An A-RELEASE-RQ PDU shall be made of a sequence of mandatory fields. Table 9-24 shows the sequence of the fields.
Table 9-24 A-RELEASE-RQ PDU FIELDS
|PDU bytes||Field name||Description of field|
|2||Reserved||This reserved field shall be sent with a value 00H but not tested to this value when received.|
|3-6||PDU-length||This PDU-length shall be the number of bytes from the first byte of the following field to the last byte of the Reserved field. In the case of this PDU, it shall have the fixed value of 00000004H encoded as an unsigned binary number.|
|7-10||Reserved||This reserved field shall be sent with a value 00000000H but not tested to this value when received.|