Solaris Tunable Parameters Reference Manual

tcp_rexmit_interval_min

Description

The default minimum retransmission time-out (RTO) value in milliseconds. The calculated RTO for all TCP connections cannot be lower than this value. See also tcp_rexmit_interval_max.

Default

400 milliseconds

Range

1 millisecond to 20 seconds

Dynamic?

Yes

When to Change

Do not change the value in a normal network environment.

TCP's RTO calculation should be able to cope with most RTT fluctuations. If in some very special circumstances such that the round trip time (RTT) for a connection is in the order of 10 seconds, change to a higher value. If you change this value, you should change the tcp_rexmit_interval_max parameter to match it. You should change the value of tcp_rexmit_interval_max to at least eight times the value of tcp_rexmit_interval_min.

Commitment Level

Unstable