Events: ATM Layer 1

	Event Structure	What is an ATM event ?...
	ATM-L1 decoding	by using Clarinet Event-Editor with a filter ...
	Protocol stack	Which protocol specifications to be defined in the current filter ?...
	Standards
	Options	Changing the display conditions in the current filter ?...

Clarinet Event-Editor: ATM-L1 decoding

	Event information	Date	Date of the event (end of cell or PDU) in the format: hh:mm:ss/xxx.yyy.z
		N	The interface number which identifies the Clarinet-interface connected to the host.
		Link type	TS: Signalling Link  Transmit direction RS: Signalling Link Receive direction TD: Data Link Transmit direction RD: Data Link Receive direction
		D1	The decoding level as specified in the filter (protocol stack).
	Protocol fields	ATM	<AAL type> Ctrl <ATM type>    [nnnn] CELL_fields CPCS_fields
	Data field	Field of the conveyed data, displayed if no upper layer of protocol has to be decoded. The display mode can be Hexa, Ascii or Ebcdic as specified in the filter.

ATM Protocol fields

	<AAL type>	5. 1. 3/4.
	Ctrl	Control field in the format (xxxx,yyyy) :
	xxxx	decimal value of VPI within the cell header.
	yyyyy	decimal value of VCI within the cell header.
	<ATM_type>	CELL. CPCS-PDU.
	[nnnn]	The number of octets included in the Cell or CPCS-PDU.
	CELL_fields	in the format PT:x CLP:xxx GFC:xxx :
	PT:x	value of the Payload Type within the cell header.
	CLP:x	value of the Cell Loss Priority within the cell header (0 or 1).
	GFC:x	value of GFC within the cell header.
	CPCS_fields	in the format UU:xx CPI:xx Len=xxxxx for AAL5:
	UU:xx
	CPI:xx
	Len:xxxxx	For a CPCS-PDU, length of the data field.

Protocol stack applied

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updated:  27-Feb-04