Display Filter Reference: ISO 8073/X.224 COTP Connection-Oriented Transport Protocol

Protocol field name: cotp

Versions: 1.0.0 to 2.6.5

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Field name Description Type Versions
cotp.ack_time Ack time (ms) Unsigned integer, 2 bytes 2.0.0 to 2.6.5
cotp.atn_extended_checksum ATN extended checksum Unsigned integer, 2 bytes 2.0.0 to 2.6.5
cotp.atn_extended_checksum.status ATN extended checksum Status Unsigned integer, 1 byte 2.4.0 to 2.6.5
cotp.avg_throughput.min_accept_called_calling Average throughput, minimum acceptable, called-calling (o/s) Unsigned integer, 3 bytes 2.0.0 to 2.6.5
cotp.avg_throughput.min_accept_calling_called Average throughput, minimum acceptable, calling-called (o/s) Unsigned integer, 3 bytes 2.0.0 to 2.6.5
cotp.avg_throughput.targ_called_calling Average throughput, target value, called-calling (o/s) Unsigned integer, 3 bytes 2.0.0 to 2.6.5
cotp.avg_throughput.targ_calling_called Average throughput, target value, calling-called (o/s) Unsigned integer, 3 bytes 2.0.0 to 2.6.5
cotp.bad_checksum Bad checksum Label 2.4.0 to 2.6.5
cotp.cause Cause Unsigned integer, 1 byte 2.0.0 to 2.6.5
cotp.checksum Checksum Unsigned integer, 2 bytes 2.0.0 to 2.6.5
cotp.checksum.status Checksum Status Unsigned integer, 1 byte 2.4.0 to 2.6.5
cotp.class Class Unsigned integer, 1 byte 1.2.0 to 2.6.5
cotp.connection Connection %s: 0x%x -> 0x%x Label 1.12.0 to 2.6.5
cotp.credit Credit Unsigned integer, 2 bytes 2.0.0 to 2.6.5
cotp.destref Destination reference Unsigned integer, 2 bytes 1.0.0 to 2.6.5
cotp.disconnect_confirm Disconnect Confirm(DC): 0x%x -> 0x%x Label 1.12.0 to 2.6.5
cotp.disconnect_request Disconnect Request(DR): 0x%x -> 0x%x Label 1.12.0 to 2.6.5
cotp.dst-tsap Destination TSAP Character string 1.0.0 to 2.6.5
cotp.dst-tsap-bytes Destination TSAP Sequence of bytes 1.0.0 to 2.6.5
cotp.eot Last data unit Boolean 1.0.0 to 2.6.5
cotp.inactivity_timer Inactivity timer (ms) Unsigned integer, 4 bytes 2.0.0 to 2.6.5
cotp.li Length Unsigned integer, 1 byte 1.0.0 to 2.6.5
cotp.lower_window_edge Lower window edge Unsigned integer, 4 bytes 2.0.0 to 2.6.5
cotp.max_throughput.min_accept_called_calling Maximum throughput, minimum acceptable, called-calling (o/s) Unsigned integer, 3 bytes 2.0.0 to 2.6.5
cotp.max_throughput.min_accept_calling_called Maximum throughput, minimum acceptable, calling-called (o/s) Unsigned integer, 3 bytes 2.0.0 to 2.6.5
cotp.max_throughput.targ_called_calling Maximum throughput, target value, called-calling (o/s) Unsigned integer, 3 bytes 2.0.0 to 2.6.5
cotp.max_throughput.targ_calling_called Maximum throughput, target value, calling-called (o/s) Unsigned integer, 3 bytes 2.0.0 to 2.6.5
cotp.multiple_tpdus Multiple TPDUs in one packet Label 1.12.0 to 2.6.5
cotp.network_expedited_data Use of network expedited data Boolean 2.0.0 to 2.6.5
cotp.next-tpdu-number Your TPDU number Unsigned integer, 1 byte 1.0.0 to 2.6.5
cotp.opts.extended_formats Extended formats Boolean 1.2.0 to 2.6.5
cotp.opts.no_explicit_flow_control No explicit flow control Boolean 1.2.0 to 2.6.5
