1. A system comprising:a network switching device comprising:
network communication interfaces configured to send data units to other network devices via one or more communications networks;
one or more packet processors configured to process the data units prior to sending the data units;
one or more traffic managers configured to control flow of the data units to the one or more packet processors;
a data collector configured to send state information out an analyzer interface, the state information describing operational states of the one or more packet processors and/or the one or more traffic managers;
device control logic configured to adjust device settings of the network switching device in response to control instructions;
an analyzer device coupled to the analyzer interface and configured to receive the state information, the analyzer device comprising analysis logic configured to, based on the state information received from the collector, generate first control instructions identifying first device settings of the network switching device to change, and to send the first control instructions to the network switching device via the analyzer interface.