








	*SMF Tools*

SMF Type 119 Record - Subtype 10

This table shows the record layout for type 119 SMF records
(TCP/IP Statistics - UDP Socket Close Record).

List of other SMF record layouts available.
List of sample SMF reports.

Purpose: Transmission Control Protocol/Internet Protocol (TCP/IP) writes type 119 records to collect statistics about Telnet servers and clients, FTP servers and clients, and API activity and stack usage information.

The Subtype 10 UDP socket close record is collected whenever a UDP socket is closed (note that this is not collected for individual datagrams sent using the sendto API call). This record contains pertinent information about the socket, such as timestamps for its opening and closing, and bytes flowing through the socket.

Guidelines:

The socket's partner information is contained in this record; however, this only documents the partner at the time of socket close. Hence, this information would be more meaningful for a client UDP application than a server UDP application.
Because this record is generated for every single UDP socket, this can generate significant load on a server and rapidly fill the SMF data sets. Care should be exercised in its use.
The local IP address is 0.0.0.0 unless the application explicitly binds to a local IP address on this socket.

It's easy to report on SMF 119 data! (Jump to sample reports)

We have a low-cost 4GL report writer especially for SMF files. It's called Spectrum SMF Writer.

Spectrum SMF Writer handles the difficult SMF record parsing for you automatically. You just specify which fields you want to see.

Spectrum SMF Writer also converts the arcane date and time fields and reformats them into an attractive report.

Plus, Spectrum SMF Writer can export SMF data as comma delimited files to use on your PC.

