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SMF Type 119 Record - Subtype 6

This table shows the record layout for type 119 SMF records
(TCP/IP Statistics - Interface Statistics 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 6 Interface statistics record is collected at user specified intervals. The record provides data about user-defined interfaces (LINK or INTERFACE statements), one interface specific section per defined interface. Only non-VIPA and non-loopback interfaces are included in the SMF record, and any interface in the process of being deleted from the stack at the time of interval reporting is likewise ignored. Each interface specific section reports statistical data about the interface for the previous recording interval. To determine a cumulative value for a given statistic reported, the user must sum the values reported for the statistic in the individual Interface statistics interval records. If interface statistics recording is turned off dynamically, or the TCP stack terminates, a final interface statistics record is generated to report close-out data. If a given LINK or INTERFACE statement is deleted during a recording interval, any data related to that interface during the recording interval is lost (for example, is not reported in the next interval record). Depending on the number of interfaces, this report can be spread across multiple records, in which case the self-defining section for each record specifies the content layout of that particular record. There is no Type 118 record equivalent to the link interface statistics record.

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

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SMF Type 119 Record -- TCP/IP Statistics - Interface Statistics Record
Offset
(Dec.)
Offset
(Hex)
NameLengthFormatDescription
00SMF119LEN2binary
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.
22SMF119SEG2binary
Segment descriptor (see record length field).
44SMF119FLG1binary
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.
55SMF119RTY1binary
Record type 119 (X'77').
66SMF119TME4binary
Time since midnight, in hundredths of a second, that the record was moved into the SMF buffer.
10ASMF119DTE4packed
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.
14ESMF119SID4EBCDIC
System identification (from the SMFPRMxx SID parameter).
1812SMF119SSI4EBCDIC
Subsystem identification.
2216SMF119STY2binary
Record subtype.
Self Defining Section
2418SMF119TRN2binary
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.
261A--2binary
Reserved.
281CSMF119IDOff4binary
Offset to TCP/IP identification section from RDW.
3220SMF119IDLen2binary
Length of TCP/IP identification section.
3422SMF119IDNum2binary
Number of TCP/IP identification sections.
3624SMF119S1Off4Binary
Offset to first data section
4028SMF119S1Len2Binary
Length of first data section
422ASMF119S1Num2Binary
Number of first data sections
442CSMF119S2Off4Binary
Offset to 2nd data section
4830SMF119S2Len2Binary
Length of 2nd data section
5032SMF119S2Num2Binary
Number of 2nd data sections
TCP/IP Identification Section

For the interface statistics record, the TCP/IP stack identification section indicates IP as the subcomponent and one of the six possible interval record reason settings, depending on if the reporting is due to interval expiration, statistics collection termination, or collection shutdown, and whether one or more physical records are needed to report all the interface statistics.

