2.2.1.1.2 Extended Error Information Signature Value
The value for the Signature field that specifies the presence of extended error information in a bind_nak PDU MUST be 90740320-fad0-11d3-82d7-009027b130ab. The bind_nak PDU is as specified in [C706] section 12.6.4, and is extended as specified in section 2.2.2.9.