cotp.parameter_code Parameter code Unsigned integer, 1 byte 2.0.0 to 2.6.5
cotp.parameter_length Parameter length Unsigned integer, 1 byte 2.0.0 to 2.6.5
cotp.parameter_value Parameter value Sequence of bytes 2.0.0 to 2.6.5
cotp.preferred_maximum_tpdu_size Preferred maximum TPDU size Unsigned integer, 4 bytes 2.0.0 to 2.6.5
cotp.preferred_maximum_tpdu_size.invalid Preferred maximum TPDU size: bogus length Label 2.0.0 to 2.6.5
cotp.reassembled.length Reassembled COTP length Unsigned integer, 4 bytes 1.4.0 to 2.6.5
cotp.reassembled_in Reassembled COTP in frame Frame number 1.0.0 to 2.6.5
cotp.reassignment_time Reassignment time (secs) Unsigned integer, 2 bytes 2.0.0 to 2.6.5
cotp.reject Reject(RJ): -> 0x%x Label 1.12.0 to 2.6.5
cotp.reject_cause Reject cause Unsigned integer, 1 byte 2.0.0 to 2.6.5
cotp.res_error_rate.min_accept Residual error rate, minimum acceptable Unsigned integer, 1 byte 2.0.0 to 2.6.5
cotp.res_error_rate.target_value Residual error rate, target value Unsigned integer, 1 byte 2.0.0 to 2.6.5
cotp.res_error_rate.tdsu Residual error rate, TSDU size of interest Unsigned integer, 1 byte 2.0.0 to 2.6.5
cotp.segment COTP Segment Frame number 1.0.0 to 2.6.5
cotp.segment.count Segment count Unsigned integer, 4 bytes 1.6.0 to 2.6.5
cotp.segment.error Reassembly error Frame number 1.0.0 to 2.6.5
cotp.segment.multipletails Multiple tail segments found Boolean 1.0.0 to 2.6.5
cotp.segment.overlap Segment overlap Boolean 1.0.0 to 2.6.5
cotp.segment.overlap.conflict Conflicting data in segment overlap Boolean 1.0.0 to 2.6.5
cotp.segment.toolongsegment Segment too long Boolean 1.0.0 to 2.6.5
cotp.segment_data COTP segment data Sequence of bytes 2.0.0 to 2.6.5
cotp.segments COTP Segments Label 1.0.0 to 2.6.5
cotp.sequence_number Sequence number Unsigned integer, 2 bytes 2.0.0 to 2.6.5
cotp.src-tsap Source TSAP Character string 1.0.0 to 2.6.5
cotp.src-tsap-bytes Source TSAP Sequence of bytes 1.0.0 to 2.6.5
cotp.srcref Source reference Unsigned integer, 2 bytes 1.0.0 to 2.6.5
cotp.tpdu-number TPDU number Unsigned integer, 1 byte 1.0.0 to 2.6.5
cotp.tpdu_size TPDU size Unsigned integer, 1 byte 2.0.0 to 2.6.5
cotp.transit_delay.max_accept_called_calling Transit delay, maximum acceptable, called-calling (ms) Unsigned integer, 2 bytes 2.0.0 to 2.6.5
cotp.transit_delay.max_accept_calling_called Transit delay, maximum acceptable, calling-called (ms) Unsigned integer, 2 bytes 2.0.0 to 2.6.5
cotp.transit_delay.targ_called_calling Transit delay, target value, called-calling (ms) Unsigned integer, 2 bytes 2.0.0 to 2.6.5
cotp.transit_delay.targ_calling_called Transit delay, target value, calling-called (ms) Unsigned integer, 2 bytes 2.0.0 to 2.6.5
cotp.transport_expedited_data_transfer Transport expedited data transfer Boolean 2.0.0 to 2.6.5
cotp.type PDU Type Unsigned integer, 1 byte 1.0.0 to 2.6.5
cotp.use_16_bit_checksum 16 bit checksum Boolean 2.0.0 to 2.6.5
cotp.vp_opt_sel_class1_use Use Boolean 2.0.0 to 2.6.5
cotp.vp_priority Priority Unsigned integer, 2 bytes 2.0.0 to 2.6.5
cotp.vp_version_nr Version Unsigned integer, 1 byte 2.0.0 to 2.6.5
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