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  2. ping (networking utility) - Wikipedia

    en.wikipedia.org/wiki/Ping_(networking_utility)

    Pinging involves sending an ICMP echo request to the target host and waiting for an ICMP echo reply. The program reports errors, packet loss , and a statistical summary of the results, typically including the minimum, maximum, the mean round-trip times, and standard deviation of the mean.

  3. Timeout (computing) - Wikipedia

    en.wikipedia.org/wiki/Timeout_(computing)

    In the Microsoft Windows and ReactOS [2] command-line interfaces, the timeout command pauses the command processor for the specified number of seconds. [3] [4] In POP connections, the server will usually close a client connection after a certain period of inactivity (the timeout period). This ensures that connections do not persist forever, if ...

  4. Round-trip delay - Wikipedia

    en.wikipedia.org/wiki/Round-trip_delay

    RTT is a measure of the amount of time taken for an entire message to be sent to a destination and for a reply to be sent back to the sender. The time to send the message to the destination in its entirety is known as the network latency, and thus RTT is twice the latency in the network plus a processing delay at the destination.

  5. traceroute - Wikipedia

    en.wikipedia.org/wiki/Traceroute

    On Windows, tracert sends ICMP Echo Request packets, rather than the UDP packets traceroute sends by default. [11] The time-to-live (TTL) value, also known as hop limit, is used in determining the intermediate routers being traversed towards the destination. Traceroute sends packets with TTL values that gradually increase from packet to packet ...

  6. Internet Control Message Protocol - Wikipedia

    en.wikipedia.org/wiki/Internet_Control_Message...

    The ICMP header starts after the IPv4 header and is identified by its protocol number, 1. [6] All ICMP packets have an eight-byte header and variable-sized data section. The first four bytes of the header have fixed format, while the last four bytes depend on the type and code of the ICMP packet.

  7. Client-to-client protocol - Wikipedia

    en.wikipedia.org/wiki/Client-to-client_protocol

    A CTCP PING request will determine the ping rate that directly exists between two clients (i.e. discounting the server). The CTCP PING command works by sending an (often) integer argument (a timestamp ) to a target client, the target client then responds by supplying exactly the same numerical parameter.

  8. Fix sending and receiving issues with third-party email apps

    help.aol.com/articles/cant-send-or-receive-email...

    1. Sign into AOL Mail on a web browser. 2. Compose an email and add your own email address in the "To" field. 3. Send the email and check if it arrives.

  9. Real-Time Messaging Protocol - Wikipedia

    en.wikipedia.org/wiki/Real-time_Messaging_Protocol

    Type 6 - Ping the client from server. The second parameter is the current time. Type 7 - Pong reply from client. The second parameter is the time when the client receives the Ping. Type 8 - UDP Request. Type 9 - UDP Response. Type 10 - Bandwidth Limit. Type 11 - Bandwidth. Type 12 - Throttle Bandwidth. Type 13 - Stream Created. Type 14 - Stream ...