SMF Type 119 Record -- TCP/IP Statistics - UDP Socket Close Record
Offset (Dec.)	Offset (Hex)	Name	Length	Format	Description
0	0	SMF119LEN	2	binary	Record length. This field and the next field (total of four bytes) form the RDW (record descriptor word). See “Standard SMF Record Header” on page 13-1 for a detailed description.
2	2	SMF119SEG	2	binary	Segment descriptor (see record length field).
4	4	SMF119FLG	1	binary	System indicator Bit Meaning When Set 0 New record format 1 Subtypes used 2 Reserved. 3-6 Version indicators* 7 System is running in PR/SM mode.*See “Standard SMF Record Header” on page 13-1 for a detailed description.
5	5	SMF119RTY	1	binary	Record type 119 77 .
6	6	SMF119TME	4	binary	Time since midnight, in hundredths of a second, that the record was moved into the SMF buffer.
10	A	SMF119DTE	4	packed	Date when the record was moved into the SMF buffer, in the form 0cyydddF. See “Standard SMF Record Header” on page 13-1 for a detailed description.
14	E	SMF119SID	4	EBCDIC	System identification (from the SMFPRMxx SID parameter).
18	12	SMF119SSI	4	EBCDIC	Subsystem identification.
22	16	SMF119STY	2	binary	Record subtype.
Self Defining Section
24	18	SMF119TRN	2	binary	Number of triplets in this record. A triplet is a set of three SMF fields (offset/length/number values) that defines a section of the record. The offset is the offset from the RDW.
26	1A	--	2	binary	Reserved.
28	1C	SMF119IDOff	4	binary	Offset to TCP/IP identification section from RDW.
32	20	SMF119IDLen	2	binary	Length of TCP/IP identification section.
34	22	SMF119IDNum	2	binary	Number of TCP/IP identification sections.
36	24	SMF119S1Off	4	Binary	Offset to first data section
40	28	SMF119S1Len	2	Binary	Length of first data section
42	2A	SMF119S1Num	2	Binary	Number of first data sections
TCP/IP Identification Section For the UDP socket close record, the TCP/IP Stack identification section indicates UDP as the subcomponent and X'08' (event record) as the record reason. (Offset from beginning of record: SMF119IDOff)
0	0	SMF119TI_ SYSName	8	EBCDIC	System name from SYSNAME in IEASYSxx
8	8	SMF119TI_ SysplexName	8	EBCDIC	Sysplex name from SYSPLEX in COUPLExx
16	10	SMF119TI_ Stack	8	EBCDIC	TCP/IP stack name
24	18	SMF119TI_ ReleaseID	8	EBCDIC	z/OS Communications Server TCP/IP release identifier
32	20	SMF119TI_ Comp	8	EBCDIC	TCP/IP subcomponent (right padded with blanks): FTPC FTP Client FTPS FTP server IP IP layer STACK Entire TCP/IP stack TCP TCP layer TN3270C TN3270 Client TN3270S TN3270 server UDP UDP layer
40	28	SMF119TI_ ASName	8	EBCDIC	Started task qualifier or address space name of address space that writes this SMF record
48	30	SMF119TI_ UserID	8	EBCDIC	User ID of security context under which this SMF record is written
56	38	--	2	EBCDIC	Reserved
58	3A	SMF119TI_ ASID	2	Binary	ASID of address space that writes this SMF record
60	3C	SMF119TI_ Reason	1	Binary	Reason for writing this SMF record: X'08' Event record X'C0' Interval statistics record, more records follow X'80' Interval statistics record, last record in set X'60' End-of-statistics record, more records follow X'20' End-of-statistics record, last record in set X'50' Shutdown starts record, more records follow X'10' Shutdown starts record, last record in set
61	3D	--	3	EBCDIC	Reserved
Subtype 10 - UDP socket close specific section of this SMF record(Offset from beginning of record: SMF119S1Off)
0	0	SMF119UD_ UCRname	8	EBCDIC	UDP socket resource name (address space name of address space that opens this socket)
8	8	SMF119UD_ UCConnID	4	Binary	UDP socket resource ID (connection ID)
12	C	SMF119UD_ UCSubTask	4	Binary	Subtask ID. This is the task TCB for the task owning the socket.
16	10	SMF119UD_ UCOTime	4	Binary	Time of day of socket open
20	14	SMF119UD_ UCODate	4	Packed	Date of socket open
24	18	SMF119UD_ UCCTime	4	Binary	Time of day of socket close
28	1C	SMF119UD_ UCCDate	4	Packed	Date of socket close
32	20	SMF119UD_ UCRIP	16	Binary	Remote IP of last datagram received on socket
48	30	SMF119UD_ UCLIP	16	Binary	Local IP address at time of socket close
64	40	SMF119UD_ UCRPort	2	Binary	Remote port of last datagram received on socket
66	42	SMF119UD_ UCLPort	2	Binary	Local port number at time of socket close
68	44	SMF119UD_ UCType	1	Binary	UDP Socket Type x'01': Standard x'02': Enterprise Extender
69	45	SMF119UD_ UCReason	1	Binary	Reason for socket close x'01': Normal x'02': Abnormal: application error or stack termination
70	46	--	2	Binary	Reserved
72	48	SMF119UD_ UCInDgrams	8	Binary	Number of inbound UDP datagrams
80	50	SMF119UD_ UCOutDgrams	8	Binary	Number of outbound UDP datagrams
88	58	SMF119UD_ UCInBytes	8	Binary	Number of inbound bytes
96	60	SMF119UD_ UCOutBytes	8	Binary	Number of outbound bytes

The table above is based on the description provided by IBM in its "MVS Systems Management Facilities (SMF)" manual.

Spectrum SMF Writer - the 4GL SMF Report Writer.

Sample Report from SMF 119 Subtype 2 Records
Showing Information about TCP Connections

The sample SMF report below was created with Spectrum SMF Writer, the low-cost 4GL SMF report writer.

In this report, we read as input the SMF file and select just the type 119 subtype 2 TCP Connection Termination records. (See SMF 119 Subtype 2 record layout.) The report shows information about terminated TCP connections, including start time, end time and computed elapsed time. It also shows the total number of bytes sent and received during the connection and the termination code. Our record layout also expands the 1-byte termination code into a readable descriptive text. The report is grouped by TCP/IP Stack and Resource. The report includes subtotals for each Resource.

All of this with just a few lines of code!
Why not install a Spectrum SMF Writer trial right now and start making your own SMF reports!

