atmdump - capture or generate ATM cells
] [ -t type
] ] [
captures or generates single ATM cells ("AAL0"). When
capturing cells, a time stamp, the cell header contents, and a hex dump of the
cell payload are shown. When sending cells, the payload type, the generic flow
control (GFC), and the cell loss priority (CLP) can be set.
In both modes of operation, the interface number, the VPI, and the VCI have to
When sending, atmdump
expects the cell payload on standard input. If only
less than 48 bytes can be read, the remaining space is padded with zero bytes.
- displays timestamps as the interval since the last cell
reception. By default, the absolute time is displayed. This options is
ignored in transmit mode.
- -t type
- selects transmit mode and specifies the payload type. A
list of valid payload type numbers can be obtained by invoking
atmdump without any arguments.
- -g gfc
- specifies the value of the GFC field. gfc has to be
in the range from 0 to 15, default is zero.
- sets the cell loss priority flag, indicating low priority.
By default, CLP is not set.
Some device drivers may not pass OAM cells transparently.
Werner Almesberger, EPFL ICA <Werner.Almesberger@epfl.ch>
atmdiag(8), clip(8), sonetdiag(8)