Use the TCPIP Applications attributes to measure performance statistics for the TCP/IP applications that were active when the last sampling interval ended.
Accepted Connections The total number of connections that were accepted by this application during the most recent interval. The format is an integer.
Active Connections The number of current connections. The format is an integer.
Active Connection High Water Mark The high-water mark (the highest value recorded for this listener in the active connections field) for active connections. The format is an integer.
Application Name The job name associated with the application address space that opened and bound the socket. The format is an alphanumeric string no longer than 8 characters.
Backlog Connections Rejected The total number of connections that were rejected during the most recent time interval because the backlog limit was exceeded before the application was able to accept the waiting connections. z/OS Communications Server rejects a new connection when the number of connections waiting to be accepted exceeds the backlog limit for a listener. The format is an integer.
Backlog Connections Rejected Time Stamp The date and time that a connection was most recently rejected because the backlog limit was exceeded. The format of date and time is determined by the date and time formats specified in User Preferences. The time stamp reflects the time zone specified in User Preferences. This time is stored as a string no longer than 16 characters in the format CYYMMDDHHMMSSmmm (as in 1020315064501000 for 03/15/02 06:45:01) where:
When no connections have been rejected, this value is stored as a character string of zeros and displayed as blank.
Byte Rate The number of bytes (both sent and received), per minute, during the most recent time interval. The format is an integer.
Bytes Received The number of bytes received on all connections for this application that existed at the end of the most recent time interval. The format is an integer.
Bytes Sent The number of bytes sent on all connections for this application that existed at the end of the most recent time interval. The format is an integer.
Bytes Sent or Received The number of bytes sent or received on all connections for this application that existed at the end of the most recent time interval. The format is an integer.
Collection Time The time and date of the data sampling. This time is displayed in the following format:
mm/dd/yy hh:mm:ss
Where:
The stored format is a string no longer than 16 characters in the format CYYMMDDHHMMSSmmm (as in 1020315064501000 for 03/15/02 06:45:01) where:
Connection Count The number of connections established for this application at the end of the most recent interval. This number represents the total number of rows in the TCP Connections table, the UDP Endpoints table, and the TCP Listener table associated with this application. The format is an integer.
Connection Rate The number of connections that were accepted, per minute, during the most recent time interval. The format is an integer.
Connections in Backlog The current number of connections that are in backlog. Connections in backlog are waiting to be accepted. The format is an integer.
Datagram Rate The average number of datagrams (both sent and received), per minute, for this application during the most recent time interval. The average is derived by dividing all datagrams transmitted or received during the current interval by the size of the interval. The format is an integer.
Datagrams Discarded The number of received datagrams that were discarded because a receive queue limit was exceeded during the most recent interval. The format is an integer.
Datagrams Queued The number of datagrams that are in the read queue. The format is an integer.
Datagrams Received The number of datagrams received during the most recent time interval. The format is an integer.
Datagrams Sent The number of datagrams sent during the most recent time interval. The format is an integer.
Datagrams Sent or Received The total number of datagrams (both sent and received) during the most recent time interval. The format is an integer.
Host Name The host name of the TCP/IP stack. The format is an alphanumeric string up to 255 characters in length.
Idle Time Since Last Accept The amount of time, in hours, that the server has been idle since the most recent connection was accepted. This value is displayed as a real number.
Origin Node The unique identifier for the TCP/IP stack being displayed. The format is an alphanumeric string no longer than 32 characters.
Out of Order Segments The number of TCP data segments received that did not contain the next expected sequence number during the most recent time interval. The format is an integer.
Percent Datagrams Discarded The percentage of received datagrams that was discarded because a receive queue limit was exceeded during the most recent time interval. The range for this value is from 0% to 100%.
Percent Out of Order Segments The percentage of segments received that did not contain the next expected sequence number during the most recent time interval. The range for this value is from 0% to 100%.
Percent Segments Retransmitted The percentage of TCP segments that was retransmitted during the most recent time interval. The range for this value is from 0% to 100%.
Queued Datagram Bytes The number of data bytes that are in the datagrams in the read queue. The format is an integer.
Receive Byte Rate The number of bytes that was received, per minute, during the most recent time interval. The format is an integer.
Receive Datagram Rate The number of datagrams that was received, per minute, during the most recent time interval. The format is an integer.
Receive Segment Rate The number of segments that was received, per minute, during the most recent time interval. The format is an integer.
Retransmission Rate The number of segments that was retransmitted, per minute, during the most recent time interval. The format is an integer.
Segment Rate The number of segments (both sent and received), per minute, during the most recent time interval. The format is an integer.
Segments Received The number of segments received during the most recent time interval. This number includes the segments received on currently established connections and segments received in error. The format is an integer.
Segments Retransmitted The number of segments retransmitted during the most recent time interval. The format is an integer.
Segments Sent The number of segments sent during the most recent time interval. This number includes the segments on current connections, and excludes those segments that contain only retransmitted octets. The format is an integer.
