IBM 3270 Manual page 275

RTM Description
When the RTM function is customized (sequence numbers 127 and 128) you
are specifying where the RTM data will be displayed (127), what will be
timed (127), the status for the host interface (128), and the boundary values
used in measuring the response times (128).
Sequence Number ·127
The first digit response to sequence number 127 determines where data will
be displayed.
Possible responses are:
• RTM is not configured.
• RTM is configured with no host support (SNA and non-SNA). On port 0
only, the operator is authorized to: (1) display RTM log information in
Test mode and (2) display the Last Transaction Time indicator. The
authorized operator may also reset the RTM data via the A4/4 test.
• RTM is configured with no host support (SNA and non-SNA). On all
ports, the operator is authorized to: (1) display RTM log information in
Test mode and (2) display the Last Transaction Time indicator. All
operators may reset the RTM data via the A4/4 test.
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• RTM is configured with host support (SNA only). No subsystem display
;\_,r)
of RTM log information or Last Transaction Time indicator is
What Will Be Timed
K-2
authorized.
• RTM is configured with host support (SNA only). On port 0 only, the
operator is authorized to: (1) display RTM log information in Test mode
and (2) display the Last Transaction Time indicator.
• RTM is configured with host support (SNA only). On all ports, the
operator is authorized to: (1) display RTM log information in Test mode
and (2) display the Last Transaction Time indicator.
Note: Authorization to display RTM log information given by the latter
three responses may be altered by the host at any time. These responses
are applicable to SNA networks only.
The second digit of the response to sequence number 127 determines what
will be measured.
Response time is measured from recognition of the inbound AID request in
the 3274 until the end of the transaction. The end-of-transaction parameter
is defined for all devices when the 3274 is customized. When the 3274 is
attached via an SNA protocol, response time is measured on the LU-LU
flow only; none is measured for the SSCP-LU session.