Events: MTP Layer 1

	Event Structure	What is a BOP-SS7 event ?...
	MTP-L1 decoding	by using Clarinet Event-Editor with a filter ...
	Protocol stack	Which protocol specifications to be defined in the current filter ?...
	Standards	Q703
	Options	Changing the display conditions in the current filter ?...

Clarinet Event-Editor: MTP-L1 decoding

	Event information	Date	Date of the event (end of MTP-1 frame) in the format: hh:mm:ss/xxx.y
		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
		Dx	The decoding level as specified in the filter (protocol stack).
	Protocol fields	MTP-1	<MTP-L1 type> <frame counter> <flag counter>    [nnnn]
	Data field	Field of the conveyed data, displayed if no upper layer of protocol has to be decoded. The display format specified in the filter is used.

MTP-L1 Protocol fields

	<MTP-L1_type>	Frame: Valid frame with correct CRC calculation result. Beginning of Idle state (1 permanent). End of Idle state (1 permanent). Abort frame. Crc error: Frame with false CRC calculation result.
	<frame_counter>	Number of frames associated with the previous event on the same direction.
	<flag_counter>	If normal frame, the number of flags from the previous MTP-1 event on the same direction.
	[nnnn]	If normal frame, the number of octets of the information field. The length does not include the 2-octet CRC.

Protocol stack applied

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updated:  27-Feb-04