Archipelago (Ark): CAIDA's active measurement infrastructure serving the network research community since 2007.

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mel-au

University of Melbourne

Melbourne, AU (5)

Time range	2018-08-26 23:04 to 2018-08-28 00:53 UTC (1 day 2 hours) (981 days ago)
Total traces	190371
Traces with responding destinations	24060 (12.638%)
ASes with responding destinations	2595 (21.902% out of 11848)
Prefixes with responding destinations	11140 (18.559% out of 60025)
Protocol version	v4

Generated for cycle 6938 on 2018-08-29 17:26 UTC

All images can be clicked on for more detailed information.

Median RTT per country and US state

Mapping RTT by political boundaries can reveal where high latency issues are located.

• Median RTT per country and US state
  

Path Dispersion

The paths taken by different traces show where the majority of a monitor's traffic travels.

• AS Path Dispersion (by AS Hop)
  
  AS connectivity near monitor
  
• AS Path Dispersion (by IP Hop)
  
  AS connectivity near monitor (with IP hop distances preserved)
  
• IP Path Dispersion (by IP Hop)
  
  IP connectivity near monitor
  

Path Length Distributions

Path length distributions show, on aggregate, how well-connected a monitor is to the rest of the Internet.

• CCDF of IP path lengths for responding destinations

  percentile	10th	25th	50th	75th	90th	Max
  IP path length	18	20	22	25	27	43

  
• CCDF of AS path lengths for responding destinations

  percentile	10th	25th	50th	75th	90th	Max
  AS path length	5	5	6	7	7	16

  
• CCDF of IP path lengths for non-responding destinations

  percentile	10th	25th	50th	75th	90th	Max
  IP path length	14	16	19	22	25	49

  
• CCDF of AS path lengths for non-responding destinations

  percentile	10th	25th	50th	75th	90th	Max
  AS path length	4	5	5	6	7	12

  

RTT Distribution

An RTT distribution shows the general latency between a monitor and the rest of the Internet.

• CCDF of destination RTTs

  percentile	10th	25th	50th	75th	90th
  RTT (ms)	198.454	239.341	303.537	346.188	386.660

  
• RTT quartiles vs hop distance
  

RTTs vs. Distance

Comparing RTT with geographical distance helps show if latency is primarily due to distance or other factors.

• RTT density versus geographical distance
  
• RTT quartiles versus geographical distance