SMTP (PI_SMTP)

Function

The SMTP (PI_SMTP) record stores information about SMTP service response time. This is a multi-instance record.

Default and changeable values

ItemDefault valueChangeable
Collection Interval360Y
Collection Offset0Y
LogNoY
LOGIF(Blank)Y

ODBC key fields

PI_SMTP_MSR_COND_ID

Lifetime

None

Record size

Fields

View name
(Manager name)
DescriptionSummary ruleFormatDeltaData source
Data Transfer Time
(DATA_TRANS_TIME)
Data transfer time (seconds) ((7) in Figure 9-8)AVGdoubleNoProbe Daemon
DNS Time
(DNS_TIME)
DNS time (seconds) ((4) in Figure 9-8)AVGdoubleNoProbe Daemon
Preprocessing Time
(PRE_PROCESS_TIME)
Preprocessing time (seconds) ((6) in Figure 9-8)AVGdoubleNoProbe Daemon
Setup Time
(SETUP_TIME)
Setup time (seconds) ((2) in Figure 9-8)AVGdoubleNoProbe Daemon
SMTP Time
(SMTP_TIME)
SMTP time (seconds) ((3) in Figure 9-8)AVGdoubleNoProbe Daemon
TCP Connection Time
(TCP_CON_TIME)
TCP connection time (seconds) ((5) in Figure 9-8)AVGdoubleNoProbe Daemon
Throughput
(THROUGHPUT)
Throughput (bits/second). This is determined by the size of sent email and the data transfer time.AVGdoubleNoProbe Daemon
Total Amount of Data
(TOTAL_DATA_SIZE)
Total amount of data transferred between the SMTP probe and the measurement-target server via the TCP connection (bytes)AVGdoubleNoProbe Daemon
Total Response Time
(TOTAL_RESP_TIME)
Total response time (seconds) ((1) in Figure 9-8)AVGdoubleNoProbe Daemon

The following figure shows the SMTP sequence.

Figure 9-8 SMTP sequence

[Figure]

SMTP operating environment and notes

A SMTP probe creates a message text of a specified size and measures the time required for completing message transmission to the destination address.

The following describes and provides notes on a SMTP operating environment.

Subject

The subject in the measurement email header is "Test mail from PFM - Agent for Service Response.".

Text

The text for measurement emails is a character string consisting of the character o.

Attached file

The SMTP probe sends only the header and text; it does not attach any file to measurement emails.

Handling of the transmitted measurement emails

After sending measurement emails to the target server, the SMTP probe does not delete the emails. If the measurement covers a long period of time, a large number of measurement emails will accumulate, and a shortage of disk space may occur at the target mail server. To avoid this, you should use one of the following methods to delete emails periodically from the target mail server:

RFC compliance

For the functions that are not compliance with RFCs and the restrictions, see the above notes.