These Spectrum SMF Writer Statements:


INPUT:  SMF119 LIST(YES)

INCLUDEIF: SMF119RTY=119 AND SMF119STY=2

COMPUTE: MY_DURATION(2) = #MAKETIME(
               ((#MAKENUM(SMF119AP_TTEDATE) * 86400)
                  + #MAKENUM(SMF119AP_TTETIME))
             - ((#MAKENUM(SMF119AP_TTSDATE) * 86400)
                  + #MAKENUM(SMF119AP_TTSTIME))
                                   )

TITLE: 'Z/OS TCP DAILY CONNECTIONS REPORT'
TITLE: 'SYSTEM:' SMF119TI_SYSNAME
       'SYSPLEX:' SMF119TI_SYSPLEXNAME
       'STACK:' SMF119TI_STACK
TITLE: 'SORTED BY STACK AND RESOURCE NAME'

COLUMNS: SMF119AP_TTRNAME('RESOURCE')
         SMF119AP_TTSDATE('DATE/STARTED')
         SMF119AP_TTSTIME('TIME/STARTED')
         SMF119AP_TTEDATE('DATE/ENDED')
         SMF119AP_TTETIME('TIME/ENDED')
         MY_DURATION('CONNECTION/DURATION/HH:MM:SS.SS' ACCUM
                     TP'ZZ:ZZ:Z9.99')
         SMF119AP_TTINBYTES('INBOUND/BYTES')
         SMF119AP_TTOUTBYTES('OUTBOUND/BYTES')
         SMF119AP_TTTERMCODE(HEX 'TERM/CODE')
         SMF119AP_TTTERMCODE_DESC('TERM CODE DESC')

SORT:    SMF119TI_STACK
         SMF119AP_TTRNAME
         SMF119AP_TTSDATE
         SMF119AP_TTSTIME

BREAK:   SMF119AP_TTRNAME

Produce This SMF Report:


                                              Z/OS TCP DAILY CONNECTIONS REPORT
                                    SYSTEM: ST1      SYSPLEX: SYPROD    STACK: S01QDAS
                                             SORTED BY STACK AND RESOURCE NAME

                                                    CONNECTION
            DATE      TIME       DATE      TIME      DURATION      INBOUND        OUTBOUND    TERM
 RESOURCE STARTED    STARTED    ENDED      ENDED    HH:MM:SS.SS     BYTES          BYTES      CODE     TERM CODE DESC
 ________ ________ ___________ ________ ___________ ___________ ______________ ______________ ____ _______________________

 FTPTA5   03/21/09 14:04:06.81 03/21/09 14:04:07.46        0.65        257,537          3,052  61  CLIENT SENT RESET
 FTPTA5   03/21/09 14:05:35.59 03/21/09 14:05:45.67       10.08         27,043            329  52  APPL ISSUED CLOSE
 FTPTA5   03/21/09 14:12:13.81 03/21/09 14:12:14.51        0.70        257,537          3,052  61  CLIENT SENT RESET
 FTPTA5   03/21/09 14:12:27.35 03/21/09 14:12:37.42       10.07         27,043            329  52  APPL ISSUED CLOSE
 FTPTA5   03/21/09 15:30:34.96 03/21/09 15:30:35.64        0.68        257,537          3,052  61  CLIENT SENT RESET
 FTPTA5   03/21/09 15:35:13.92 03/21/09 15:35:24.00       10.08         27,043            329  52  APPL ISSUED CLOSE
 *** TOTAL FOR FTPTA5   (    6 ITEMS)                     32.26        853,740         10,143
 
 FTPTA6   03/21/09 14:05:38.03 03/21/09 14:05:38.70        0.67        257,537          3,052  61  CLIENT SENT RESET
 FTPTA6   03/21/09 14:07:23.60 03/21/09 14:07:33.68       10.08         27,043            329  52  APPL ISSUED CLOSE
 FTPTA6   03/21/09 14:12:29.83 03/21/09 14:12:30.50        0.67        257,537          3,052  61  CLIENT SENT RESET
 FTPTA6   03/21/09 14:17:10.02 03/21/09 14:17:20.16       10.14         27,043            329  52  APPL ISSUED CLOSE
 FTPTA6   03/21/09 15:35:16.45 03/21/09 15:35:17.21        0.76        257,537          3,052  61  CLIENT SENT RESET
 FTPTA6   03/21/09 15:36:15.10 03/21/09 15:36:25.18       10.08         27,043            329  52  APPL ISSUED CLOSE
 *** TOTAL FOR FTPTA6   (    6 ITEMS)                     32.40        853,740         10,143
 
