This is roughly how I understand it (relating it to the OSI network model): hub = OSI layer 1 (physical) switch = OSI layer 2 (data link); but layer 3 switche

This is roughly how I understand it (relating it to the OSI network model): hub = OSI layer 1 (physical) switch = OSI layer 2 (data link); but layer 3 switches exist router = OSI layer 3 (network) More details for each here: http://web4.uwindsor.ca/units/its/insight/insight.nsf/e273c4953677f35c852567d700713e04/01c912740433787285256c25006c137c!OpenDocument http://web4.uwindsor.ca/units/its/insight/insight.nsf/e273c4...