Display Filter Reference: Bluetooth L2CAP Protocol

Protocol field name: btl2cap

Versions: 1.0.0 to 3.4.5

Back to Display Filter Reference

Field name Description Type Versions
btl2cap.cid CID Unsigned integer, 2 bytes 1.0.0 to 3.4.5
btl2cap.cmd_code Command Code Unsigned integer, 1 byte 1.0.0 to 3.4.5
btl2cap.cmd_data Command Data Label 1.0.0 to 3.4.5
btl2cap.cmd_ident Command Identifier Unsigned integer, 1 byte 1.0.0 to 3.4.5
btl2cap.cmd_length Command Length Unsigned integer, 1 byte 1.0.0 to 3.4.5
btl2cap.command Command Label 1.0.0 to 3.4.5
btl2cap.conf_param_option Configuration Parameter Option Label 1.0.0 to 3.4.5
btl2cap.conf_result Result Unsigned integer, 2 bytes 1.0.0 to 3.4.5
btl2cap.connect_in Connect in frame Frame number 2.0.0 to 3.4.5
btl2cap.continuation Continuation Flag Boolean 1.0.0 to 1.10.14
btl2cap.continuation_to This is a continuation to the SDU in frame Frame number 1.2.0 to 3.4.5
btl2cap.control Control field Label 1.2.0 to 3.4.5
btl2cap.control_reqseq ReqSeq Unsigned integer, 2 bytes 1.2.0 to 3.4.5
btl2cap.control_retransmissiondisable R Unsigned integer, 2 bytes 1.2.0 to 3.4.5
btl2cap.control_sar Segmentation and reassembly Unsigned integer, 2 bytes 1.2.0 to 3.4.5
btl2cap.control_supervisory S Unsigned integer, 2 bytes 1.2.0 to 3.4.5
btl2cap.control_txseq TxSeq Unsigned integer, 2 bytes 1.2.0 to 3.4.5
btl2cap.control_type Frame Type Unsigned integer, 2 bytes 1.2.0 to 3.4.5
btl2cap.credits Credits Unsigned integer, 2 bytes 1.12.0 to 3.4.5
btl2cap.ctrl_id Controller ID Unsigned integer, 1 byte 1.4.0 to 3.4.5
btl2cap.data Data Sequence of bytes 1.12.0 to 3.4.5
btl2cap.dcid Destination CID Unsigned integer, 2 bytes 1.0.0 to 3.4.5
btl2cap.dctrl_id Controller ID Unsigned integer, 1 byte 1.4.0 to 3.4.5
btl2cap.disconnect_in Disconnect in frame Frame number 2.0.0 to 3.4.5
btl2cap.fcs FCS Unsigned integer, 2 bytes 1.2.0 to 3.4.5
btl2cap.flags.continuation Continuation Flag Boolean 1.12.0 to 3.4.5
btl2cap.flags.reserved Reserved Unsigned integer, 2 bytes 1.12.0 to 3.4.5
btl2cap.icid Initiator CID Unsigned integer, 2 bytes 1.4.0 to 3.4.5
btl2cap.info_bidirqos Bi-Directional QOS Unsigned integer, 4 bytes 1.0.0 to 3.4.5
btl2cap.info_enh_retransmission Enhanced Retransmission Mode Unsigned integer, 4 bytes 1.4.0 to 3.4.5
btl2cap.info_extfeatures Extended Features Label 1.2.0 to 3.4.5
btl2cap.info_fcs FCS Unsigned integer, 4 bytes 1.4.0 to 3.4.5
btl2cap.info_fixedchan Fixed Channels Unsigned integer, 4 bytes 1.4.0 to 3.4.5
btl2cap.info_fixedchans Fixed Channels Label 1.4.0 to 3.4.5
btl2cap.info_fixedchans_amp_man AMP Manager protocol Unsigned integer, 4 bytes 1.4.0 to 3.4.5
btl2cap.info_fixedchans_amp_test AMP Test Manager Unsigned integer, 4 bytes 1.4.0 to 3.4.5
