Enterasys Networks CSX6000, CSX5500, CSX7000 manual TCP Statistics

SYSTEM STATISTICS

TCP Statistics

TCP STATISTICS

You can access these statistics by issuing the tcp stats console command.

tcpRtoAlgorithm

The algorithm used to determine the timeout value used for retransmitting unacknowledged octets. This value is always equal to 4 for the Van Jacobson’s algorithm.

tcpRtoMin

The minimum value permitted by a TCP implementation for the retransmission timeout, measured in milliseconds.

tcpRtoMax

The maximum value permitted by a TCP implementation for the retransmission timeout, measured in milliseconds.

tcpMaxConn

The limit on the total number of TCP connections the system can support.

tcpActiveOpens

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

tcpPassiveOpens

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

tcpAttemptFails

The number of times TCP connections have made a 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.

tcpEstabResets

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.

tcpCurrEstab

The number of TCP connections for which the current state is either ESTABLISHED or CLOSE- WAIT. This counter is not currently kept up to date.

tcpInSegs

The total number of segments received, including those received in error. This count includes segments received on currently established connections.

tcpOutSegs

The total number of segments sent, including those on current connections but excluding those containing only retransmitted octets.

tcpRetransSegs

The total number of segments retransmitted (the number of tcp segments transmitted containing one or more previously transmitted octets).

Central Site Remote Access Switch 655