Use these attributes to view information about TCP/IP stack conditions, find and correct problems in your network, or create situations that monitor information for a selected TCP/IP stack.
Note: The values for these attributes are retrieved by using the z/OS Communications Server callable network management interface (NMI)
Application Count The number of active TCP/IP applications when the most recent time interval ended. A valid value is an integer.
Byte Rate The number of bytes received or sent, per minute, during the most recent time interval. A valid value is an integer.
Collection Interval The time, in minutes, between successive samples; the sampling interval. A valid value is an integer between 1 and 60.
The Collection Interval was set in PARMGEN by using the KN3_TCP_SAMPLE_INTERVAL parameter. The Collection Interval controls collection of all TCP/IP data plus Communication Storage Manager (CSM), Enterprise Extender (EE), and High Performance Routing (HPR) data.
Collection Time The time and date of the data sampling. This time is displayed in the following format:
mm/dd/yy hh:mm:ss (Tivoli Enterprise Portal) or yy/mm/dd hh:mm:ss (3270)
Where:
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:
Connection Count The number of TCP/IP connections. This number represents the total number of rows in the TCP Connections table, the UDP Endpoints table, and the TCP Listener table. A valid value is an integer.
CPU Percentage The percentage of CPU in use when the sampling interval ended. A valid value is an integer. The range for this value is from 0 to 100.
CSA Percent Below 16MB The percentage of Common System Area (CSA) storage below the 16MB line in use when the last sampling interval ended. A valid value is an integer. The range for this value is from 0 to 100.
CSA Usage Below 16MB The amount of Common System Area (CSA) storage below the 16MB line in use when the last sampling interval ended. A valid value is an integer.
Device Count The number of devices defined for the TCP/IP stack. A valid value is an integer.
Fragmentation Count The number of IP segments requiring fragmentation that were successfully fragmented. A valid value is an integer.
Note: Segments require fragmentation when they are too large for the next network hop.
Fragmentation Failure Percentage The percentage of IP segments requiring fragmentation that were not successfully fragmented. A valid value is an integer.
Fragmentation Failures The number of IP segments requiring fragmentation that were not successfully fragmented. A valid value is an integer.
Fragmentation Percentage The percentage of IP segments successfully fragmented since TCP/IP initialization. A valid value is an integer.
Gateway Count The number of gateways defined for the TCP/IP stack. Gateways are routers to other physical networks. A valid value is an integer.
Host IP Address The IP address of the host. A valid value is a string of up to 45 characters.
Host IP Address (IPv4 only) The IP address of the host. A valid value is a string of up to 15 characters. This is set only if the character representation of the host's IP address fits within 15 characters. This attribute is not displayed by default.
Host Name The host name of the TCP/IP stack. A valid value is a string of up to 255 characters.
Input Discard Percentage The percentage of IP segments this TCP/IP address space received from the network that were undeliverable and therefore discarded. A valid value is an integer.
Input Discards The number of IP segments this TCP/IP address space received that were undeliverable and therefore discarded since TCP/IP initialization. A valid value is an integer.
Reasons for discarding input segments include the following:
Input Packet Count (deprecated) The number of IP packets (including those received in error) that this TCP/IP address space received from the network since TCP/IP initialization. When the value in the Input Packet Count field exceeds 1,073,741,823 (1 GB), the number is divided by 1,073,741,824. The quotient is stored in the Input Packet Count (In G) field and the remainder is stored in the Input Packet Count field. A valid value is an integer.
Input Packet Count (in G) (deprecated) The number of IP packets (including those received in error) that this TCP/IP address space received from the network since TCP/IP initialization, divided by 1,073,741,824. When the value in the Input Packet Count field exceeds 1,073,741,823 (1 GB), the number is divided by 1,073,741,824. The quotient is stored in the Input Packet Count (in G) field and the remainder is stored in the Input Packet Count field. A valid value is an integer.
Input Packets Since TCP/IP initialization, the number of IP packets that this TCP/IP address space received from the network. A valid value is a long long integer.
Interface Count The number of interfaces defined for the TCP/IP stack. A valid value is an integer.
