In this article we are focusing on TCP as an independent transport protocol.īecause TCP/IP protocol suite uses a layered model where each layer serves the purpose of the layer above (see picture below), one good way of detecting issues in a TCP/IP network is to focus on the transport layer (the TCP protocol), and that is exactly what we are going to do here. Once the differences between TCP, IP and TCP/IP have been clarified, we will narrow down the scope of this article.
What can we do? After all, the world is not a perfect place, isn´t it? TCP/IP is sometimes called IPS (Internet Protocol Suite) which for me is certainly a better name, but for some reason less used. However when we say TCP/IP, we are referring to the suite of protocols that empower Internet, rather than to the individual TCP and IP protocols. The whole stack of protocols was named TCP/IP just because TCP an IP were the most famous protocols of the group.
TCP/IP refers to a suite of protocols used on the Internet that includes a transport protocol named TCP, and a network protocol named IP, but also includes many other protocols. TCP and IP as individual protocols were the lead singers of the suite of protocols, so the whole band was named after them (TCP/IP), even when there were many other (excellent) protocols playing on the protocol suite. To further clarify, let´s make a musical analogy: if you are in a band where your lead singer is “John Bon Jovi”, and even when there are 13 musicians more in the band, you cannot be surprised if the whole band ends up being called “Bon Jovi”, aren´t you? That is what it happened actually to TCP/IP as well. It simply happened that the TCP protocol and the IP protocol were the rock stars of the whole protocol stack, so the whole set of protocols was named after them in a name that combines both protocols in a single word: TCP/IP. TCP/IP is both a protocol suite( a set of protocols used on the Internet an other networks alike ), and a couple of specific protocols: TCP an IP.Īs a protocol suite: TCP/IP contains a lot of protocols like HTTP, TELNET, FTP, ARP, DNS, etc, but it has taken its name from the most two famous protocols within the suite: TCP as a transport protocol, and IP as a network protocol. How to detect issues at the transport layer with Wireshark.
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