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  1. OASIS Message Queuing Telemetry Transport (MQTT) TC
  2. MQTT-558

Short topic names allowed formats

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    Details

    • Type: Improvement
    • Status: Applied
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: MQTT-SN-1.2
    • Fix Version/s: None
    • Component/s: MQTT-SN
    • Labels:
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    • Proposal:
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      Add a new implementation section;

      7.5 Integer Formats
      Two Byte Integer data values are 16-bit unsigned integers in big-endian order: the high order byte precedes the lower order byte. This means that a 16-bit word is presented on the network as Most Significant Byte (MSB), followed by Least Significant Byte (LSB).

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      Add a new implementation section; 7.5 Integer Formats Two Byte Integer data values are 16-bit unsigned integers in big-endian order: the high order byte precedes the lower order byte. This means that a 16-bit word is presented on the network as Most Significant Byte (MSB), followed by Least Significant Byte (LSB).

      Description

      The format allows 2 octets for short topic names. The same 2 octets that are encoded as 16 bit topicIds in BE.

      When in short topic name mode, should the topicId be decoded or read as string data. Further should single char short topic names be allowed, and if so I assume they should be zero padded.

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            • Assignee:
              simon.johnson Simon Johnson [X] (Inactive)
              Reporter:
              simon.johnson Simon Johnson [X] (Inactive)
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              • Created:
                Updated:
                Resolved: