cddl/contrib/dtracetoolkit/Examples/udpstat_example.txt

   1 The following is an example of the udpstat.d script,
   2
   3
   4
   5 Here we run udpstat for a few seconds. Firstly, we run a "spray" command
   6 outbound, followed by a spray inbound. Both can be identified in the
   7 output 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
  25 Here 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
  36
  37 Little output is observed as this tracks datagrams not bytes. There is
  38 one outbound and one inbound datagram.
  39