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Table 2 (Source: skitter-f.isc.org (204.152.184.98) - 8 october 1999)

Preliminary analysis of the data gathered by the CAIDA skitter host located with the F DNS root server in Palo Alto, CA, USA. Skitter probes were sent to a target list of approximately 36,000 customers of the F root server. Probes are sent about every half hour; each returns the round trip time to the destination and the path that the packets took to reach it.

Table 2: identification of ASes dominating the paths

Table 2 lists the most prevalent AS number at each hop with the most popular ASes colored according to the key above the table. The number in parentheses is the proportion of paths at that hop that belong to the listed AS. Rows of the table that seem to contain routing inefficiencies, for example, going from one AS to a second and then back to the first, are probably not routing mistakes. The data we display is aggregated, so the AS listed is the most prevalent one at that hop for a particular path length, but not the only AS present in the data.

frequency in table ASs
118 701(ALTERNET-AS)
53 3557(VIX)
29 4713(OCN) 1(BBNPLANET)
24 3211()
17 1267(IUNET-AS)
15 4732(DDI)
14 1849(PIPEX-AS)
13 3561(CWUSA)
9 2516(JNIC-ASN)
8 2914(VERIO) 702(ALTERNET-AS)
6 6461(ABOVENET)
5 3303() 5551(CORINET) 5673(PBI-NET-BLK)
4 1239(SprintLink) 6774(BELGACOM)
2 286(EUNET-AS) 11388(MAXIM) 6747(LATTELEKOM) 517(XLINK-UKA)
1 1309(FRANCE-ASNBLOCK-AS) 3915(BEST) 6939(HURRICANE)
total path's length num of paths found hop 1 hop 2 hop 3 hop 4 hop 5 hop 6 hop 7 hop 8 hop 9 hop 10 hop 11 hop 12 hop 13 hop 14 hop 15 hop 16 hop 17 hop 18 hop 19 hop 20 hop 21 hop 22 hop 23 hop 24 hop 25 hop 26 hop 27
2 3 3557(1.00) 3557(1.00)
3 2 3557(1.00) 3557(0.50) 3557(0.50)
4 16 3557(1.00) 3557(0.88) 1239(0.56) 6939(0.31)
5 60 3557(1.00) 3557(0.88) 1239(0.50) 11388(0.18) 11388(0.18)
6 369 3557(1.00) 3557(1.00) 1239(0.61) 5673(0.30) 5673(0.30) 5673(0.26)
7 411 3557(1.00) 3557(1.00) 1239(0.40) 6461(0.13) 6461(0.12) 5673(0.11) 5673(0.10)
8 772 3557(1.00) 3557(1.00) 701(0.41) 6461(0.22) 6461(0.20) 701(0.15) 701(0.13) 3915(0.09)
9 1134 3557(1.00) 3557(1.00) 701(0.39) 6461(0.37) 6461(0.34) 701(0.15) 701(0.12) 2914(0.06) 2914(0.07)
10 2967 3557(1.00) 3557(1.00) 701(0.63) 701(0.53) 701(0.52) 701(0.51) 701(0.46) 701(0.43) 701(0.42) 701(0.24)
11 3859 3557(1.00) 3557(1.00) 701(0.58) 701(0.53) 701(0.48) 701(0.47) 701(0.30) 701(0.27) 701(0.26) 3561(0.07) 3561(0.06)
12 4940 3557(1.00) 3557(1.00) 701(0.64) 701(0.62) 701(0.60) 701(0.58) 701(0.32) 701(0.29) 701(0.29) 3561(0.09) 3561(0.08) 3561(0.07)
13 3922 3557(1.00) 3557(1.00) 701(0.61) 701(0.61) 701(0.58) 701(0.55) 701(0.35) 701(0.32) 701(0.31) 3561(0.07) 3561(0.06) 3561(0.04) 3561(0.04)
14 3850 3557(1.00) 3557(1.00) 701(0.60) 701(0.62) 701(0.59) 701(0.57) 701(0.36) 701(0.33) 701(0.32) 3561(0.08) 3561(0.08) 4713(0.05) 4713(0.05) 4713(0.05)
15 2774 3557(1.00) 3557(1.00) 701(0.59) 701(0.58) 701(0.58) 701(0.56) 701(0.37) 701(0.33) 701(0.33) 4713(0.07) 4713(0.07) 4713(0.08) 4713(0.08) 4713(0.08) 4713(0.08)
