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Skitter RTT Plots

Below is a plot of RTT versus time for the path from caida.mae.net to nms1.San-Francisco.t3.ans.net. This plot is for a particularly sour day; a configuration change made nms1.San-Francisco.t3.ans.net unreachable from caida.mae.net from around 06:30 to 09:45 UTC. When the reachability returned, we see a change in the forward path for a few hours, and eventually a return to the original forward path. However, there's an obvious step function in the RTT after the period of unreachability, indicating a change for the worse in the reverse path.

Below the plot are some order statistics for the RTT measurements for each path, then a table showing each of the forward paths.

RTT Statistics
Path # Min 25th Median 75th Max
1 16.09 18.619 20.725 76.727 362.173
2 17.998 80.437 82.486 83.695 90.456
3 85.434 85.434 85.434 85.434 85.434
4 79.784 81.807 82.831 84.313 90.575
path 1
1 bdr1-e010.sjc.mfs.net
2 atm0-0-0.br4.SJC.globalcenter.net
3 mae-west-3.ans.net
4 h14-1.t8-0.San-Francisco.t3.ans.net
dst nms1.San-Francisco.t3.ans.net
path 2
1 bdr1-e010.sjc.mfs.net
2 atm0-0-0.br4.SJC.globalcenter.net
3 fe2-1.cr1.SJC.globalcenter.net
4 v42.atm1-0.cr1.BUR.globalcenter.net
5 fe0-1.br1.BUR.globalcenter.net
6 Hssi10-1-0.GW1.LAX2.ALTER.NET
7 113.ATM2-0.XR1.LAX2.ALTER.NET
8 295.ATM3-0.TR1.LAX2.ALTER.NET
9 111.ATM7-0.TR1.SCL1.ALTER.NET
10 299.ATM6-0.XR1.SCL1.ALTER.NET
11 195.ATM11-0-0.BR1.SFO1.ALTER.NET
12 h14-1.t12-0.San-Jose.t3.ans.net
13 h14-1.t8-0.San-Francisco.t3.ans.net
dst nms1.San-Francisco.t3.ans.net
path 3
1 bdr1-e010.sjc.mfs.net
2 fddi0-0.br4.SJC.globalcenter.net
3 fe2-1.cr1.SJC.globalcenter.net
4 v42.atm1-0.cr1.BUR.globalcenter.net
5 fe0-0.br1.BUR.globalcenter.net
6 Hssi10-1-0.GW1.LAX2.ALTER.NET
7 113.ATM2-0.XR1.LAX2.ALTER.NET
8 295.ATM3-0.TR1.LAX2.ALTER.NET
9 111.ATM7-0.TR1.SCL1.ALTER.NET
10 299.ATM6-0.XR1.SCL1.ALTER.NET
11 195.ATM11-0-0.BR1.SFO1.ALTER.NET
12 h14-1.t12-0.San-Jose.t3.ans.net
13 h14-1.t8-0.San-Francisco.t3.ans.net
dst nms1.San-Francisco.t3.ans.net
path 4
1 bdr1-e010.sjc.mfs.net
2 atm0-0-0.br4.SJC.globalcenter.net
3 fe2-1.cr1.SJC.globalcenter.net
4 v42.atm1-0.cr1.BUR.globalcenter.net
5 fe0-0.br1.BUR.globalcenter.net
6 Hssi10-1-0.GW1.LAX2.ALTER.NET
7 113.ATM2-0.XR1.LAX2.ALTER.NET
8 295.ATM3-0.TR1.LAX2.ALTER.NET
9 111.ATM7-0.TR1.SCL1.ALTER.NET
10 299.ATM6-0.XR1.SCL1.ALTER.NET
11 195.ATM11-0-0.BR1.SFO1.ALTER.NET
12 h14-1.t12-0.San-Jose.t3.ans.net
13 h14-1.t8-0.San-Francisco.t3.ans.net
dst nms1.San-Francisco.t3.ans.net

Related Objects

See https://catalog.caida.org/details/software/skitter/ to explore related objects to this document in the CAIDA Resource Catalog.
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