Abstract: Methods, systems, and computer-readable storage mediums for policy-based testing of computer networks may involve identifying a set of network nodes within a network, and iteratively filtering the set of network nodes in accordance with a testing policy comprising at least one policy rule. Iteratively filtering may include, in an initial iteration, filtering out network nodes that are endpoints of the network from the set of network nodes. Iteratively filtering may further include, for each subsequent iteration, determining a filter criteria from one or more of the policy rules, and filtering out network nodes from the set of network nodes produced by the immediately previous iteration based on the filter criteria. The policy-based testing further comprises invoking a network test scheme that is compliant with the testing policy and is limited to execution against the set of network nodes produced by the iterative filtering.

Abstract: Methods, systems, and computer-readable storage mediums for policy-based testing of computer networks may involve identifying a set of network nodes within a network, and iteratively filtering the set of network nodes in accordance with a testing policy comprising at least one policy rule. Iteratively filtering may include, in an initial iteration, filtering out network nodes that are endpoints of the network from the set of network nodes. Iteratively filtering may further include, for each subsequent iteration, determining a filter criteria from one or more of the policy rules, and filtering out network nodes from the set of network nodes produced by the immediately previous iteration based on the filter criteria. The policy-based testing further comprises invoking a network test scheme that is compliant with the testing policy and is limited to execution against the set of network nodes produced by the iterative filtering.

Abstract: According to one aspect of the present disclosure, a computer-implemented method is disclosed, in which a determination is made for each of a plurality of network interfaces of whether an amount of traffic on the network interface exceeds a predefined traffic threshold. Each of the network interfaces whose amount of traffic is below the traffic threshold is excluded from Quality of Service (QoS) polling. For each of the non-excluded network interfaces whose traffic exceeds the traffic threshold, a determination is made of a set of traffic classes transported on the network interface, and any of the traffic classes with a priority level below a cutoff threshold are excluded from QoS polling. For each non-excluded traffic class that has a priority level above the cutoff threshold, a determination is made of a per-class QoS polling rate based on the respective priority level of the traffic class.