KN3 Profile TCP Config attributes

Use the Profile TCP Configuration table to display operating characteristics of the TCP/IP stack as specified in the TCPCONFIG statement.

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:

CONNECTINITINTERVAL Controls the initial retransmission interval (in milliseconds). A valid value is an integer. A value of 0 indicates "n/a".

CONNECTTIMEOUT Controls the seconds before the initial connection times out, including TCP connections that are established over SMC-R links. A valid value is an integer. A value of 0 indicates "n\a".

DELAYACKS Controls acknowledgments when a packet is received with the PUSH bit on in the TCP header. The behavior may be overridden by PORT or BEGINROUTES statements in the profile dataset, or by Policy Agent and OMPROUTE statements. Possible values include:

A valid value is an integer. Values appear on the workspace as follows:

EPHEMERALPORTS Begin Specifies the starting port of the range of ephemeral ports that are to be assigned at bind time. A valid value is an integer.

EPHEMERALPORTS End Specifies the last port of the range of ephemeral ports that are to be assigned at bind time. A valid value is an integer.

FINWAIT2TIME Controls the number of seconds a TCP connection remains in the FINWAIT2 state. A valid value is an integer.

FRRTHRESHOLD retransmit and fast recovery function (FRR). A valid value is an integer.

INTERVAL The default TCP keepalive interval for applications that enable the SO_KEEPALIVE socket option and do not override the interval using the TCP_KEEPALIVE socket option. A valid value is an integer.

KEEPALIVEPROBEINTERVAL The time in seconds between keepalive probes. A valid value is an integer.

KEEPALIVEPROBES Controls the number of keepalive probes before the connection is aborted. A valid value is an integer.

MAXIMUMRETRANSMITTIME Controls the maximum retransmit interval in seconds if no route parameter has been specified. A valid value is an integer.

NAGLE Controls use of the Nagle algorithm. Possible values include:

A valid value is an integer. Values appear on the workspace as follows:

Origin Node The unique identifier for the TCP/IP stack being displayed. A valid value is a string of up to 32 characters.

QUEUEDRTT Controls when the stack considers a connection eligible for outbound serialization. The value is in milliseconds. A value of 0 indicates the connection is always eligible for outbound serialization, otherwise the round trip time (RTT) must equal or exceed the specified value to be eligible for outbound serialization. A valid value is an integer.

RESTRICTLOWPORTS Controls when ports 1- 1023 are reserved for users by the PORT and PORTRANGE statements. Possible values include:

A valid value is an integer. Values appear on the workspace as follows:

RETRANSMITATTEMPTS Limit to the number of retransmits attempted. When the limit is reached and times out, the connection is aborted. A valid value is an integer.

SELECTIVEACK Controls the exchange of selective acknowledgements during connection setup and also during the entire connection. Possible values include:

A valid value is an integer. Values appear on the workspace as follows:

SENDGARBAGE Controls whether the keepalive packets sent by TCP contain 1 byte of random data. Possible values include:

A valid value is an integer. Values appear on the workspace as follows:

Sysplex Name The name of the sysplex that this LPAR is a member of. A valid value is a string of up to 8 characters.

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.

TCPIP STC Name The TCP/IP started task name. A valid value is a string of up to 8 characters.

TCPMAXRCVBUFRSIZE The maximum value an application can set as its receive buffer size using SETSOCKOPT(). A valid value is an integer.

TCPMAXSENDBUFRSIZE Controls maximum send buffer size, which is between the value that is specified on the TCPSENDBUFRSIZE parameter and 2 MB. A valid value is an integer.

TCPRCVBUFRSIZE Controls the TCP receive buffer size when applications do not explicitly set the buffer using SETSOCKOPT(). A valid value is an integer.

TCPSENDBFRSIZE Controls the TCP send buffer size. A valid value is an integer.

TCPTIMESTAMP Controls the TCP Timestamp Option. Possible values include:

A valid value is an integer. Values appear on the workspace as follows:

TIMEWAITINTERVAL The number of seconds that a connection remains in the TIMEWAIT state. A valid value is an integer.

TTLS Controls the Application Transparent Transport Layer Security (AT-TLS) function. Possible values include:

A valid value is an integer. Values appear on the workspace as follows: