xref: /netbsd-src/external/cddl/dtracetoolkit/dist/Docs/Examples/udpstat_example.txt (revision c29d51755812ace2e87aeefdb06cb2b4dac7087a)
1The following is an example of the udpstat.d script,
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3
4
5Here we run udpstat for a few seconds. Firstly, we run a "spray" command
6outbound, followed by a spray inbound. Both can be identified in the
7output below,
8
9   # udpstat.d
10       UDP_out  UDP_outErr      UDP_in   UDP_inErr  UDP_noPort
11             0           0           0           0           1
12             0           0           0           0           2
13             0           0           0           0           0
14          1165           0           2           0           0
15             0           0           0           0           0
16             0           0           0           0           2
17             3           0        1166           0           1
18             0           0           0           0           0
19             0           0           0           0           0
20             0           0           0           0           0
21   ^C
22
23
24
25Here we run udpstat.d while an outbound DNS lookup is performed using
26"nslookup",
27
28   # udpstat.d
29       UDP_out  UDP_outErr      UDP_in   UDP_inErr  UDP_noPort
30             0           0           0           0           1
31             0           0           0           0           1
32             1           0           1           0           0
33             0           0           0           0           0
34             0           0           0           0           3
35   ^C
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37Little output is observed as this tracks datagrams not bytes. There is
38one outbound and one inbound datagram.
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40