Display Filter Reference: MTP2 Peer Adaptation Layer

Protocol field name: m2pa

Versions: 1.0.0 to 2.6.1

Back to Display Filter Reference

Field name Description Type Versions
m2pa.bsn BSN Unsigned integer, 3 bytes 1.0.0 to 2.6.1
m2pa.class Message Class Unsigned integer, 1 byte 1.0.0 to 2.6.1
m2pa.filler Filler Sequence of bytes 1.0.0 to 2.6.1
m2pa.fsn FSN Unsigned integer, 3 bytes 1.0.0 to 2.6.1
m2pa.length Message length Unsigned integer, 4 bytes 1.0.0 to 2.6.1
m2pa.length.invalid Invalid message data length Label 2.0.0 to 2.6.1
m2pa.li_priority Priority Unsigned integer, 1 byte 1.0.0 to 1.4.15
m2pa.li_priority_v2 Priority Unsigned integer, 1 byte 1.6.0 to 2.6.1
m2pa.li_priority_v8 Priority Unsigned integer, 1 byte 1.6.0 to 2.6.1
m2pa.li_spare Spare Unsigned integer, 1 byte 1.0.0 to 1.4.15
m2pa.li_spare_v2 Spare Unsigned integer, 1 byte 1.6.0 to 2.6.1
m2pa.li_spare_v8 Spare Unsigned integer, 1 byte 1.6.0 to 2.6.1
m2pa.priority Priority Unsigned integer, 1 byte 1.0.0 to 2.6.1
m2pa.priority_spare Spare Unsigned integer, 1 byte 1.0.0 to 2.6.1
m2pa.spare Spare Unsigned integer, 1 byte 1.0.0 to 2.6.1
m2pa.status Link Status Unsigned integer, 4 bytes 1.0.0 to 2.6.1
m2pa.status_v2 Link Status Unsigned integer, 4 bytes 1.6.0 to 2.6.1
m2pa.status_v8 Link Status Unsigned integer, 4 bytes 1.6.0 to 2.6.1
m2pa.type Message Type Unsigned integer, 1 byte 1.0.0 to 2.6.1
m2pa.type_v2 Message Type Unsigned integer, 2 bytes 1.6.0 to 2.6.1
m2pa.type_v8 Message Type Unsigned integer, 1 byte 1.6.0 to 2.6.1
m2pa.undecoded_data Undecoded data Sequence of bytes 1.4.0 to 2.6.1
m2pa.undecoded_data.expert There are bytes of data which is greater than M2PA\'s length parameter Label 1.12.0 to 2.6.1
m2pa.unknown_data Unknown Data Sequence of bytes 1.0.0 to 2.6.1
m2pa.unused Unused Unsigned integer, 1 byte 1.0.0 to 2.6.1
m2pa.version Version Unsigned integer, 1 byte 1.0.0 to 2.6.1
Go Beyond with Riverbed Technology

Riverbed is Wireshark's primary sponsor and provides our funding. They also make great products that fully integrate with Wireshark.

I have a lot of traffic...

ANSWER: SteelCentral™ Packet Analyzer PE
  • • Visually rich, powerful LAN analyzer
  • • Quickly access very large pcap files
  • • Professional, customizable reports
  • • Advanced triggers and alerts
Learn More

Buy Now

No, really, I have a LOT of traffic…

ANSWER: SteelCentral™ NetShark appliance
  • • Troubleshoot problems faster
  • • Quickly identify the applications running on your network
  • • Monitor your virtual machine traffic
Learn More