IP ROUTING

TCP Statistics

The Transmission Control Protocol (TCP) provides highly reliable host-to-host connections in packet-switched networks, and is used in conjunction with IP to support a wide variety of Internet protocols.

Statistical Values

Parameter

Description

Segments Received

The total number of segments received, including those

 

received in error. This count includes segments received

 

on currently established connections.

 

 

Segments Sent

The total number of segments sent, including those on

 

current connections but excluding those containing only

 

retransmitted octets.

 

 

Active Opens

The number of times TCP connections have made a

 

direct transition to the SYN-SENT state from the

 

CLOSED state.

 

 

Failed Connection

The number of times TCP connections have made a

Attempts

direct transition to the CLOSED state from either the

 

SYN-SENT state or the SYN-RCVD state, plus the

 

number of times TCP connections have made a direct

 

transition to the LISTEN state from the SYN-RCVD

 

state.

 

 

Current Connections

The number of TCP connections for which the current

 

state is either ESTABLISHED or CLOSE- WAIT.

 

 

Receive Errors

The total number of segments received in error (e.g.,

 

bad TCP checksums).

 

 

Segments Retransmitted

The total number of segments retransmitted - that is, the

 

number of TCP segments transmitted containing one or

 

more previously transmitted octets.

 

 

Passive Opens

The number of times TCP connections have made a

 

direct transition to the SYN-RCVD state from the

 

LISTEN state.

 

 

Reset Connections

The number of times TCP connections have made a

 

direct transition to the CLOSED state from either the

 

ESTABLISHED state or the CLOSE-WAIT state.

 

 

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SMC Networks SMC6724L3 manual 171, TCP Statistics