16 2190 3557(1.00) 3557(1.00) 701(0.62) 701(0.60) 701(0.59) 701(0.58) 701(0.41) 701(0.36) 701(0.36) 4713(0.10) 4713(0.10) 4713(0.11) 4713(0.11) 4713(0.11) 4713(0.11) 4713(0.11)
17 1544 3557(1.00) 3557(1.00) 701(0.69) 701(0.67) 701(0.67) 701(0.66) 701(0.42) 701(0.35) 701(0.35) 702(0.08) 702(0.08) 4713(0.08) 4713(0.08) 4713(0.08) 4713(0.08) 4713(0.08) 4713(0.08)
18 1224 3557(1.00) 3557(1.00) 701(0.70) 701(0.67) 701(0.67) 701(0.67) 701(0.38) 701(0.33) 701(0.33) 3561(0.10) 3561(0.10) 4713(0.10) 4713(0.10) 4713(0.09) 4713(0.10) 4713(0.10) 4713(0.10) 4713(0.10)
19 691 3557(1.00) 3557(1.00) 701(0.69) 701(0.67) 701(0.68) 701(0.68) 701(0.40) 701(0.36) 701(0.35) 702(0.10) 702(0.10) 702(0.09) 2516(0.09) 1(0.07) 1849(0.06) 1849(0.06) 1849(0.06) 1849(0.06) 1849(0.06)
20 436 3557(1.00) 3557(1.00) 701(0.67) 701(0.66) 701(0.66) 701(0.65) 701(0.40) 701(0.36) 701(0.36) 2516(0.16) 2516(0.16) 2516(0.16) 2516(0.16) 4732(0.15) 4732(0.15) 4732(0.15) 4732(0.15) 4732(0.14) 4732(0.12) 4732(0.12)
21 244 3557(1.00) 3557(1.00) 701(0.68) 701(0.67) 701(0.66) 701(0.67) 701(0.39) 701(0.36) 701(0.36) 2516(0.15) 2516(0.15) 2516(0.14) 2516(0.14) 4732(0.12) 4732(0.12) 4732(0.12) 4732(0.12) 4732(0.12) 4732(0.12) 4732(0.11) 4732(0.11)
22 95 3557(1.00) 3557(0.99) 701(0.66) 701(0.64) 701(0.60) 701(0.61) 701(0.26) 701(0.24) 701(0.23) 1(0.19) 1(0.19) 1(0.19) 1(0.19) 1(0.17) 3303(0.13) 3303(0.13) 3303(0.13) 3303(0.13) 3303(0.12) 517(0.09) 517(0.09) 1309(0.09)
23 45 3557(1.00) 3557(1.00) 701(0.60) 701(0.64) 701(0.58) 701(0.58) 2914(0.27) 701(0.24) 701(0.24) 702(0.16) 702(0.16) 702(0.16) 286(0.13) 286(0.13) 1849(0.13) 1849(0.13) 1849(0.13) 1849(0.13) 1849(0.13) 1849(0.13) 1849(0.13) 1849(0.13) 1849(0.13)
24 15 3557(1.00) 3557(1.00) 701(0.67) 701(0.67) 701(0.67) 701(0.67) 1(0.47) 1(0.47) 1(0.47) 1(0.47) 1(0.47) 1(0.47) 1(0.47) 3211(0.33) 3211(0.33) 3211(0.33) 3211(0.33) 3211(0.33) 3211(0.33) 3211(0.33) 3211(0.33) 1267(0.33) 1267(0.33) 1267(0.33)
25 18 3557(1.00) 3557(1.00) 701(0.78) 701(0.78) 701(0.78) 701(0.78) 1(0.78) 1(0.78) 1(0.78) 1(0.78) 1(0.78) 1(0.78) 1(0.78) 3211(0.78) 3211(0.78) 3211(0.78) 3211(0.78) 3211(0.78) 3211(0.78) 3211(0.78) 3211(0.78) 1267(0.78) 1267(0.78) 1267(0.78) 1267(0.78)
26 6 3557(1.00) 3557(1.00) 701(0.83) 701(0.83) 701(0.83) 701(0.83) 1(0.67) 1(0.67) 1(0.67) 1(0.67) 1(0.67) 1(0.67) 1(0.67) 3211(0.50) 3211(0.50) 3211(0.50) 3211(0.50) 3211(0.50) 3211(0.50) 3211(0.50) 3211(0.50) 1267(0.50) 1267(0.50) 1267(0.50) 1267(0.50) 1267(0.50)
27 3 3557(1.00) 3557(1.00) 2914(0.33) 701(0.33) 2914(0.33) 701(0.33) 2914(0.33) 2914(0.33) 2914(0.33) 1(0.33) 1(0.33) 6774(0.33) 6774(0.33) 6774(0.33) 6774(0.33) 5551(0.33) 5551(0.33) 5551(0.33) 5551(0.33) 5551(0.33) 6747(0.33) 6747(0.33) 1267(0.33) 1267(0.33) 1267(0.33) 1267(0.33) 1267(0.33)
Table 2: identification of ASes dominating the paths

The table is constrained because paths are sorted by path length (number of hops in the path). The next two images relax this constraint, but try to capture this same information.

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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