example where diameter node 108 independently tests the status of diameter node 104 after receiving the diameter network management information from diameter node 100 referring to fig3 diameter node 108 receives the diameter network management update message from diameter node 100 in response to receiving the diameter network management update message indicating that diameter node 104 is not available diameter node 108 may initiate a test to determine whether the received diameter network management information is accurate or valid for diameter node 108 in the illustrated example diameter node 108 sends a diameter network management test message to diameter node 104 if the test indicates that diameter node 104 is unavailable either in response to receiving a negative acknowledgement message or no response to the diameter network management test message diameter node 108 may update its local network management information database to reflect the unavailability of diameter node 104 if however the results of the test indicate that diameter node 104 is reachable from diameter node 108 diameter node 108 may refrain from updating its diameter network management cache to indicate that diameter node 104 is unreachable fig4 illustrates an example where the results of the confirmation test in fig3 indicate that diameter node 104 is available in fig4 it is the network 400 between diameter nodes 100 and 104 that causes diameter node 104 to be unavailable to diameter node 100 however.