由于客户机不希望强制断开连接，因此，当连接闲置的时间为此参数指定的秒数时，客户机将自动发送keep-alive消息。

Since clients do not wish to be forcefully disconnected, they will automatically send a keep-alive message if the connection is inactive for the number of seconds specified by this parameter.

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可以使用参数archretrydelay指定在这些尝试之间等待的时间间隔(秒数，默认值是20秒)。

Within this five attempts, however, you can specify the amount of interval (in seconds) or the default (20 seconds) to wait as indicated by the parameter archretrydelay.

youdao

可以使用参数archretrydelay指定在这些尝试之间等待的时间间隔(秒数，默认值是20秒)。

Within this five attempts, however, you can specify the amount of interval (in seconds) or the default (20 seconds) to wait as indicated by the parameter archretrydelay.

youdao