11-15
11 SNMP Agent
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
11-1 SNMP Agent
11
11-1-4 MIB Specifications
Ip Group: Tcp
Name Standard [(identifier) attribute]
Sup-
port
Implementation
specifications
tcpRtoAlgorithm (1) RO
The algorithm used to determine the timeout value
for resending.
Other (1): Other than the following items.
Constant (2): A constant RTO value.
Rsre (3): The algorithm specified by the MIL-
STD-1778 standard.
Vanj (4): The Van Jacobson algorithm.
Sup-
ported.
According to the
standard.
tcpRtoMin (2) RO
The minimum resend timeout value (in 0.01 s).
This value depends on the algorithm used to
determine the resend timeout value.
Sup-
ported.
According to the
standard.
tcpRtoMax (3) RO
The maximum resend timeout value (in 0.01 s).
This value depends on the algorithm used to
determine the resend timeout value.
Sup-
ported.
According to the
standard.
tcpMaxConn (4) RO
The total number of supported TCP connections.
If the maximum number of connections is
dynamic, this value is −1.
Sup-
ported.
According to the
standard.
tcpActiveOpens (5) RO
The number of times the TCP connection
changed from the CLOSE state directly to the
SYN-SENT state. (Active connection establish-
ment.)
Sup-
ported.
According to the
standard.
tcpPassiveOpens (6) RO
The number of times the TCP connection
changed from the LISTEN state directly to the
SYN-RCVD state. (Passive connection establish-
ment.)
Sup-
ported.
According to the
standard.
tcpAttemptFails (7) RO
The total number of times the TCP connection
changed from the SYN-SENT or SYN-RCVD state
directly to the CLOSE state and from the SYN-
RCVD state directly to the LISTEN state.
Sup-
ported.
According to the
standard.
tcpEstabResets (8) RO
The number of times the TCP connection
changed from the ESTABLISHED or the CLOSE-
WAIT state directly to the CLOSE state.
Sup-
ported.
According to the
standard.
tcpCurrEstab (9) RO
The total number of TCP connections currently in
the ESTABLISHED or the CLOSE-WAIT state.
Sup-
ported.
According to the
standard.
tcpInSegs (10) RO
The total number of received segments. This
includes the number of error segments.
Sup-
ported.
According to the
standard.
tcpOutSegs (11) RO
The total number of sent segments. This includes
the number of segments for the current connec-
tio
n
, but does not include the number of segments
for resent data only.
Sup-
ported.
According to the
standard.
tcpRetransSegs (12) RO
The total number of resent segments.
Sup-
ported.
According to the
standard.
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