Wireshark · Display Filter Reference: Licklider Transmission Protocol

Field name	Description	Type	Versions
ltp.block.bundle_cnt	Bundles within the block	Unsigned integer (64 bits)	4.2.0 to 4.4.2
ltp.block.bundle_size	Bundle size	Unsigned integer (64 bits)	4.2.0 to 4.4.2
ltp.block.green_size	Green part size	Unsigned integer (64 bits)	4.2.0 to 4.4.2
ltp.block.red_size	Red part size	Unsigned integer (64 bits)	4.2.0 to 4.4.2
ltp.cancel.ack.ref	Acknowledgement segment in frame	Frame number	4.4.0 to 4.4.2
ltp.cancel.ack.time	Time to cancel ack	Time offset	4.4.0 to 4.4.2
ltp.cancel.code	Cancel code	Unsigned integer (8 bits)	1.4.0 to 4.4.2
ltp.cancel.dupe.ref	Same session cancel in frame	Frame number	4.4.0 to 4.4.2
ltp.cancel_ack	Cancel Ack	Label	2.2.0 to 4.4.2
ltp.cancel_ack.cancel.ref	Response to cancel segment in frame	Frame number	4.4.0 to 4.4.2
ltp.cancel_ack.cancel.time	Time since cancel	Time offset	4.4.0 to 4.4.2
ltp.cancel_ack.dupe.ref	Same acknowledgement in frame	Frame number	4.4.0 to 4.4.2
ltp.cancel_ack_nocancel	Cancel acknowledgement has no corresponding cancel segment	Label	4.4.0 to 4.4.2
ltp.cancel_noack	Cancel segment has no cancel acknowledgement segment	Label	4.4.0 to 4.4.2
ltp.data.chkp	Checkpoint serial number	Unsigned integer (64 bits)	1.4.0 to 4.4.2
ltp.data.chkp.rpt	Checkpoint report segment in frame	Frame number	4.2.0 to 4.4.2
ltp.data.chkp.rpt.time	Time to checkpoint report segment	Time offset	4.4.0 to 4.4.2
ltp.data.client.id	Client service ID	Unsigned integer (64 bits)	1.4.0 to 4.4.2
ltp.data.clm_rpt	Claimed in report segment in frame	Frame number	4.2.0 to 4.4.2
ltp.data.data	Client service data	Byte sequence	1.4.0 to 1.8.15, 4.2.0 to 4.4.2
ltp.data.length	Length	Unsigned integer (64 bits)	1.4.0 to 4.4.2
ltp.data.offset	Offset	Unsigned integer (64 bits)	1.4.0 to 4.4.2
ltp.data.retrans	Retransmission of data in frame	Frame number	4.2.0 to 4.4.2
ltp.data.rpt	Report serial number	Unsigned integer (64 bits)	1.4.0 to 4.4.2
ltp.data.rpt.ref	Response to report segment in frame	Frame number	4.2.0 to 4.4.2
ltp.data.rpt.time	Time since report	Time offset	4.2.0 to 4.4.2
ltp.data.sda.client.id	Client service ID	Unsigned integer (64 bits)	2.2.0 to 4.4.2
ltp.data_chkp_norpt	Data with checkpoint has no corresponding report segment	Label	4.4.0 to 4.4.2
ltp.data_rptno_norpt	Data with report serial has no corresponding report segment	Label	4.4.0 to 4.4.2
ltp.fragment	LTP Fragment	Frame number	1.4.0 to 4.4.2
ltp.fragment.count	LTP fragment count	Unsigned integer (32 bits)	1.6.0 to 4.4.2
ltp.fragment.error	LTP defragmentation error	Frame number	1.4.0 to 4.4.2
ltp.fragment.multiple_tails	LTP has multiple tails	Boolean	1.4.0 to 4.4.2
ltp.fragment.overlap	LTP fragment overlap	Boolean	1.4.0 to 4.4.2
ltp.fragment.overlap.conflicts	LTP fragment overlapping with conflicting data	Boolean	1.4.0 to 4.4.2
ltp.fragment.too_long_fragment	LTP fragment too long	Boolean	1.4.0 to 4.4.2
ltp.fragments	LTP Fragments	Label	1.4.0 to 4.4.2
ltp.hdr.extn.cnt	Header Extension Count	Unsigned integer (8 bits)	1.4.0 to 4.4.2
ltp.hdr.extn.len	Length	Unsigned integer (64 bits)	1.4.0 to 4.4.2
ltp.hdr.extn.tag	Extension tag	Unsigned integer (8 bits)	1.4.0 to 4.4.2
ltp.hdr.extn.val	Value	Byte sequence	1.4.0 to 4.4.2
ltp.mal_reception_claim	Reception claim count impossibly large	Label	1.12.0 to 4.4.2
ltp.neg_reception_claim_count	Negative reception claim count	Label	1.12.0 to 4.0.17