(Offset from beginning of record: SMF119IDOff)
00SMF119TI_
SYSName
8EBCDIC
System name from SYSNAME in IEASYSxx
88SMF119TI_
SysplexName
8EBCDIC
Sysplex name from SYSPLEX in COUPLExx
1610SMF119TI_
Stack
8EBCDIC
TCP/IP stack name
2418SMF119TI_
ReleaseID
8EBCDIC
z/OS Communications Server TCP/IP release identifier
3220SMF119TI_
Comp
8EBCDIC
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
4028SMF119TI_
ASName
8EBCDIC
Started task qualifier or address space name of address space that writes this SMF record
4830SMF119TI_
UserID
8EBCDIC
User ID of security context under which this SMF record is written
5638--2EBCDIC
Reserved
583ASMF119TI_
ASID
2Binary
ASID of address space that writes this SMF record
603CSMF119TI_
Reason
1Binary
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
613D--3EBCDIC
Reserved
Subtype 6 - Interface statistics specific record (one per LINK or INTERFACE definition)
(Offset from beginning of record: SMF119S1Off)
00SMF119SP_
IFDuration
8Binary
Duration of recording interval in microseconds, where bit 51 is equivalent to one microsecond
88SMF119IS_
IFLnkHome
16Binary
Interface HOME address. For IPv6 interfaces, additional addresses might be specified in subsequent HOME IP address sections.
2418SMF119IS_
IFName
16EBCDIC
Link or interface name
4028SMF119IS_
IFDevName
16EBCDIC
Device name
5638SMF119IS_
IFDesc
18EBCDIC
Interface Description (TCPIP PROFILE keyword for LINK or INTERFACE type.) Possible values include: ATM, CDLC, CTC, ETHERnet, ETHEROR802.3, FDDI, HCH, IBMTR, IP, IPAQENET, IPAQIDIO, IPAQTR, MPCPTP, OSAENET, OSAFDDI, SAMEHOST, Unknown, 802.3, IPAQENET6, IPAQIDIO6, and MPCPTP6
744A--2Binary
Reserved
764CSMF119IS_
IFActualMtu
4Binary
MTU size
8050SMF119IS_
IFSPeed
4Binary
Speed
Guideline: If the interface speed exceeds x'FFFFFFFF', then this field contains x'FFFFFFFF'. If this field contains x'FFFFFFFF', then use the SMF119IS_IFHSpeed field to determine the interface speed.
8454SMF119IS_
IFHSpeed
4Binary
HSpeed
8858SMF119IS_
IFInBytes
8Binary
Number of inbound bytes
9660SMF119IS_
IFInUniC
8Binary
Number of inbound Unicast packets
10468SMF119IS_
IFInBroadC
8Binary
Number of inbound broadcast packets
11270SMF119IS_
IFInMultiC
8Binary
Number of inbound multicast packets
12078SMF119IS_
IFInDisc
4Binary
Number of inbound discarded packets
1247CSMF119IS_
IFInError
4Binary
Number of inbound packets in error
12880SMF119IS_
IFInUProt
4Binary
Number of inbound packets with unknown protocol.
13284SMF119IS_
IFOutBytes
8Binary
Number of outbound bytes
1408CSMF119IS_
IFOutUniC
8Binary
Number of outbound Unicast packets
14894SMF119IS_
IFOutBroadC
8Binary
Number of outbound broadcast packets
1569CSMF119IS_
IFOutMultiC
8Binary
Number of outbound multicast packets
164A4SMF119IS_
IFOutDisc
4Binary
Number of outbound discarded packets
168A8SMF119IS_
IFOutError
4Binary
Number of outbound packets in error
172ACSMF119IS_
IFOQL
4Binary
Current output queue length
176B0SMF119IS_
IFIQDXName
16EBCDIC
For IPAQENET and IPAQENET6 interfaces that are defined with CHPIDTYPE OSX and with an associated IQDX interface, this field is the associated IQDX interface name. Otherwise, this field is blank and the following four counters are not valid.
192C0SMF119IS_
IFInIQDXBytes
8Binary
Number of inbound bytes that were received over the associated IQDX interface. This field is valid only if the SMF119IS_IFIQDXName field is not blank.
200C8SMF119IS_
IFInIQDXUniC
8Binary
Number of inbound unicast packets that were received over the associated IQDX interface. This field is valid only if the SMF119IS_IFIQDXName field is not blank.
208D0SMF119IS_
IFOutIQDXBytes
8Binary
Number of outbound bytes that were sent over the associated IQDX interface. This field is valid only if the SMF119IS_IFIQDXName field is not blank.
216D8SMF119IS_
IFOutIQDXUniC
8Binary
Number of outbound unicast packets that were sent over the associated IQDX interface. This field is valid only if the SMF119IS_IFIQDXName field is not blank.
224E0SMF119IS_
IFPNetID
16EBCDIC
Physical network ID. This field is valid for only IPAQENET and IPAQENET6 interfaces that are active for Shared Memory Communications over RDMA (SMC-R).
Subtype 6 - HOME IP Address section:
(Offset from beginning of record: SMF119S2Off)
00SMF119IS_
IFAddIntfName
16EBCDIC
Interface name, used to correlate this additional address to the interface statistics record in Table 169
1610SMF119IS_
IFAddIntfHome
16Binary
Additional interface HOME address

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

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.

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Pacific Systems Group.
All rights reserved.


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