Logical Link Control (LLC)

Logical Link Control (LLC)

LLC protocol data units (PDUs) contain addressing information that consists of two fields; the Destination Service Access Point (DSAP) address field, and the Source Service Access Point (SSAP) address field. Each of these is an 8-bit field and made up of two components.

An individual actual address values does not necessarily have any relationship with group address of the same actual address.

Registration Fees

Product Fees
Logical Link Control N/A
IEEE does not accept requests for applicant-specified identifiers.

Application Information

  1. Complete and electronically submit the LLC application via fax or mail along with an attached explanatory statement detailing the intended use of the LLC assignment. Applications expire after 30 days.
  2. Any questions regarding your application will be sent to the REQUESTOR.
  3. Applications are reviewed within 150 days and additional clarification may be required by our review committee.
  4. Once the application has been approved, it will be processed within 7 business days. Assignment details are sent to the REQUESTOR.

The terms, namely; address type designation bit, command/response identifier bit and actual address are defined in ISO/IEC 8802-2. See ISO/IEC 8802-2 clause items (2), (3), and (4). The format of LLC addresses is defined in ISO/IEC 8802-2. For more information refer to Annex A in the 11802-1 technical report.

Related Standards

  • ISO/IEC 8802-2
  • ISO/IEC 11802-1
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