ltp.partial_packet		Character string	2.2.0 to 4.2.9
ltp.reassembled.in	LTP reassembled in	Frame number	1.4.0 to 4.4.2
ltp.reassembled.length	LTP reassembled length	Unsigned integer (32 bits)	1.4.0 to 4.4.2
ltp.report_async	Report segment not sent in response to a data checkpoint	Label	4.2.0 to 4.4.2
ltp.rpt.ack.sno	Report serial number	Unsigned integer (64 bits)	1.4.0 to 4.4.2
ltp.rpt.ack.sno.dupe	Same ack report number in frame	Frame number	4.2.0 to 4.4.2
ltp.rpt.ack.sno.ref	Response to report segment in frame	Frame number	4.2.0 to 4.4.2
ltp.rpt.ack.sno.time	Time since report	Time offset	4.2.0 to 4.4.2
ltp.rpt.bound_len	Report bound length	Unsigned integer (64 bits)	4.2.0 to 4.4.2
ltp.rpt.chkp	Checkpoint serial number	Unsigned integer (64 bits)	1.4.0 to 4.4.2
ltp.rpt.chkp.ref	Checkpoint data segment in frame	Frame number	4.2.0 to 4.4.2
ltp.rpt.chkp.time	Time since checkpoint	Time offset	4.2.0 to 4.4.2
ltp.rpt.clm.cnt	Reception claim count	Unsigned integer (64 bits)	1.4.0 to 4.4.2
ltp.rpt.clm.first	First block index	Unsigned integer (64 bits)	4.2.0 to 4.4.2
ltp.rpt.clm.last	Last block index	Unsigned integer (64 bits)	4.2.0 to 4.4.2
ltp.rpt.clm.len	Length	Unsigned integer (64 bits)	1.4.0 to 4.4.2
ltp.rpt.clm.off	Offset	Unsigned integer (64 bits)	1.4.0 to 4.4.2
ltp.rpt.clm.ref	Data segment in frame	Frame number	4.2.0 to 4.4.2
ltp.rpt.gap	Reception gap	Unsigned integer (64 bits)	4.2.0 to 4.4.2
ltp.rpt.gap.first	First block index	Unsigned integer (64 bits)	4.4.0 to 4.4.2
ltp.rpt.gap.last	Last block index	Unsigned integer (64 bits)	4.4.0 to 4.4.2
ltp.rpt.gap.ref	Data segment in frame	Frame number	4.2.0 to 4.4.2
ltp.rpt.gap_total	Total gap length	Unsigned integer (64 bits)	4.2.0 to 4.4.2
ltp.rpt.lb	Lower bound	Unsigned integer (64 bits)	1.4.0 to 4.4.2
ltp.rpt.retrans	Retransmission of report in frame	Frame number	4.2.0 to 4.4.2
ltp.rpt.sno	Report serial number	Unsigned integer (64 bits)	1.4.0 to 4.4.2
ltp.rpt.sno.ack	Report ack segment in frame	Frame number	4.2.0 to 4.4.2
ltp.rpt.sno.ack.time	Time to report ack segment	Time offset	4.4.0 to 4.4.2
ltp.rpt.sno.data	Responding data segment in frame	Frame number	4.2.0 to 4.4.2
ltp.rpt.sno.data.time	Time to checkpoint data segment	Time offset	4.4.0 to 4.4.2
ltp.rpt.ub	Upper bound	Unsigned integer (64 bits)	1.4.0 to 4.4.2
ltp.rpt_ack_norpt	Report has no report acknowledgement segment	Label	4.4.0 to 4.4.2
ltp.rpt_noack	Report segment has no corresponding acknowledgement	Label	4.4.0 to 4.4.2
ltp.rpt_nochkp	Report segment has no corresponding checkpoint data segment	Label	4.4.0 to 4.4.2
ltp.sdnv_length_invalid	SDNV length error	Label	2.2.0 to 4.4.2
ltp.serial_number_too_large	Serial number larger than CCSDS specification	Label	2.2.0 to 4.4.2
ltp.session	Session ID	Label	1.4.0 to 2.0.16
ltp.session.name	Session Name	Character string	4.2.0 to 4.4.2
ltp.session.number	Session number	Unsigned integer (64 bits)	1.4.0 to 4.4.2
ltp.session.orig	Session originator	Unsigned integer (64 bits)	1.4.0 to 4.4.2
ltp.trl.extn.cnt	Trailer Extension Count	Unsigned integer (8 bits)	1.4.0 to 4.4.2
ltp.trl.extn.len	Length	Unsigned integer (64 bits)	1.8.0 to 4.4.2
ltp.trl.extn.tag	Extension tag	Unsigned integer (8 bits)	1.8.0 to 4.4.2
ltp.trl.extn.val	Value	Byte sequence	1.8.0 to 4.4.2
ltp.type	LTP Type	Unsigned integer (8 bits)	1.4.0 to 4.4.2
ltp.version	LTP Version	Unsigned integer (8 bits)	1.4.0 to 4.4.2