回波应答(Echo Reply)用于探测和DoS不能到达目的地(Destination unreachable)提高性能,用于探测源结束(Source Quench)提高性能重定向(Redirect)提高本...
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虽然它提供的信息十分丰富,但在嵌入式Web服务器应用中,只要实现回送请求(echo request)和回送应答(echo reply)就足够了。 3.4 TCP协议实现 TCP是嵌入式Web服务器的核心。
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ECHO-REPLY 响应应答
ICMP Echo Reply 应答 ; 回送响应 ; 应报文 ; ICMP回显应答
Echo & Echo Reply 回送请求与应答
echo reply message 回应答覆讯息 ; 回应答复讯息
Echo-request and echo-reply message format 回送请求和回送回答报文格式
Echo request and reply 回显请求和应答 ; 最常用
Echo request or reply 回应请求和应答
If no echo reply is received, then one or more of the conditions described above hasn't been met and the ping fails (see Listing 2).
如果没有收到回显回复,就说明不满足上述一个或多个条件,ping失败了(见清单2)。
The output from a successful ping can also be useful in helping to determine network latency, as it reports on the time taken to receive the echo reply.
成功的ping的输出还有助于判断网络延迟,因为它会报告收到回显回复花费的时间。
Attempts to send an Internet Control message Protocol (ICMP) echo message to a remote computer and receive a corresponding ICMP echo reply message from the remote computer.
尝试将网际网路控制讯息通讯协定(ICMP)回应讯息传送给远端电脑,并从远端电脑接收对应的ICMP回应回复讯息。
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