Segments Sent or Received The total number of segments that was sent or received during the most recent time interval. This number includes the segments on current connections, and segments received in error. This number excludes those segments that contain only retransmitted octets. The format is an integer.
Server Up Time The amount of time, in hours, that the listener has been active. The format is a real number.
Sysplex Name The name of the sysplex that the monitored system is part of. The format is a string of up to 8 characters.
System ID The SMF system ID. The format is an alphanumeric string no longer than 4 characters.
TCPIP STC Name The name of the TCP/IP job. The format is an alphanumeric string no longer than 8 characters.
Time Since Last Activity The average time, in seconds, since the most recent activity on all connections for this application that existed at the end of the most recent time interval. The format is a real number.
Time Stamp for Active Connections High Water Mark The date and time during which the value for the high-water mark (or highest value) was recorded. This time is displayed in the following format:
mm/dd/yy hh:mm:ss
Where:
The stored format is a string no longer than 16 characters in the format CYYMMDDHHMMSSmmm (as in 1020315064501000 for 03/15/02 06:45:01) where:
When the application has had no active connections, this value is stored as a character string of zeros and displayed as blank.
Total Backlog Connections Rejected The total number of connections rejected because the backlog limit was exceeded before the listener was able to accept the waiting connections. z/OS Communications Server rejects a new connection when the number of connections waiting to be accepted exceeds the backlog limit for a listener. The format is an unsigned integer.
Total Bytes The total number of bytes (both received and sent) on all connections that was active at the end of the most recent time interval for this application. When the value in the Total Bytes field exceeds 1,073,741,823 (1 GB), the number is divided by 1,073,741,824. The quotient is stored in the Total Bytes (in GB) field and the remainder is stored in the Total Bytes field. The format is an integer.
Total Bytes (in GB) The total number of bytes (both sent and received) on all connections that was active at the end of the most recent time interval for this application, divided by 1,073,741,824. When the value in the Total Bytes field exceeds 1,073,741,823 (1 GB), the number is divided by 1,073,741,824. The quotient is stored in the Total Bytes (in GB) field and the remainder is stored in the Total Bytes field. The format is an integer.
Total Bytes Received The total number of bytes received on all connections that was active at the end of the most recent time interval for this application. When the value in the Total Bytes Received field exceeds 1,073,741,823 (1 GB), the number is divided by 1,073,741,824. The quotient is stored in the Total Bytes Received (in GB) field and the remainder is stored in the Total Bytes Received field. The format is an integer.
Total Bytes Received (in GB) The total number of bytes received on all connections that was active at the end of the most recent time interval for this application, divided by 1,073,741,824. When the value in the Total Bytes Received field exceeds 1,073,741,823 (1 GB), the number is divided by 1,073,741,824. The quotient is stored in the Total Bytes Received (in GB) field and the remainder is stored in the Total Bytes Received field. The format is an integer.
Total Bytes Sent The total number of bytes sent on all connections that was active at the end of the most recent time interval for this application. When the value in the Total Bytes Sent field exceeds 1,073,741,823 (1 GB), the number is divided by 1,073,741,824. The quotient is stored in the Total Bytes Sent (in GB) field and the remainder is stored in the Total Bytes Sent field. The format is an integer.
Total Bytes Sent (in GB) The total number of bytes sent on all connections that was active at the end of the most recent time interval for this application, divided by 1,073,741,824. When the value in the Total Bytes Sent field exceeds 1,073,741,823 (1 GB), the number is divided by 1,073,741,824. The quotient is stored in the Total Bytes Sent (in GB) field and the remainder is stored in the Total Bytes Sent field. The format is an integer.
Total Datagrams The total number of datagrams received or sent on all connections for this application that existed at the end of the most recent time interval. The format is an integer.
Total Datagrams Received The total number of datagrams received on all connections for this application that existed at the end of the most recent time interval. The format is an integer.
Total Datagrams Sent The total number of datagrams sent on all connections for this application that existed at the end of the most recent time interval. The format is an integer.
Total Out of Order Segments The total number of TCP data segments received that did not contain the next expected sequence number on all connections for this application that existed at the end of the most recent time interval. The format is an integer.
Total Segments The total number of segments sent and received on all connections for this application that existed at the end of the most recent time interval. The format is an integer.
Total Segments Received The total number of segments received on all connections for this application that existed at the end of the most recent time interval. The format is an integer.
Total Segments Retransmitted The total number of segments retransmitted on all connections for this application that existed at the end of the most recent time interval. The format is an integer.
Total Segments Sent The total number of segments sent on all connections for this application that existed at the end of the most recent time interval. The format is an integer.
Transmit Byte Rate The number of bytes that was transmitted, per minute, during the most recent time interval. The format is an integer.
Transmit Datagram Rate The number of datagrams that was transmitted, per minute, during the most recent time interval. The format is an integer.
Transmit Segment Rate The number of segments that was transmitted, per minute, during the most recent interval. The format is an integer.