tcp_deferred_ack_interval

Description

The time-out value for TCP delayed acknowledgment (ACK) timer in milliseconds for hosts that are not directly connected.

Refer to RFC 1122, 4.2.3.2.

Default

100 milliseconds

Range

1 millisecond to 1 minute

Dynamic?

Yes

When to Change

Do not increase this value to more than 500 milliseconds.

If in some circumstances, slow network links (less than 57.6 Kbps) with greater than 512 bytes maximum segment size (MSS) when the interval is short for receiving more than one TCP segment, increase the value.

Commitment Level

Unstable