Traceroute experiment

Giving the following command from home:

traceroute www.cas.mcmcaster.ca

yields this output:

traceroute to wwwmac.cis.mcmaster.ca (130.113.64.65), 64 hops max, 52 byte packets
 1 vlan1.phub.net.cable.rogers.com (192.168.0.1) 0.864 ms 0.645 ms 0.971 ms
 2 7.11.162.245 (7.11.162.245) 9.885 ms 9.571 ms 15.516 ms
 3 24.156.137.81 (24.156.137.81) 12.221 ms 11.316 ms 12.042 ms
 4 69.63.248.181 (69.63.248.181) 13.643 ms 11.480 ms 19.948 ms
 5 69.63.250.93 (69.63.250.93) 9.883 ms 12.042 ms 9.749 ms
 6 gw-orano.torontointernetxchange.net (206.108.34.40) 10.289 ms 14.250 ms 13.036 ms
 7 be201.p01-toro.orion.on.ca (66.97.16.21) 13.250 ms 11.585 ms 11.657 ms
 8 be125.pe01-hmtn.orion.on.ca (66.97.16.142) 13.121 ms 11.883 ms 14.027 ms
 9 mcmaster-orion-rne.dist1-hmtn.ip.orion.on.ca (66.97.23.22) 12.736 ms 10.662 ms 14.350 ms
...

Note in particular the node corresponding to the Toronto Internet Exchange (TorIX):

6 gw-orano.torontointernetxchange.net (206.108.34.40)

More information can be found here: www.torix.ca where it can be seen that on November 25, 2013, TorIX broke the 141 Gbps mark (that is, 141 × 109 bits per second!) and check 0132856204www.torix.ca/news.php to see the different peer connections established at TorIX  – read top of page 34 in Kurose & Ross Computer Networking: a pair of nearby ISPs at the same lavel of the hierarchy can peer, that is, they can directly connect their networks together so that all the traffic between them passes over the direct connection rather than through upstream intermediaries.

Also note that nodes 7, 8, and 9 correspond to the Orion network:

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