Patent ID: 8443239

Claim:
A method, comprising: simulating, by a computer device, load demands within a test environment including a subnetwork level that includes a plurality of customer networks coupled to a main network level, where simulating the load demands include establishing a plurality of Emulated Local Area Networks (ELANs) coupled, respectively, with a plurality of LAN Emulation clients, each of the plurality of ELANs being associated with an address; transmitting, by the computer device and from a first location within the test environment, a test signal, where the test signal is received, after a time delay, at a second location within the test environment; introducing, by the computer device, fault conditions into the test environment, the introduced fault conditions occurring one at a time, where an occurring fault condition, of the fault conditions, is corrected before a next fault condition, of the fault conditions, is introduced into the test environment; measuring, by the computer device, a first change to the time delay, the first change occurring in response to introducing the occurring fault condition into the test environment; and measuring, by the computer device, a second effect on the time delay, the second effect occurring after correcting the occurring fault condition before introducing the next fault condition.