This message is the first of a group of messages that VTAM® issues when it detects an XID3 negotiation error during activation of a TCP/IP over CDLC connection. A complete description of the message group follows the example.

 IST1658I XID3 NEGOTIATION ERROR - DEVICE devicename - SENSE = code
 IST1580I  XID RECEIVED BY VTAM:
 IST1574I    offset hexdata_1 hexdata_2 hexdata_3 hexdata_4 EBCDIC_data
⋮
 IST1574I    offset hexdata_1 hexdata_2 hexdata_3 hexdata_4 EBCDIC_data
[IST1583I      BYTE OFFSET OF FIRST BYTE IN ERROR = byteoffset
 IST1584I      BIT OFFSET OF FIRST BIT IN ERROR = bitoffset]
[IST1582I    CONTROL VECTOR X'22' ANALYSIS:
 IST1583I      BYTE OFFSET OF FIRST BYTE IN ERROR = byteoffset
 IST1584I      BIT OFFSET OF FIRST BIT IN ERROR = bitoffset]
[IST1586I  XID SENT BY VTAM:
 IST1574I    offset hexdata_1 hexdata_2 hexdata_3 hexdata_4 EBCDIC_data
⋮
 IST1574I    offset hexdata_1 hexdata_2 hexdata_3 hexdata_4 EBCDIC_data]
 IST314I  END

IST1658I

• An XID3 negotiation error has been detected by VTAM during activation of a TCP/IP over CDLC connection with CDLC device devicename.

  code is the sense code and indicates the reason for the failure. See the z/OS Communications Server: IP and SNA Codes for a description of code.

IST1580I

• This message is a header for the information displayed in messages IST1574I and IST1582I through IST1586I for the XID3 received from the CDLC device.

IST1574I

• This message displays the XID3 received from (if preceded by message IST1651I) or sent to (if preceded by message IST1652I) the CDLC device.
• offset is the hexadecimal offset in the XID3.
• hexdata_1, hexdata_2, hexdata_3 and hexdata_4 each display 4 bytes of the XID3 in hexadecimal format.
• EBCDIC_data displays 16 bytes of the XID3 in EBCDIC format. Unprintable characters are represented by periods.

IST1582I

• This message is a header for the information displayed in messages IST1583I and IST1584I. Messages IST1582I through IST1584I are present only if CV X'22' is present in the XID3.

IST1583I

• byteoffset is the hexadecimal offset of the byte containing the error, as determined by the CDLC device. Offsets are from byte 0 in the XID3.

IST1584I

• bitoffset is the hexadecimal offset of the bit containing the error, as determined by the CDLC device. Offsets are from bit 0 in the XID3.

IST1586I

• This message is a header for the information displayed in message IST1574I for the XID3 sent by VTAM to the CDLC device. This message is issued only if the host either detected a mismatch between the sent XID3 and the received XID3, or if a CV X'22' is present in the received XID3.