Wireshark · Display Filter Reference: Message Transfer Part Level 2

Field name	Description	Type	Versions
mtp2.bib	Backward indicator bit	Unsigned integer (8 bits)	1.0.0 to 4.4.2
mtp2.bsn	Backward sequence number	Unsigned integer (8 bits)	1.0.0 to 4.4.2
mtp2.checksum.error	MTP2 Frame CheckFCS 16 Error	Label	1.12.0 to 4.4.2
mtp2.fcs_16	FCS 16	Unsigned integer (16 bits)	2.0.0 to 4.4.2
mtp2.fcs_16.status	FCS 16	Unsigned integer (8 bits)	2.4.0 to 4.4.2
mtp2.fib	Forward indicator bit	Unsigned integer (8 bits)	1.0.0 to 4.4.2
mtp2.frame_reset	Frame reset	Label	3.0.0 to 4.4.2
mtp2.fsn	Forward sequence number	Unsigned integer (8 bits)	1.0.0 to 4.4.2
mtp2.li	Length Indicator	Unsigned integer (8 bits)	1.0.0 to 4.4.2
mtp2.li.bad	Bad length indicator value	Label	2.6.0 to 4.4.2
mtp2.msg.fragment	Message fragment	Frame number	3.0.0 to 4.4.2
mtp2.msg.fragment.count	Message defragmentation count	Frame number	3.0.0 to 4.4.2
mtp2.msg.fragment.error	Message defragmentation error	Frame number	3.0.0 to 4.4.2
mtp2.msg.fragment.multiple_tails	Message has multiple tail fragments	Boolean	3.0.0 to 4.4.2
mtp2.msg.fragment.overlap	Message fragment overlap	Boolean	3.0.0 to 4.4.2
mtp2.msg.fragment.overlap.conflicts	Message fragment overlapping with conflicting data	Boolean	3.0.0 to 4.4.2
mtp2.msg.fragment.too_long_fragment	Message fragment too long	Boolean	3.0.0 to 4.4.2
mtp2.msg.fragments	Message fragments	Label	3.0.0 to 4.4.2
mtp2.msg.reassembled.in	Reassembled in	Frame number	3.0.0 to 4.4.2
mtp2.msg.reassembled.length	Reassembled length	Unsigned integer (32 bits)	3.0.0 to 4.4.2
mtp2.res	Reserved	Unsigned integer (16 bits)	1.0.0 to 4.4.2
mtp2.sf	Status field	Unsigned integer (8 bits)	1.0.0 to 4.4.2
mtp2.sf_extra	Status field extra octet	Unsigned integer (8 bits)	1.2.0 to 4.4.2
mtp2.spare	Spare	Unsigned integer (8 bits)	1.0.0 to 4.4.2
mtp2.unexpected_end	Unexpected packet end	Label	3.0.0 to 4.4.2