btl2cap.info_fixedchans_connless Connectionless reception Unsigned integer, 4 bytes 1.4.0 to 3.4.5
btl2cap.info_fixedchans_null Null identifier Unsigned integer, 4 bytes 1.4.0 to 3.4.5
btl2cap.info_fixedchans_signal L2CAP signaling channel Unsigned integer, 4 bytes 1.4.0 to 3.4.5
btl2cap.info_flow_spec Extended Flow Specification for BR/EDR Unsigned integer, 4 bytes 1.4.0 to 3.4.5
btl2cap.info_flowcontrol Flow Control Mode Unsigned integer, 4 bytes 1.0.0 to 3.4.5
btl2cap.info_mtu Remote Entity MTU Unsigned integer, 2 bytes 1.0.0 to 3.4.5
btl2cap.info_result Result Unsigned integer, 2 bytes 1.0.0 to 3.4.5
btl2cap.info_retransmission Retransmission Mode Unsigned integer, 4 bytes 1.0.0 to 3.4.5
btl2cap.info_streaming Streaming Mode Unsigned integer, 4 bytes 1.4.0 to 3.4.5
btl2cap.info_type Information Type Unsigned integer, 2 bytes 1.0.0 to 3.4.5
btl2cap.info_unicast Unicast Connectionless Data Reception Unsigned integer, 4 bytes 1.4.0 to 3.4.5
btl2cap.info_window Extended Window Size Unsigned integer, 4 bytes 1.4.0 to 3.4.5
btl2cap.initial_credits Initial Credits Unsigned integer, 2 bytes 1.12.0 to 3.4.5
btl2cap.le_psm LE PSM Unsigned integer, 2 bytes 1.12.0 to 3.4.5
btl2cap.le_result LE Result Unsigned integer, 2 bytes 1.12.0 to 3.4.5
btl2cap.le_sdu.fragment SDU fragment Frame number 2.4.0 to 3.4.5
btl2cap.le_sdu.fragment.count SDU fragment count Unsigned integer, 4 bytes 2.4.0 to 3.4.5
btl2cap.le_sdu.fragment.error SDU defragmentation error Frame number 2.4.0 to 3.4.5
btl2cap.le_sdu.fragment.multiple_tails SDU has multiple tail fragments Boolean 2.4.0 to 3.4.5
btl2cap.le_sdu.fragment.overlap SDU fragment overlap Boolean 2.4.0 to 3.4.5
btl2cap.le_sdu.fragment.overlap.conflicts SDU fragment overlapping with conflicting data Boolean 2.4.0 to 3.4.5
btl2cap.le_sdu.fragment.too_long_fragment SDU fragment too long Boolean 2.4.0 to 3.4.5
btl2cap.le_sdu.fragments SDU fragments Label 2.4.0 to 3.4.5
btl2cap.le_sdu.reassembled.in Reassembled in Frame number 2.4.0 to 3.4.5
btl2cap.le_sdu.reassembled.length Reassembled SDU length Unsigned integer, 4 bytes 2.4.0 to 3.4.5
btl2cap.le_sdu_length SDU Length Unsigned integer, 2 bytes 2.4.0 to 3.4.5
btl2cap.length Length Unsigned integer, 2 bytes 1.0.0 to 3.4.5
btl2cap.length.bad Length too short Label 1.12.0 to 3.4.5
btl2cap.max_interval Max. Interval Unsigned integer, 2 bytes 1.10.0 to 3.4.5
btl2cap.maxtransmit MaxTransmit Unsigned integer, 1 byte 1.0.0 to 3.4.5
btl2cap.min_interval Min. Interval Unsigned integer, 2 bytes 1.10.0 to 3.4.5
btl2cap.monitortimeout Monitor Timeout (ms) Unsigned integer, 2 bytes 1.0.0 to 3.4.5
btl2cap.move_result Move Result Unsigned integer, 2 bytes 1.4.0 to 3.4.5
btl2cap.mps MPS Unsigned integer, 2 bytes 1.0.0 to 3.4.5
btl2cap.option_access_latency Access Latency (us) Unsigned integer, 4 bytes 1.4.0 to 3.4.5
