Abstract: Methods, systems, and computer readable media for network diagnostics are disclosed. According to one method, the method occurs at a diagnostics controller implemented using at least one processor. The method includes configuring a plurality of diagnostics nodes to observe traffic behavior associated with a system under test (SUT). The method also includes observing, using the diagnostics nodes, traffic behavior associated with the SUT. The method further includes detecting, using the traffic behavior, a SUT issue. The method also includes identifying, using SUT topology information, a network node in the SUT associated with the SUT issue. The method further includes triggering one of the diagnostics nodes to obtain node related information from the network node, wherein the diagnostics node uses at least one communications protocol to poll the network node for the node related information. The method also includes diagnosing, using the node related information, the SUT issue.