Vaprak@cup.portal.com (John C Foy) (02/17/89)
I have been seeing quite a bit of talk about TCP-IP lately... Would someone please advise me of what this is??? thanx in advance. Vaprak@cup.portal.com Sun!cup.portal.com!Vaprak
ppa@hpldola.HP.COM (Paul P. Austgen) (02/22/89)
These abbreviations refer to levels 3 and 4, approximately, of the ISO model for OSI (Open Systems Interface). These particular ones are actually earlier, and part of the ARPA defense network. TCP is Transmission Control Protocol which controls end-to-end integrity of the transmission. IP is the Internet Protocol, which understands routing and integrity of the network connection. There are numerous references and whole books devoted to this subject.
jbvb@ftp.COM (James Van Bokkelen) (02/22/89)
In article <14729@cup.portal.com>, Vaprak@cup.portal.com (John C Foy) writes: > I have been seeing quite a bit of talk about TCP-IP lately... Would > someone please advise me of what this is??? > TCP/IP is a family of inter-networking protocols developed over quite a number of years. It was originally funded by the DOD for use on the ARPAnet, but as that grew into the Internet (a lot of networks all connected together), academic and commercial use has greatly outgrown DOD usage. IP stands for Internet Protocol, a low-level datagram protocol, TCP stands for Transmission Control Protocol, a reliable byte-stream protocol. All the protocol documents are on-line at SRI-NIC.ARPA, as well as a list of currently available implementations. Use anonymous FTP to get them. Doug Comer's book "Internetworking With TCP/IP" is pretty good. So is John Davidson's "An Introduction to TCP/IP", but it is considerably thinner. Most 4bsd Unix systems come with TCP/IP support in the kernel. Sun's NFS is an application protocol layered on top of IP (and UDP, the User Datagram Protocol). Much of the news you see is moved at least part of the way to you by the Network News Transport Protocol (over TCP and IP). -- James B. VanBokkelen We're moving. After 2/26, the new number FTP Software Inc. will be (617) 246-0900.