ECAN-200-FD (Ethernet to 2-port CAN FD Converter) User Manual
Version 1.0.0
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13. Ping
Ping is a network administration utility used to test the whether a host on an Internet network is
active, and to measure the round-trip time for messages sent from the originating host to a
destination computer. Ping operates by sending an ICMP echo request message to a host,
expecting an ICMP echo reply to be returned. Normally, if a host cannot be pinged, Telnet or FTP
cannot be used to connect to the host. Conversely, if Telnet or FTP cannot be used to connect to
a host, Ping is often the starting point to determine the nature of the problem.
14. Socket
Each TCP segment contains a source and destination port number that can be used to identify
the sending and receiving application. These two values, along with the source and destination
IP addresses in the IP header, uniquely identify each connection. The combination of an IP
address and a port number is called a socket.
15. TCP (Transmission Control Protocol)
TCP is a set of rules used in combination with the Internet Protocol to send data in the form of
message units between computers over the Internet. TCP provides a reliable flow of data
between two hosts and is associated with tasks such as dividing the data passed to it from an
application into appropriately sized chunks for the network layer below, acknowledging received
packets, setting timeouts to make certain that the other end acknowledges packets that are sent,
and so on.
16. TCP/IP
The Transmission Control Protocol (TCP) and the Internet Protocol (IP) is standard network
protocols that are almost always implemented and used together in a formation are known as
TCP/IP. TCP/IP can be used to communicate across any set of interconnected networks.
17. UDP (User Datagram Protocol)
UDP is an internet protocol that provides a much simpler service to the application layer as it only
sends packets of data from one host to another, but there is no guarantee that the packets will
reach the destination host. UDP is suitable for purposes where error checking and correction is
either not necessary or is performed in the application.
