I wrote a piece of software that processed *certain SMF 119 subtypes*. They 
were all "event" type records such as a TN3270 connection, a TN3270 
disconnection, and so forth. For those purposes I was if I recall correctly 
able to utterly ignore this flag. Your mileage may vary.

An event record is cut when the event occur.

I am not familiar with shutdown subtypes. I don't mean they do not exist; just 
that I have not worked with them. "My" product was a realtime product; if you 
are interested in batch SMF reporting you might be much more interested in 
shutdown subtypes.

I am familiar with SMF 30 interval records but not SMF 119 interval records. 
Again, not saying they do not exist, just that they were not of interest to me.

I think a moral of the story is not to start from the contents of the flag byte 
but to start from "what subtypes -- what kinds of things -- am I interested in, 
does my code need to process?"

Charles


-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf 
Of Pierre Fichaud
Sent: Tuesday, March 17, 2020 6:28 AM
To: [email protected]
Subject: SMF 119 records (TCPIP)

There are many sub-types for SMF 119 (X'77').
The common identification section has a flag byte called SMF119TI_Reason with 
the following values:

X'C0' - Interval record, more records to follow
X'80' - Interval record, last record in set
X'60' - End of statistics record, more records to follow
X'40' - End of statistics record, last record in set
x'50' - Shutdown starts record, more record to follow
x'10' - Shutdown starts record, last record in set
X'48' - Events record, more records to follow
x'08' - Events record, last record in set

Is there a more detailed explanation of these values ?

Can interval records be ignored if one takes the end of statistics records ?

I guess shutdown starts records are cut when TCP/IP starts to shutdown ?

When is an event record cut ?

Can SMF119TI_RecordId be used to tie together different records of the same 
sub-type?

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