IST219I

Explanation
 VTAM® issues
this message when an input buffer error is detected during a READ
operation for one of the following:  Channel attached NCP nodename
Channel attached local SNA control unit nodename. 
Channel attached multipath channel (MPC) line, where nodename is
the name of the line.

 The data count field for the PIU does not match the amount of
data transferred (BYTECNT).

System action
 VTAM deactivates nodename.
 If
the node is attempting to send more data than VTAM can receive, the operating system might
 generate message IOS000I. 

Operator response
 This is probably a hardware error. Save the
system log for problem determination. Run your operating system service
aid program to determine whether MDR/OBR information has been recorded.
See the EREP User's Guide for
more information on using EREP. 
 If you use a network management
application such as NetView®,
check to determine whether an alert was recorded for this problem.

System programmer response
 If you cannot determine the cause
of the problem from the output provided or need additional assistance,
contact the IBM® hardware support
center.
 If available, provide the MDR/OBR information from
your operating system service aid program or the alert information
recorded by your network management application. 

Routing code
 2

Descriptor code
 4 