OW36731: TDUS FLOW FROM ANYNET DLUR TO VTAM DLUS

APAR status

• Closed as fixed if next.

Error description

• When VTAM DLUS is connected to an ANYNET DLUR, the DLUR sends
  TDUs to VTAM.  These TDUs are just discarded because an ANYNET
  attached DLUR appears to VTAM as a LEN device.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All using DLUR/DLUS with ANYNET SNA over IP. *
  ****************************************************************
  * PROBLEM DESCRIPTION: TDUs are flowing from an ANYNET         *
  *                      attached DLUR to the DLUS.              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  An ANYNET attached DLUR is considered to be LEN to the VTAM
  DLUS, and as such the TDUs are of no use.  They should not be
  sent to the VTAM DLUS.
  When the VTAM DLUS detects that the DLUR is connected using
  ANYNET (LEN), it will indicate no TDU support in the 51 vector.
  The DLUR (as of EP24825) will not send TDUs to the DLUS if the
  TDU support indicator in the CV 51 is off.
  
  These changes (DLUS and DLUR) are supported by AMB item 8445.
  

Problem conclusion

Temporary fix

Comments

• When the VTAM DLUS detects that the DLUR is connected using
  ANYNET (LEN), it will indicate no TDU support in the 51 vector.
  The DLUR (as of EP24825) will not send TDUs to the DLUS if the
  TDU support indicator in the CV 51 is off.
  
  These changes (DLUS and DLUR) are supported by AMB item 8445.
  

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

Applicable component levels

• R301 PSN

     UP

• R401 PSN

     UP

• R411 PSN

     UP

• R501 PSN

     UP

• R701 PSN

     UP