Display Filter Reference: MQ Telemetry Transport Protocol
Protocol field name: mqtt
Versions: 1.12.0 to 3.4.5
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| Field name | Description | Type | Versions |
|---|---|---|---|
| mqtt.auth.reason_code | Reason Code | Unsigned integer, 1 byte | 2.6.0 to 3.4.5 |
| mqtt.clientid | Client ID | Character string | 1.12.0 to 3.4.5 |
| mqtt.clientid_len | Client ID Length | Unsigned integer, 2 bytes | 2.4.0 to 3.4.5 |
| mqtt.conack.flags | Acknowledge Flags | Unsigned integer, 1 byte | 2.4.0 to 3.4.5 |
| mqtt.conack.flags.reserved | Reserved | Boolean | 2.4.0 to 3.4.5 |
| mqtt.conack.flags.sp | Session Present | Boolean | 2.4.0 to 3.4.5 |
| mqtt.conack.val | Return Code | Unsigned integer, 1 byte | 1.12.0 to 3.4.5 |
| mqtt.conflag.cleansess | Clean Session Flag | Boolean | 1.12.0 to 3.4.5 |
| mqtt.conflag.passwd | Password Flag | Boolean | 1.12.0 to 3.4.5 |
| mqtt.conflag.qos | QoS Level | Unsigned integer, 1 byte | 1.12.0 to 3.4.5 |
| mqtt.conflag.reserved | (Reserved) | Boolean | 1.12.0 to 3.4.5 |
| mqtt.conflag.retain | Will Retain | Boolean | 1.12.0 to 3.4.5 |
| mqtt.conflag.uname | User Name Flag | Boolean | 1.12.0 to 3.4.5 |
| mqtt.conflag.willflag | Will Flag | Boolean | 1.12.0 to 3.4.5 |
| mqtt.conflags | Connect Flags | Unsigned integer, 1 byte | 1.12.0 to 3.4.5 |
| mqtt.connack.reason_code | Reason Code | Unsigned integer, 1 byte | 2.6.0 to 3.4.5 |
| mqtt.disconnect.reason_code | Reason Code | Unsigned integer, 1 byte | 2.6.0 to 3.4.5 |
| mqtt.dupflag | DUP Flag | Boolean | 1.12.0 to 3.4.5 |
| mqtt.hdr_reserved | Reserved | Unsigned integer, 1 byte | 2.4.3 to 3.4.5 |
| mqtt.hdrflags | Header Flags | Unsigned integer, 1 byte | 1.12.0 to 3.4.5 |
| mqtt.illegal_topic_length | Length cannot be 0 | Label | 3.4.0 to 3.4.5 |
| mqtt.kalive | Keep Alive | Unsigned integer, 2 bytes | 1.12.0 to 3.4.5 |
| mqtt.len | Msg Len | Unsigned integer, 8 bytes | 1.12.0 to 3.4.5 |
| mqtt.msg | Message | Sequence of bytes | 1.12.0 to 3.4.5 |
| mqtt.msg_decoded_as | Message decoded as | Character string | 2.6.0 to 3.4.5 |
| mqtt.msg_text | Message | Character string | 3.2.0 to 3.4.5 |
| mqtt.msgid | Message Identifier | Unsigned integer, 2 bytes | 1.12.0 to 3.4.5 |
| mqtt.msgtype | Message Type | Unsigned integer, 1 byte | 1.12.0 to 3.4.5 |
| mqtt.passwd | Password | Character string | 1.12.0 to 3.4.5 |
| mqtt.passwd_len | Password Length | Unsigned integer, 2 bytes | 2.4.0 to 3.4.5 |
| mqtt.prop_key | Key | Character string | 2.6.0 to 3.4.5 |
| mqtt.prop_key_len | Key Length | Unsigned integer, 4 bytes | 2.6.0 to 3.4.5 |
| mqtt.prop_max_qos_value | QoS | Unsigned integer, 1 byte | 2.6.0 to 3.2.13 |
| mqtt.prop_number | Value | Unsigned integer, 4 bytes | 2.6.0 to 3.4.5 |
| mqtt.prop_string | Value | Character string | 2.6.0 to 3.4.5 |
| mqtt.prop_string_len | Length | Unsigned integer, 4 bytes | 2.6.0 to 3.4.5 |
| mqtt.prop_unknown | Unknown Property | Character string | 2.6.0 to 3.4.5 |
| mqtt.prop_value | Value | Character string | 2.6.0 to 3.4.5 |
| mqtt.prop_value_len | Value Length | Unsigned integer, 4 bytes | 2.6.0 to 3.4.5 |
