traceroute for example
----------------------
traceroute results
The name (if available) and IP address of each gateway (router) is displayed, along with the
round trip time (in milliseconds) for each of three trace packets to reach the specified
gateway and return. These intervals may vary widely as a function of network load. Lost
packets are indicated by an asterisk (*). There are several factors responsible for lost
packets: Some gateways don't return the appropriate message requested by traceroute. Some
firewalls use packet filters which block packets used by traceroute. (If you are behind a
firewall that blocks traceroute, the results show the route to your firewall, followed by
a line of asterisks.) Finally, packets may be lost as a result of network congestion (heavy
load). World Wide Web clients and servers normally recover automatically when a small
percentage of packets are lost with no indication to the user except for slower response
time.
[root@raider data]# traceroute crawl-66-249-71-78.googlebot.com
traceroute to crawl-66-249-71-78.googlebot.com (66.249.71.78), 30 hops max, 46 byte packets
1 ipcop (192.168.1.1) 0.667 ms 0.352 ms 0.367 ms
2 rtr-102600.unimacq.edu.au (137.111.20.129) 1.281 ms 1.005 ms 1.045 ms
3 rtr2-4.unimacq.edu.au (137.111.5.219) 1.459 ms 1.080 ms 1.342 ms
4 gigabitethernet1.er1.unimacq.cpe.aarnet.net.au (202.158.200.249) 1.617 ms 1.150 ms 1.606 ms
5 ge-1-0-5.bb1.a.mel.aarnet.net.au (202.158.200.241) 1.435 ms 1.910 ms 1.602 ms
6 so-0-1-0.bb1.b.syd.aarnet.net.au (202.158.194.34) 13.299 ms 13.561 ms 13.599 ms
7 so-1-0-0.bb1.a.lax.aarnet.net.au (202.158.194.154) 168.229 ms 168.082 ms 168.470 ms
8 sl-gw28-ana-10-1.sprintlink.net (144.223.30.25) 168.745 ms 168.623 ms 168.564 ms
9 sl-bb24-ana-5-0.sprintlink.net (144.232.1.49) 169.468 ms 169.211 ms 169.038 ms
10 sl-bb20-ana-11-0.sprintlink.net (144.232.1.137) 168.670 ms 168.706 ms 168.585 ms
11 sl-bb24-sj-10-0.sprintlink.net (144.232.20.101) 180.025 ms 180.602 ms 179.441 ms
12 sl-bb23-sj-14-0.sprintlink.net (144.232.3.221) 179.279 ms 179.949 ms 178.748 ms
13 sl-gw19-sj-15-0.sprintlink.net (144.232.0.250) 179.897 ms 179.579 ms 179.532 ms
14 sl-abovenet-18-0-0.sprintlink.net (144.228.44.146) 179.827 ms 180.343 ms 179.760 ms
15 so-4-3-0.mpr4.sjc2.us.above.net (64.125.30.85) 180.234 ms 180.358 ms 179.829 ms
MPLS Label=100064 CoS=0 TTL=0 S=1
16 so-4-0-0.mpr4.pao1.us.above.net (64.125.29.162) 180.110 ms 179.816 ms 179.766 ms
17 64.124.76.162.available (64.124.76.162) 175.811 ms 176.012 ms 175.706 ms
18 216.239.48.173 (216.239.48.173) 175.688 ms 177.563 ms 175.889 ms
MPLS Label=577251 CoS=0 TTL=0 S=1
19 66.249.94.10 (66.249.94.10) 176.614 ms 66.249.94.8 (66.249.94.8) 176.413 ms 176.210 ms
MPLS Label=572597 CoS=0 TTL=0 S=1
20 216.239.47.192 (216.239.47.192) 176.815 ms 177.091 ms 216.239.48.246 (216.239.48.246) 176.407 ms
21 216.239.48.170 (216.239.48.170) 178.541 ms 216.239.48.38 (216.239.48.38) 178.150 ms 216.239.48.74 (216.239.48.74) 177.389 ms
22 crawl-66-249-71-78.googlebot.com (66.249.71.78) 176.547 ms 176.333 ms 66.249.95.140 (66.249.95.140) 176.544 ms
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