including at least a destination network node ID. The virtual router may then forward the packet to the destination network node ID.

The disclosure describes examples where a first data center includes a first gateway router, a first set of computing devices, and a second set of computing devices. The first set of computing devices is configured to execute a software defined networking (SDN) controller cluster to facilitate operation of one or more virtual networks within the first data center. The second set of computing devices is configured to execute one or more control nodes to exchange route information, between the first gateway router and a second gateway router of a second data center different than the first data center, for a virtual network between computing devices within the second data center, and to communicate control information for the second data center to the second set of computing devices, wherein the one or more control nodes form a subcluster of the SDN controller cluster.

An apparatus includes a network interface and a processor. The network interface communicates with a network including switches interconnected in a Cartesian topology having multiple dimensions. The processor predefines turn types of turns in the Cartesian topology, each turn traverses first and second hops along first and second dimensions having same or different respective identities, and each turn type is defined at least by identities of the first and second dimensions. The processor searches for a preferred route from a source switch to a destination switch, by evaluating candidate routes based on the number of VLs required for preventing a deadlock condition caused by the candidate route. The number of VLs required depends on a sequential pattern of turn types formed by the candidate route. The processor configures one or more switches in the network to route packets from the source switch to the destination switch along the preferred route.

A method implemented by a network device for selection of a routing table in a Policy Based Routing (PBR) system is described. The method may include receiving a packet from a first network domain; generating a firewall mark for the packet, wherein the firewall mark includes a network domain indication and a packet classification indication; determining a match between the network domain indication of the packet and a selector of a matched rule in a set of rules; and upon determining the match between the network domain indication of the packet and the selector of the matched rule, inputting the firewall mark to a function of the matched rule to identify a routing table for the packet.

A LRE (logical routing element) that have LIFs that are active in all host machines spanned by the LRE as well as LIFs that are active in only a subset of those spanned host machines is provided. A host machine having an active LIF for a particular L2 segment would perform the L3 routing operations for network traffic related to that L2 segment. A host machine having an inactive LIF for the particular L2 segment would not perform L3 routing operations for the network traffic of the L2 segment.

Embodiments described herein provide methods and apparatus for transmitting traffic using a first communications technology and a second communications technology to a 5 communications network. The method comprises providing a first virtual link configured to receive first traffic from a first end device, wherein the first virtual link has a plurality of first link characteristics; providing a second virtual link configured to receive second traffic from the first end device, wherein the second virtual link has a plurality of second link characteristics; transmitting the first traffic to a communications network over a first 0 network link using the first communications technology; and transmitting the second traffic to the communications network over a second network link using the second communications technology.