| mqtt.properties | Properties | Label | 2.6.0 to 3.4.5 |
| mqtt.property.content_type | Content Type | Character string | 3.4.0 to 3.4.5 |
| mqtt.property.max_qos | QoS | Unsigned integer, 1 byte | 3.4.0 to 3.4.5 |
| mqtt.property.topic_alias | Topic Alias | Unsigned integer, 2 bytes | 3.4.0 to 3.4.5 |
| mqtt.property_id | ID | Unsigned integer, 1 byte | 2.6.0 to 3.4.5 |
| mqtt.property_len | Total Length | Unsigned integer, 8 bytes | 2.6.0 to 3.4.5 |
| mqtt.proto_len | Protocol Name Length | Unsigned integer, 2 bytes | 2.4.0 to 3.4.5 |
| mqtt.protoname | Protocol Name | Character string | 1.12.0 to 3.4.5 |
| mqtt.puback.reason_code | Reason Code | Unsigned integer, 1 byte | 2.6.0 to 3.4.5 |
| mqtt.pubcomp.reason_code | Reason Code | Unsigned integer, 1 byte | 2.6.0 to 3.4.5 |
| mqtt.pubrec.reason_code | Reason Code | Unsigned integer, 1 byte | 2.6.0 to 3.4.5 |
| mqtt.pubrel.reason_code | Reason Code | Unsigned integer, 1 byte | 2.6.0 to 3.4.5 |
| mqtt.qos | QoS Level | Unsigned integer, 1 byte | 1.12.0 to 3.4.5 |
| mqtt.retain | Retain | Boolean | 1.12.0 to 3.4.5 |
| mqtt.retain_reserved | Reserved | Unsigned integer, 1 byte | 2.4.3 to 3.4.5 |
| mqtt.sub.qos | Requested QoS | Unsigned integer, 1 byte | 2.4.0 to 3.4.5 |
| mqtt.suback.id | Granted Qos | Unsigned integer, 1 byte | 1.12.0 to 2.2.17 |
| mqtt.suback.qos | Granted QoS | Unsigned integer, 1 byte | 2.4.0 to 3.4.5 |
| mqtt.suback.reason_code | Reason Code | Unsigned integer, 1 byte | 2.6.0 to 3.4.5 |
| mqtt.subscription_options | Subscription Options | Unsigned integer, 1 byte | 2.6.0 to 3.4.5 |
| mqtt.subscription_options_nl | No Local | Boolean | 2.6.0 to 3.4.5 |
| mqtt.subscription_options_qos | QoS | Unsigned integer, 1 byte | 2.6.0 to 3.4.5 |
| mqtt.subscription_options_rap | Retain As Published | Boolean | 2.6.0 to 3.4.5 |
| mqtt.subscription_options_reserved | Reserved | Unsigned integer, 1 byte | 2.6.0 to 3.4.5 |
| mqtt.subscription_options_retain | Retain Handling | Unsigned integer, 1 byte | 2.6.0 to 3.4.5 |
| mqtt.topic | Topic | Character string | 1.12.0 to 3.4.5 |
| mqtt.topic_len | Topic Length | Unsigned integer, 2 bytes | 2.4.0 to 3.4.5 |
| mqtt.unknown_topic_alias | Unknown topic alias | Label | 3.4.0 to 3.4.5 |
| mqtt.unknown_version | Unknown version (missing the CONNECT packet?) | Label | 3.4.0 to 3.4.5 |
| mqtt.unsuback.reason_code | Reason Code | Unsigned integer, 1 byte | 2.6.0 to 3.4.5 |
| mqtt.username | User Name | Character string | 1.12.0 to 3.4.5 |
| mqtt.username_len | User Name Length | Unsigned integer, 2 bytes | 2.4.0 to 3.4.5 |
| mqtt.ver | Version | Unsigned integer, 1 byte | 1.12.0 to 3.4.5 |
| mqtt.will_properties | Will Properties | Label | 3.0.0 to 3.4.5 |
| mqtt.willmsg | Will Message | Sequence of bytes | 1.12.0 to 3.4.5 |
| mqtt.willmsg_len | Will Message Length | Unsigned integer, 2 bytes | 2.4.0 to 3.4.5 |
| mqtt.willmsg_text | Will Message | Character string | 3.2.0 to 3.4.5 |
| mqtt.willtopic | Will Topic | Character string | 1.12.0 to 3.4.5 |
| mqtt.willtopic_len | Will Topic Length | Unsigned integer, 2 bytes | 2.4.0 to 3.4.5 |
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