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用netstat查看网络状态详解( 二 )

netstat


connection is broken. Default value : 9 .
c、 tcp_keepalive_intvl - INTEGER
How frequently the probes are send out. Multiplied by
tcp_keepalive_probes it is time to kill not responding connection,
after probes started. Default value : 75sec i.e. connection
will be aborted after ~ 11 minutes of retries.
2、F5负载均衡上的相关参数说明a、Keep Alive IntervalSpecifies, when enabled, how frequently the system sends data over an idle TCP connection, to determine whether the connection is still valid.Specify : Specifies the interval at which the system sends data over an idle connection, to determine whether the connection is still valid. The default is 1800 milliseconds.
b、Time Wait
Specifies the length of time that a TCP connection remains in the TIME - WAIT state before entering the CLOSED state.
Specify : Specifies the number of milliseconds that a TCP connection can remain in the TIME - WAIT state. The default is 2000 .
【用netstat查看网络状态详解】c、Idle Timeout
Specifies the length of time that a connection is idle (has no traffic) before the connection is eligible for deletion.
Specify : Specifies a number of seconds that the TCP connection can remain idle before the system deletes it. The default
is
300
seconds.
3、Apache的相关参数说明
以下是Apache/2.0.61版本的默认参数和说明
a、KeepAlive :
default On.Whether or not to allow persistent connections (more than
one request per connection). Set to “Off” to deactivate.
b、MaxKeepAliveRequests :
default 100 .The maximum number of requests to allow
during a persistent connection. Set to 0 to allow an unlimited amount.
We recommend you leave this number high, for maximum performance.
c、KeepAliveTimeout :
default 15 . Number of seconds to wait for the next request from the
same client on the same connection.




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