CQM Graphs: Difference between revisions

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 [[File:CQM-netgearswitch.png]]
-Not an ADSL Fault. This latency and loss was caused by a fault Netgear switch on the LAN side of a Vigor router! It's unknown what was exactly causing this, but perhaps the switch was faulty enough to upset the Vigor causing it to delaying or not replying to the LCP echos. In this case unplugging the LAN side of the router would show a normal looking graph, indicating the fault is somehow caused by something on the LAN.
+Not an ADSL Fault. This latency and loss was caused by a fault Netgear switch on the LAN side of a Vigor router! The switch had failed to the point where it wouldn't talk gigabit but would talk 100M unreliably. Guess it was maxing router CPU perhaps. It's unknown how this affected the Vigor, but perhaps the switch was faulty enough to upset the Vigor causing it to delaying or not replying to the LCP echos. In this case unplugging the LAN side of the router would show a normal looking graph, indicating the fault is somehow caused by something on the LAN.
 ==Other Examples==