Cisco ASA Series Configuration Manual page 399

Chapter 16 Connection Settings
Feature Name
Increased maximum connection limits for
service policy rules
Decreased the half-closed timeout minimum
value to 30 seconds
Platform
Releases Description
9.0(1) The maximum number of connections for service policy
rules was increased from 65535 to 2000000.
We modified the following commands: set connection
conn-max, set connection embryonic-conn-max, set
connection per-client-embryonic-max, set connection
per-client-max.
9.1(2) The half-closed timeout minimum value for both the global
timeout and connection timeout was lowered from 5
minutes to 30 seconds to provide better DoS protection.
We modified the following commands: set connection
timeout half-closed, timeout half-closed.
Cisco ASA Series Firewall CLI Configuration Guide
History for Connection Settings
16-19