Display Filter Reference: Unidirectional Link Detection

Protocol field name: udld

Versions: 1.0.0 to 3.4.5

Back to Display Filter Reference

Field name Description Type Versions
udld.checksum Checksum Unsigned integer, 2 bytes 1.0.0 to 3.4.5
udld.data Data Sequence of bytes 2.0.0 to 3.4.5
udld.device_id Device ID Character string 2.0.0 to 3.4.5
udld.flags Flags Unsigned integer, 1 byte 1.0.0 to 3.4.5
udld.flags.rsy ReSynch Unsigned integer, 1 byte 1.0.0 to 3.4.5
udld.flags.rt Recommended timeout Unsigned integer, 1 byte 1.0.0 to 3.4.5
udld.opcode Opcode Unsigned integer, 1 byte 1.0.0 to 3.4.5
udld.sent_through_interface Sent through Interface Character string 2.0.0 to 3.4.5
udld.tlv.len Length Unsigned integer, 2 bytes 1.0.0 to 3.4.5
udld.tlv.len.invalid TLV with invalid length (< 4) Label 2.0.0 to 3.4.5
udld.tlv.type Type Unsigned integer, 2 bytes 1.0.0 to 3.4.5
udld.version Version Unsigned integer, 1 byte 1.0.0 to 3.4.5
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™ AppResponse 11
  • • Full stack analysis – from packets to pages
  • • Rich performance metrics & pre-defined insights for fast problem identification/resolution
  • • Modular, flexible solution for deeply-analyzing network & application performance
Learn More