 FTPTA7   03/21/09 14:07:26.16 03/21/09 14:07:26.86        0.70        257,537          3,052  61  CLIENT SENT RESET
 FTPTA7   03/21/09 14:08:24.36 03/21/09 14:08:34.50       10.14             70            507  52  APPL ISSUED CLOSE
 FTPTA7   03/21/09 14:17:12.60 03/21/09 14:17:13.31        0.71        257,537          3,052  61  CLIENT SENT RESET
 FTPTA7   03/21/09 14:21:40.01 03/21/09 14:21:50.08       10.07         27,043            329  52  APPL ISSUED CLOSE
 FTPTA7   03/21/09 15:36:17.53 03/21/09 15:36:18.17        0.64        257,537          3,052  61  CLIENT SENT RESET
 FTPTA7   03/21/09 15:37:11.45 03/21/09 15:37:21.53       10.08         27,043            329  52  APPL ISSUED CLOSE
 *** TOTAL FOR FTPTA7   (    6 ITEMS)                     32.34        826,767         10,321
 
 FTPTA8   03/21/09 08:09:32.96 03/21/09 15:29:02.41  7:19:29.45        274,763         15,912  52  APPL ISSUED CLOSE
 FTPTA8   03/21/09 13:17:39.42 03/21/09 14:42:50.82  1:25:11.40         47,498          2,291  52  APPL ISSUED CLOSE
 FTPTA8   03/21/09 14:42:57.42 03/21/09 14:43:21.38       23.96         45,921          2,291  52  APPL ISSUED CLOSE
 FTPTA8   03/21/09 14:43:26.45 03/21/09 15:28:27.01    45:00.56         47,498          2,291  52  APPL ISSUED CLOSE
 FTPTA8   03/21/09 14:50:01.00 03/21/09 15:28:26.10    38:25.10         35,513          1,537  52  APPL ISSUED CLOSE
 FTPTA8   03/21/09 14:51:01.03 03/21/09 14:52:28.82     1:27.79         33,273            875  52  APPL ISSUED CLOSE
 FTPTA8   03/21/09 14:53:05.50 03/21/09 15:28:22.53    35:17.03         33,273            875  52  APPL ISSUED CLOSE
 FTPTA8   03/21/09 14:53:51.74 03/21/09 14:55:51.42     1:59.68         35,306          1,537  52  APPL ISSUED CLOSE
 FTPTA8   03/21/09 14:56:05.98 03/21/09 15:11:31.19    15:25.21         33,066            875  52  APPL ISSUED CLOSE
 FTPTA8   03/21/09 15:12:01.80 03/21/09 15:13:30.66     1:28.86         35,266          1,537  52  APPL ISSUED CLOSE
 FTPTA8   03/21/09 15:13:45.48 03/21/09 15:17:09.41     3:23.93         38,223          2,199  52  APPL ISSUED CLOSE
 FTPTA8   03/21/09 15:18:54.59 03/21/09 15:20:07.26     1:12.67         34,273          1,537  52  APPL ISSUED CLOSE
 FTPTA8   03/21/09 15:20:22.01 03/21/09 15:28:20.73     7:58.72         33,118            875  52  APPL ISSUED CLOSE
 *** TOTAL FOR FTPTA8   (   13 ITEMS)               11:16:44.36        726,991         34,632

 
 FTPTA9   03/21/09 14:09:28.52 03/21/09 14:09:29.22        0.70        257,537          3,052  61  CLIENT SENT RESET
 FTPTA9   03/21/09 14:10:24.02 03/21/09 14:10:34.10       10.08         27,043            329  52  APPL ISSUED CLOSE
 FTPTA9   03/21/09 15:01:06.82 03/21/09 15:01:07.46        0.64        257,537          3,052  61  CLIENT SENT RESET
 FTPTA9   03/21/09 15:13:52.13 03/21/09 15:14:02.53       10.40         27,043            329  52  APPL ISSUED CLOSE

 ...

See other sample SMF reports.