Origin Node The unique identifier for the TCP/IP stack being displayed. A valid value is a string of up to 32 characters.
Output Discard Percentage The percentage of all IP output segments from this TCP/IP address space that were undeliverable and therefore discarded. A valid value is an integer.
Output Discards The number of IP segments this address space did not send and therefore discarded since TCP/IP initialization. A valid value is an integer.
Reasons for discarding output segments include the following:
Output Packet Count (deprecated) The number of IP packets that local IP user-protocols supplied to IP since TCP/IP initialization. When the value in the Output Packet Count field exceeds 1,073,741,823 (1 GB), the number is divided by 1,073,741,824. The quotient is stored in the Output Packet Count (In G) field and the remainder is stored in the Output Packet Count field. A valid value is an integer.
Output Packet Count (in G) (deprecated) The number of IP packets that local IP user-protocols supplied to IP since TCP/IP initialization, divided by 1,073,741,824. When the value in the Output Packet Count field exceeds 1,073,741,823 (1 GB), the number is divided by 1,073,741,824. The quotient is stored in the Output Packet Count (in G) field and the remainder is stored in the Output Packet Count field. A valid value is an integer.
Output Packets Since TCP/IP initialization, the number of IP packets that this TCP/IP address space sent to the network. A valid value is a long long integer.
Paging Rate The paging rate when the most recent time interval ended. A valid value is an integer. The range for this value is from 0 to 100.
Reassembly Count The number of IP segments received that were successfully reassembled since TCP/IP initialization. A valid value is an integer.
Reassembly Failure Count The number of IP segments requiring reassembly that were not reassembled since TCP/IP initialization. A reassembly fails when all segments that compose the fragmented datagram are not received. A valid value is an integer.
Reassembly Failure Percentage The percentage of IP segments requiring reassembly that were not reassembled. A reassembly fails when all segments that compose the fragmented datagram are not received. A valid value is an integer.
The percentage is calculated as follows:
(Reassembly Failure Pct) = (Reassembly Failures) divided by (Reassemblies Requested)
Reassembly Percentage The percentage of IP segments that were reassembled since TCP/IP initialization. A valid value is an integer.
System ID The System Management Facility (SMF) system identifier for the z/OS system where the OMEGAMON for Networks monitoring agent collected the data. A valid value is a string of up to 4 characters.
TCP Input Segment Count (deprecated) The count of TCP segments this TCP/IP address space received from the network since TCP/IP initialization. When the value in the TCP Input Segment Count field exceeds 1,073,741,823 (1 GB), the number is divided by 1,073,741,824. The quotient is stored in the TCP Input Segment Count (in G) field and the remainder is stored in the TCP Input Segment Count field. A valid value is an integer.
TCP Input Segment Count (in G) (deprecated) The count of TCP segments this TCP/IP address space received from the network since TCP/IP initialization, divided by 1,073,741,824. When the value in the TCP Input Segment Count field exceeds 1,073,741,823 (1 GB), the number is divided by 1,073,741,824. The quotient is stored in the TCP Input Segment Count (in G) field and the remainder is stored in the TCP Input Segment Count field. A valid value is an integer.
TCP Input Segments The count of TCP segments that this TCP/IP address space received from the network since TCP/IP initialization. A valid value is a long long integer.
TCP Output Segment Count (deprecated) The count of TCP segments this TCP/IP address space delivered to the network since TCP/IP initialization. When the value in the TCP Output Segment Count field exceeds 1,073,741,823 (1 GB), the number is divided by 1,073,741,824. The quotient is stored in the TCP Output Segment Count (in G) field and the remainder is stored in the TCP Output Segment Count field. A valid value is an integer.
TCP Output Segment Count (in G) (deprecated) The count of TCP segments this TCP/IP address space delivered to the network since TCP/IP initialization, divided by 1,073,741,824. When the value in the TCP Output Segment Count field exceeds 1,073,741,823 (1 GB), the number is divided by 1,073,741,824. The quotient is stored in the TCP Output Segment Count (in G) field and the remainder is stored in the TCP Output Segment Count field. A valid value is an integer.
