Interpretation

• The first graphs show normal routing 148.74.3.3, 148.71.255.3, 198.102.17.251, 148.71.21.25, 148.71.21.28

• Latency increases from 500ms to 1500 ms between nodes 198.102.17.251 and 148.71.21.25 and from sub 1ms to 9ms on between 148.71.255.3 and 198.102.17.251

• At 8:15PM CST (02:15 GMT) the usual path has completely vanished, as has the router at the customer location, 148.71.21.25. Nothing but gray lines for unreached lead to the customer node 148.71.21.28.

• The routing remains bad with no path to 148.71.21.25 for more than one hour.

• At about 9:15PM CST (03:15GMT) normal routing returns.

• A detailed report, which includes specific latencies and packet loss is sent to the carrier.