$ tracepath berkeley.edu
 1:  10.74.40.220                                          0.210ms pmtu 1500
 1:  10.74.40.1                                            3.815ms 
 1:  10.74.40.1                                            5.275ms 
 2:  10.74.40.1                                            4.481ms pmtu 1350
 2:  192.168.20.254                                      192.922ms 
 2:  192.168.17.254                                      8447.357ms 
 3:  172.16.221.252                                      705.497ms 
 4:  70.42.157.253                                       376.237ms 
 5:  core1.te5-1-bbnet1.wdc002.pnap.net                  169.129ms 
 6:  no reply
 7:  te0-0-0-6.mpd22.iad02.atlas.cogentco.com            1618.564ms 
 7:  te0-1-0-6.mpd22.iad02.atlas.cogentco.com            1324.289ms 
 8:  te0-2-0-4.mpd22.dca01.atlas.cogentco.com            546.556ms 
 9:  te0-0-0-4.mpd22.ord01.atlas.cogentco.com            383.604ms 
10:  te0-0-0-3.mpd22.mci01.atlas.cogentco.com            1267.289ms 
10:  te0-4-0-5.mpd22.mci01.atlas.cogentco.com            5275.827ms 
11:  te0-2-0-6.mpd22.sfo01.atlas.cogentco.com            274.700ms 
12:  no reply
13:  calren-cenic.paix.net                               230.065ms asymm 11 
14:  dc-oak-core1--paix-px1-ge.cenic.net                 229.535ms asymm 12 
15:  dc-oak-agg1--oak-core1-10ge.cenic.net               282.296ms asymm 13 
16:  137.164.50.31                                       483.360ms asymm 15 
17:  t2-3.inr-202-reccev.Berkeley.EDU                    882.194ms asymm 15 
18:  t1-1.inr-211-srb.Berkeley.EDU                       242.607ms asymm 16 
18:  t1-1.inr-211-srb.berkeley.edu                       2486.617ms asymm 16 
19:  no reply
20:  no reply
21:  no reply
22:  no reply
23:  no reply
24:  no reply
25:  no reply
26:  no reply
27:  no reply
28:  no reply
29:  no reply
30:  no reply
31:  no reply
     Too many hops: pmtu 1350
     Resume: pmtu 1350