TCP Output Segments The count of TCP segments that this TCP/IP address space delivered to the network since TCP/IP initialization. A valid value is a long long integer.
TCP Retransmit Percentage The percentage of TCP segments that required retransmission. A TCP segment is retransmitted whenever the receiver does not acknowledge receipt, and a timeout occurs. A valid value is an integer.
The percentage is calculated as follows:
(TCP Retransmit Pct) = (Retransmitted TCP Segments) divided by (TCP Segments Out)
TCP Retransmitted Segments The number of TCP segments this host retransmitted since TCP/IP initialization. A segment is retransmitted whenever the receiver does not acknowledge receipt, and a timeout occurs. A valid value is an integer.
TCP Session Count The number of TCP sessions currently established to this TCP/IP address space. A valid value is an integer.
TCPIP STC Name The TCP/IP started task name. A valid value is a string of up to 8 characters.
Telnet Connection Count The number of Telnet connections. A valid value is an integer.
Telnet Pool Percentage The percentage of Telnet pool entries in use. A valid value is an integer.
Telnet Pool Size The number of entries in the Telnet pool. Each Telnet user is allocated one entry from the pool. When the pool is exhausted, no new Telnet sessions can be started. A valid value is an integer.
Telnet Session Count The number of Telnet connections that are currently in session with an application. A valid value is an integer.
Total CSA Percentage The percentage of Common System Area (CSA) used when the last sampling interval ended. A valid value is an integer. The range for this value is from 0 to 100.
Total CSA Usage The total amount of Common System Area (CSA) used when the last sampling interval ended. A valid value is an integer.
UDP Discard Percentage The percentage of user datagram protocol (UDP) datagrams discarded as undeliverable because they were received in error (including No Port Found errors). A valid value is an integer.
The percentage is calculated as:
(UDP Discard Pct) = (UDP No Port Errors + UDP Other Errors) divided by (UDP Datagrams Received)
UDP Input Datagram Count (deprecated) The number of user datagram protocol (UDP) datagrams received since TCP/IP initialization. When the value in the UDP Input Datagram Count field exceeds 1,073,741,823 (1 GB), the number is divided by 1,073,741,824. The quotient is stored in the UDP Input Datagram Count (in G) field and the remainder is stored in the UDP Input Datagram Count field. A valid value is an integer.
UDP Input Datagram Count (in G) (deprecated) The number of user datagram protocol (UDP) datagrams received since TCP/IP initialization, divided by 1,073,741,824. When the value in the UDP Input Datagram Count field exceeds 1,073,741,823 (1 GB), the number is divided by 1,073,741,824. The quotient is stored in the UDP Input Datagram Count (in G) field and the remainder is stored in the UDP Input Datagram Count field. A valid value is an integer.
UDP Input Datagrams Since TCP/IP initialization, the number of UDP datagrams received. A valid value is a long long integer.
UDP Input Errors The number of datagrams discarded as undeliverable because they were received in error (excluding No Port Found errors) since TCP/IP initialization. A valid value is an integer.
UDP No Port Count The number of user datagram protocol (UDP) datagrams discarded as undeliverable because the port number specified did not match that of any active applications. A valid value is an integer.
UDP Output Datagram Count (deprecated) The number of datagrams this host sent since TCP/IP initialization. When the value in the UDP Output Datagram Count field exceeds 1,073,741,823 (1 GB), the number is divided by 1,073,741,824. The quotient is stored in the UDP Output Datagram Count (in G) field and the remainder is stored in the UDP Output Datagram Count field. A valid value is an integer.
UDP Output Datagram Count (in G) (deprecated) The number of datagrams this host sent since TCP/IP initialization, divided by 1,073,741,824. When the value in the UDP Output Datagram Count field exceeds 1,073,741,823 (1 GB), the number is divided by 1,073,741,824. The quotient is stored in the UDP Output Datagram Count (in G) field and the remainder is stored in the UDP Output Datagram Count field. A valid value is an integer.
UDP Output Datagrams The number of datagrams this host sent since TCP/IP initialization. A valid value is a long long integer.