ZyXEL Communications P-2812HNU-51c User Manual page 328

Appendix A Network Troubleshooting
The following examples show the typical output of this command:
C:\>tracert www.example.com
Tracing route to www.example.com [192.0.32.10]
over a maximum of 30 hops:
1 <1 ms
2
3
4
5
6
7 10 ms
8
9
10 138 ms
11 138 ms
12 128 ms
13 140 ms
14 154 ms
15 154 ms
16 562 ms
17 554 ms
18 254 ms
19 154 ms
Trace complete.
C:\>
Here, the tracert to www.example.com took 18 hops to reach its destination.
Looking at the latency data, you'll see the first slow down happens at hop 10.
The extremely low latency on the first few hops indicates a network local to the
computer where the tracert command originated, such as a home or office LAN.
The packets then move onto the local WAN (such as your Internet Service
Provider's network). Because of the close proximity of those servers to your
computer, the latency remains low.
Once the data packets move out of the regional network to the first international
server (at hop 10 in this example), the latency increases. This is because of the
distance between the regional and international servers - it physically takes longer
for the response to get back to your computer.
Finally, on transition hop 15 from the server in Japan to the server in California,
another latency spike occurs. If you were having connection problems, this would
most likely be the source of it. For whatever reason, the server in Japan has a less
than optimal connection with its counterpart in the United States.
328
<1 ms <1 ms
5 ms 4 ms 5 ms
4 ms 4 ms 4 ms
5 ms 4 ms 6 ms
6 ms 5 ms 4 ms
5 ms 4 ms 4 ms
7 ms 10 ms
9 ms 7 ms 8 ms
6 ms 6 ms 9 ms
137 ms 138 ms
138 ms 138 ms
139 ms 140 ms
139 ms 136 ms
153 ms 137 ms
154 ms 137 ms
553 ms 553 ms
554 ms 553 ms
254 ms 248 ms
253 ms 154 ms
172.23.x.x
172.23.x.x
172.23.x.x
219-87-158-97.static.tfn.tw [219.87.158.97]
10.42.232.150
hc-c12r2.router.tw [220.128.7.86]
tp-s2-c12r12.router.tw [220.128.2.90]
pr03-s2.tp.tw [220.128.4.181]
220-128-3-249.NET-IP.tw [220.128.3.249]
r11-pa.NET-IP.net [211.72.108.129]
po4-0.core01.sjc04.atlas.com [154.54.11.129]
te9-2.mpd01.sjc04.atlas.com [154.54.0.173]
61.58.33.173
xe-0-0-0.r20.gin.ntt.net [129.250.16.161]
as-2.r21.tokyjp01.jp.ntt.net [129.250.4.81]
38.106.6.34
po-2.r00.lsanca19.us.ntt.net [129.250.6.42]
204.1.254.150
192.0.32.10
P-2812HNU-51c User's Guide