Wireshark · Display Filter Reference: ATSC Link-Layer Protocol

Field name	Description	Type	Versions
alp.ahf	Additional Header Flag	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.cc	Concatenation Count	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.dnp	Deleted Null Packets	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.hdm	Header Deletion Mode	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.he	Header Extension	Label	4.2.0 to 4.4.2
alp.he.length	Header Extension Length	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.he.sony_l1d_timeinfo	Sony L1D Time Info Extension Raw	Unsigned integer (64 bits)	4.2.0 to 4.4.2
alp.he.sony_l1d_timeinfo.flag	Sony L1D Time Info Flag	Unsigned integer (64 bits)	4.2.0 to 4.4.2
alp.he.sony_l1d_timeinfo.ms	Sony L1D Time Info Milliseconds	Unsigned integer (64 bits)	4.2.0 to 4.4.2
alp.he.sony_l1d_timeinfo.ns	Sony L1D Time Info Nanoseconds	Unsigned integer (64 bits)	4.2.0 to 4.4.2
alp.he.sony_l1d_timeinfo.sec	Sony L1D Time Info Seconds	Unsigned integer (64 bits)	4.2.0 to 4.4.2
alp.he.sony_l1d_timeinfo.time	Sony L1D Time Info TAI Time	Date and time	4.2.0 to 4.4.2
alp.he.sony_l1d_timeinfo.time_ns	Sony L1D Time Info TAI Time (ns)	Unsigned integer (64 bits)	4.2.0 to 4.4.2
alp.he.sony_l1d_timeinfo.us	Sony L1D Time Info Microseconds	Unsigned integer (64 bits)	4.2.0 to 4.4.2
alp.he.sony_plp.id	Sony PLP Extension PLP ID	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.he.sony_plp.unknown	Sony PLP Extension Unknown Bits	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.he.type	Header Extension Type	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.hef	Header Extension Flag	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.hm	Header Mode	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.junk	Junk	Byte sequence	4.2.0 to 4.4.2
alp.length	Length	Unsigned integer (16 bits)	4.2.0 to 4.4.2
alp.lmt	Link Mapping Table	Label	4.2.0 to 4.4.2
alp.lmt.numplp	Number of PLPs	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.lmt.reserved	Reserved	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.lsi	Last Segment Indicator	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.numts	Number of TS packets	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.pc	Payload Configuration	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.plp	PLP	Label	4.2.0 to 4.4.2
alp.plp.id	PLP ID	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.plp.mc	Multicast Entry	Label	4.2.0 to 4.4.2
alp.plp.mc.comp_flag	Compressed Flag	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.plp.mc.context_id	Reserved	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.plp.mc.dst_ip	Destination IP	IPv4 address	4.2.0 to 4.4.2
alp.plp.mc.dst_port	Destination IP	Unsigned integer (16 bits)	4.2.0 to 4.4.2
alp.plp.mc.reserved	Reserved	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.plp.mc.sid	Reserved	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.plp.mc.sid_flag	SID Flag	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.plp.mc.src_ip	Source IP	IPv4 address	4.2.0 to 4.4.2
alp.plp.mc.src_port	Source Port	Unsigned integer (16 bits)	4.2.0 to 4.4.2
alp.plp.nummc	Number of Multicast Entries	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.plp.reserved	Reserved	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.sc	Segmentation Concatenation	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.si	Sub-stream Identification	Label	4.2.0 to 4.4.2
alp.si_sid	Sub-stream Identifier	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.sif	Sub-stream Identifier Flag	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.sih	Signalling Information Header	Label	4.2.0 to 4.4.2
alp.sih_encoding	Signalling Encoding	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.sih_format	Signalling Format	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.sih_type	Signalling Type	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.sih_type_ext	Signalling Type Extension	Unsigned integer (16 bits)	4.2.0 to 4.4.2
alp.sih_version	Signalling Version	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.ssn	Segment Sequence Number	Unsigned integer (8 bits)	4.2.0 to 4.4.2
alp.type	Packet Type	Unsigned integer (8 bits)	4.2.0 to 4.4.2