Where does MTP/IP fit in with other acronyms like HTTP, PPP, TCP, etc?
The Internet is often organized into four protocol layers: application, transport, network, and link. This is called the Protocol Stack (similar to the 7 layer OSI stack). • The application layer refers to protocols that manage data content and are not concerned with the details of how the data gets moved. Examples are web (HTTP), email (SMTP), file transfer (FTP), and news groups (NNTP). • The actual data movement is usually left up to the transport layer, traditionally the Transmission Control Protocol (TCP/IP). The transport layer handles error correction and flow control, but leaves the routing of data across the network to the underlying network layer. • The Internet is pretty much defined by the use of the Internet Protocol (IP) at the network layer to route data across the many links, or hops, which may lie between machines. • The protocols used to physically communicate data across those links (ethernet, FDDI, PPP, v.90 etc) make up the link layer. Most of these are related to
