An example method for discovering and grouping application endpoints in a network environment is provided and includes discovering endpoints communicating in a network environment, calculating affinity between the discovered endpoints, and grouping the endpoints into separate endpoint groups (EPGs) according to the calculated affinity, each EPG comprising a logical grouping of similar endpoints for applying common forwarding and policy logic according to logical application boundaries. In specific embodiments, the affinity includes a weighted average of network affinity, compute affinity and user specified affinity.

Discovering and grouping application endpoints in a network environment

Systems, methods, and computer-readable media for handling failure scenarios during data collection and analysis for assurance. In some examples, a system can obtain a logical model of a network and, based on the logical model, identify a plurality of controllers on the network and a plurality of nodes on a fabric of the network. The system can probe the plurality of controllers and plurality of nodes for respective status information, including respective reachability information, respective login diagnostics information, and/or respective software information. Based on the respective status information, the system can determine conditions at the plurality of controllers and the plurality of nodes and define one or more assurance operations based on the conditions at the plurality of controllers and the plurality of nodes. The system can then perform the one or more assurance operations.

Handling controller and node failure scenarios during data collection

Disclosed are systems, methods, and computer-readable media for assuring tenant forwarding in a network environment. Network assurance can be determined in layer 1, layer 2 and layer 3 of the networked environment including, internal-internal (e.g., inter-fabric) forwarding and internal-external (e.g., outside the fabric) forwarding in the networked environment. The network assurance can be performed using logical configurations, software configurations and/or hardware configurations

Validation of routing information base-forwarding information base equivalence in a network

Disclosed are systems, methods, and computer-readable media for assuring tenant forwarding in a network environment. Network assurance can be determined in layer 1, layer 2 and layer 3 of the networked environment including, internal-internal (e.g., inter-fabric) forwarding and internal-external (e.g., outside the fabric) forwarding in the networked environment. The network assurance can be performed using logical configurations, software configurations and/or hardware configurations.

Validation of layer 2 interface and VLAN in a networked environment

Network validation between the logical level and the hardware level of a network

Temporal matching based debugging methods are disclosed. In one embodiment, the method is implemented in a software-defined networking (SDN) controller coupled to a SDN system. The SDN system contains a set of network devices managed by the SDN controller, the method includes recording, at the SDN controller, messages between the SDN controller and a network device. The method further includes obtaining at the SDN controller from the network device, a set of statistics from the network device, where the set of statistics indicates characteristics of packet processing at the network device. The method further includes temporally matching the set of statistics obtained from the network device with the messages recorded, and identifying, among the messages recorded at the SDN controller, one or more messages occurred when the set of statistics indicates a packet processing anomaly in the network device.

Method and system for debugging in a software-defined networking (sdn) system

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Method and system for debugging in a software-defined networking (sdn) system