TCP Overview (PI_TCP)
- Organization of this page
Function
The TCP Overview (PI_TCP) record stores the performance data per unit time on the number of times TCP segments were sent/received using the TCP protocol of Internet Protocol Version 4, and the number of TCP connections.
Default values and values that can be specified
Item |
Default value |
Modifiable |
---|---|---|
Collection Interval |
60 |
Yes |
Collection Offset# |
0 |
Yes |
Log |
No |
Yes |
LOGIF |
Blank |
Yes |
Over 10 Sec Collection Time |
No |
No |
Realtime Report Data Collection Mode |
Reschedule |
Yes |
- #
-
A value between 0 and 32,767 seconds can be specified (a value within the range specified for Collection Interval). Use this item to distribute the collection load, because executing data collection all at once results in concentration of the processing workload. Note that the data collection duration to be recorded is the same as the Collection Interval, regardless of the value specified for Collection Offset.
ODBC key fields
None
Lifetime
None
Record size
-
Fixed portion: 825 bytes
-
Variable portion: 0 bytes
Fields
PFM-View name (PFM - Manager name name) |
Description |
Smry |
Format |
Delta |
Not sprtd on |
Data source |
---|---|---|---|---|---|---|
Conn Failures (CONNECTION_FAILURES) |
Combined total of the number of times the TCP connection state transitioned directly from SYN-SENT or SYN-RCVD to CLOSED, and the number of times the TCP connection state transitioned directly from SYN-RCVD to LISTEN following the OS startup.# |
AVG |
ulong |
No |
-- |
-- |
Conns Active (CONNECTIONS_ACTIVE) |
Number of times the TCP connection state transitioned directly from CLOSED to SYN-SENT following the OS startup.# |
AVG |
ulong |
No |
-- |
-- |
Conns Established (CONNECTIONS_ESTABLISHED) |
Total number of TCP connections that were either in the ESTABLISHED or CLOSE-WAIT state.# |
AVG |
ulong |
No |
-- |
-- |
Conns Passive (CONNECTIONS_PASSIVE) |
Number of times the TCP connection state transitioned directly from LISTEN to SYN-RCVD following the OS startup.# |
AVG |
ulong |
No |
-- |
-- |
Conns Reset (CONNECTIONS_RESET) |
Number of times the TCP connection state transitioned directly from ESTABLISHED or CLOSE-WAIT to CLOSED following the OS startup.# |
AVG |
ulong |
No |
-- |
-- |
Interval (INTERVAL) |
Collection interval time in which records were stored (in seconds). For a real-time report, the first value is 5. If records are summarized into a historical report, the total of the summarized records is displayed. |
ADD |
ulong |
No |
-- |
RECORD_TIME (T1) - RECORD_TIME (T0) |
Record Time (RECORD_TIME) |
Time at which the record was created. |
COPY |
time_t |
No |
-- |
-- |
Record Type (INPUT_RECORD_TYPE) |
Record name. Always TCP. |
COPY |
char (8) |
No |
-- |
-- |
Segments Rcvd/sec (SEGMENTS_RECEIVED_PER_SEC) |
Rate at which segments were received (segments/second). Includes those received in error and those that are on the established connection. |
AVG |
float |
No |
-- |
-- |
Segments Retransmitted/sec (SEGMENTS_RETRANSMITTED_PER_SEC) |
Rate at which segments containing 1-byte or larger data that was transferred before were re-transferred (segments/second). |
AVG |
float |
No |
-- |
-- |
Segments Sent/sec (SEGMENTS_SENT_PER_SEC) |
Rate at which segments were sent (segments/second). Includes connected segments but does not include segments containing resent bytes. |
AVG |
float |
No |
-- |
-- |
Segments/sec (SEGMENTS_PER_SEC) |
Rate at which TCP segments were sent/received using the TCP protocol (segments/second). |
AVG |
float |
No |
-- |
-- |