btl2cap.option_dealyvar Delay Variation (microseconds) Unsigned integer, 4 bytes 1.0.0 to 1.0.16
btl2cap.option_delayvar Delay Variation (microseconds) Unsigned integer, 4 bytes 1.2.0 to 3.4.5
btl2cap.option_fcs FCS Unsigned integer, 2 bytes 1.4.0 to 3.4.5
btl2cap.option_flags Flags Unsigned integer, 1 byte 1.0.0 to 3.4.5
btl2cap.option_flushto Flush Timeout (ms) Unsigned integer, 2 bytes 1.0.0 to 3.4.5
btl2cap.option_ident Identifier Unsigned integer, 1 byte 1.4.0 to 3.4.5
btl2cap.option_latency Latency (microseconds) Unsigned integer, 4 bytes 1.0.0 to 3.4.5
btl2cap.option_length Length Unsigned integer, 1 byte 1.0.0 to 3.4.5
btl2cap.option_mtu MTU Unsigned integer, 2 bytes 1.0.0 to 3.4.5
btl2cap.option_peakbandwidth Peak Bandwidth (bytes/s) Unsigned integer, 4 bytes 1.0.0 to 3.4.5
btl2cap.option_sdu_arrival_time SDU Inter-arrival Time (us) Unsigned integer, 4 bytes 1.4.0 to 3.4.5
btl2cap.option_sdu_size Maximum SDU Size Unsigned integer, 2 bytes 1.4.0 to 3.4.5
btl2cap.option_servicetype Service Type Unsigned integer, 1 byte 1.0.0 to 3.4.5
btl2cap.option_tokenbsize Token Bucket Size (bytes) Unsigned integer, 4 bytes 1.0.0 to 3.4.5
btl2cap.option_tokenrate Token Rate (bytes/s) Unsigned integer, 4 bytes 1.0.0 to 3.4.5
btl2cap.option_type Type Unsigned integer, 1 byte 1.0.0 to 3.4.5
btl2cap.option_window Extended Window Size Unsigned integer, 2 bytes 1.4.0 to 3.4.5
btl2cap.parameter_mismatch Parameter mismatch Label 1.12.0 to 3.4.5
btl2cap.payload Payload Sequence of bytes 1.0.0 to 3.4.5
btl2cap.psm PSM Unsigned integer, 2 bytes 1.0.0 to 3.4.5
btl2cap.reassembled_in This SDU is reassembled in frame Frame number 1.2.0 to 3.4.5
btl2cap.rej_reason Reason Unsigned integer, 2 bytes 1.0.0 to 1.2.18, 1.6.0 to 3.4.5
btl2cap.result Result Unsigned integer, 2 bytes 1.0.0 to 3.4.5
btl2cap.retransmissionmode Mode Unsigned integer, 1 byte 1.0.0 to 3.4.5
btl2cap.retransmittimeout Retransmit timeout (ms) Unsigned integer, 2 bytes 1.0.0 to 3.4.5
btl2cap.scid Source CID Unsigned integer, 2 bytes 1.0.0 to 3.4.5
btl2cap.sdulength SDU Length Unsigned integer, 2 bytes 1.2.0 to 3.4.5
btl2cap.sdulength.bad SDU length bad Label 1.12.0 to 3.4.5
btl2cap.service Service Unsigned integer, 2 bytes 2.2.0 to 3.4.5
btl2cap.sig_mtu Maximum Signalling MTU Unsigned integer, 2 bytes 1.0.0 to 3.4.5
btl2cap.slave_latency Slave Latency Unsigned integer, 2 bytes 1.10.0 to 3.4.5
btl2cap.status Status Unsigned integer, 2 bytes 1.0.0 to 3.4.5
btl2cap.timeout_multiplier Timeout Multiplier Unsigned integer, 2 bytes 1.10.0 to 3.4.5
btl2cap.txwindow TxWindow Unsigned integer, 1 byte 1.0.0 to 3.4.5
btl2cap.unknown_command_code Unknown Command Code Label 1.12.0 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