1ATMDUMP(8)                   Maintenance Commands                   ATMDUMP(8)
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NAME

6       atmdump - capture or generate ATM cells
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SYNOPSIS

9       atmdump [-i] [ -t type [-g gfc] [-c] ] [itf.]vpi.vci
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DESCRIPTION

12       atmdump captures or generates single ATM cells ("AAL0"). When capturing
13       cells, a time stamp, the cell header contents, and a hex  dump  of  the
14       cell  payload  are  shown.  When  sending  cells, the payload type, the
15       generic flow control (GFC), and the cell loss  priority  (CLP)  can  be
16       set.
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18       In  both modes of operation, the interface number, the VPI, and the VCI
19       have to be specified.
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21       When sending, atmdump expects the cell payload on standard  input.   If
22       only less than 48 bytes can be read, the remaining space is padded with
23       zero bytes.
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OPTIONS

26       -i     displays timestamps as the interval since the last  cell  recep‐
27              tion.  By  default, the absolute time is displayed. This options
28              is ignored in transmit mode.
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30       -t type
31              selects transmit mode and specifies the payload type. A list  of
32              valid  payload  type numbers can be obtained by invoking atmdump
33              without any arguments.
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35       -g gfc specifies the value of the GFC field. gfc has to be in the range
36              from 0 to 15, default is zero.
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38       -c     sets  the  cell  loss priority flag, indicating low priority. By
39              default, CLP is not set.
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RESTRICTIONS

42       Some device drivers may not pass OAM cells transparently.
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AUTHOR

45       Werner Almesberger, EPFL ICA <Werner.Almesberger@epfl.ch>
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SEE ALSO

48       atmdiag(8), clip(8), sonetdiag(8)
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52Linux                           April 26, 2000                      ATMDUMP(8)