Web Service Object

The TCP performance object consists of counters that measure the rates at which TCP segments are sent and received using the Transmission Control Protocol (TCP). It includes counters that monitor the number of TCP connections in each TCP connection state.

Counter Name

Description

Counter Type

Connection Failures

Shows the number of times that TCP connections have made a direct transition to the CLOSED state from the SYN-SENT or SYN-RCVD state, plus the number of times TCP connections have made a direct transition to the LISTEN state from the SYN-RCVD state.

PERF_COUNTER_RAWCOUNT

Connections Active

Shows the number of times TCP connections have made a direct transition to the SYN-SENT state from the CLOSED state.

PERF_COUNTER_RAWCOUNT

Connections Established

Shows the number of TCP connections for which the current state is either ESTABLISHED or CLOSE-WAIT.

PERF_COUNTER_RAWCOUNT

Connections Passive

Shows the number of times that TCP connections have made a direct transition to the SYN-RCVD state from the LISTEN state.

PERF_COUNTER_RAWCOUNT

Connections Reset

Shows the number of times that TCP connections have made a direct transition to the CLOSED state from either the ESTABLISHED or CLOSE-WAIT state.

PERF_COUNTER_RAWCOUNT

Segments/sec

Shows the rate at which TCP segments are sent or received using the TCP protocol. Segments/sec is the sum of the values of TCP\ Segments Received/sec and TCP\Segments Sent/sec.

PERF_COUNTER_COUNTER

Segments Received/sec

Shows the rate at which segments are received, including those received in error. This count includes segments received on currently established connections. Segments Received/sec is a subset of TCP: Segments/sec.

PERF_COUNTER_COUNTER

Segments Retransmitted/sec

Shows the rate at which segments containing one or more previously transmitted bytes are retransmitted.

PERF_COUNTER_COUNTER

Segments Sent/sec

Shows the rate at which segments are sent. This value includes those on current connections, but excludes those containing only retransmitted bytes. Segments Sent/sec is a subset of TCP\ Segments/sec.

PERF_COUNTER_COUNTER