50 lines
1.6 KiB
Groff
50 lines
1.6 KiB
Groff
.TH ATMDUMP 8 "April 26, 2000" "Linux" "Maintenance Commands"
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.SH NAME
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atmdump \- capture or generate ATM cells
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.SH SYNOPSIS
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.B atmdump
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.RB [ \-i ]
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.RB [
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.B \-t\ \fItype\fB
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.RB [ \-g\ \fIgfc\fB ]
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.RB [ \-c ]
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.RB ]
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.RB [\fIitf\fP.]\fIvpi\fP.\fIvci\fP
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.ad b
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.SH DESCRIPTION
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.B atmdump
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captures or generates single ATM cells ("AAL0"). When capturing cells, a
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time stamp, the cell header contents, and a hex dump of the cell payload
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are shown. When sending cells, the payload type, the generic flow control
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(GFC), and the cell loss priority (CLP) can be set.
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.P
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In both modes of operation, the interface number, the VPI, and the VCI
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have to be specified.
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.P
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When sending, \fBatmdump\fP expects the cell payload on standard input.
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If only less than 48 bytes can be read, the remaining space is padded
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with zero bytes.
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.SH OPTIONS
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.IP \fB\-i\fP
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displays timestamps as the interval since the last cell reception. By
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default, the absolute time is displayed. This options is ignored in
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transmit mode.
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.IP \fB\-t\ \fItype\fP
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selects transmit mode and specifies the payload type. A list of valid
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payload type numbers can be obtained by invoking
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.B atmdump
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without any arguments.
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.IP \fB\-g\ \fIgfc\fP
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specifies the value of the GFC field. \fIgfc\fP has to be in the range from
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0 to 15, default is zero.
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.IP \fB\-c\fP
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sets the cell loss priority flag, indicating low priority. By default, CLP
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is not set.
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.SH RESTRICTIONS
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Some device drivers may not pass OAM cells transparently.
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.SH AUTHOR
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Werner Almesberger, EPFL ICA <Werner.Almesberger@epfl.ch>
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.SH "SEE ALSO"
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atmdiag(8), clip(8), sonetdiag(8)
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.\"{{{}}}
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