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.Table 1 (Page 1 of 2).Current State, Status and STD Numbers of Important Internet ProtocolsProtocol Name State Status STDIP Internet Protocol Std.Req.5ICMP Internet Control Message Protocol Std.Req.5UDP User Datagram Protocol Std.Rec.6TCP Transmission Control Protocol Std.Rec.7Legend:State: Std.= Standard; Draft = Draft Standard; Prop.= Proposed Standard; Info.= Informational; Hist.= HistoricStatus: Req.= Required; Rec.= Recommended; Ele.= Elective; Not = Not Recommended20 TCP/IP Tutorial and Technical Overview Table 1 (Page 2 of 2).Current State, Status and STD Numbers of Important Internet ProtocolsProtocol Name State Status STDTELNET TELNET Protocol Std.Rec.8FTP File Transfer Protocol Std.Rec.9SMTP Simple Mail Transfer Protocol Std.Rec.10MAIL Format of Electronic Mail Messages Std.Rec.11DOMAIN Domain Name System Std.Rec.13MIME Multipurpose Internet Mail Extensions Draft Ele.SNMP Simple Network Management Protocol Std.Rec.15SMI Structure of Management Information Std.Rec.16MIB-II Management Information Base-II Std.Rec.17NETBIOS NetBIOS Services Protocol Std.Ele.19TFTP Trivial File Transfer Protocol Std.Ele.33RIP Routing Information Protocol Hist.Not 34RIP2 Routing Information Protocol V2 Draft Ele.ARP Address Resolution Protocol Std.Ele.37RARP Reverse Address Resolution Protocol Std.Ele.38BGP4 Border Gateway Protocol 3 Draft Ele.PPP Point-to-Point Protocol Std.Ele.51POP3 Post Office Protocol V3 Std.Ele.53OSPF2 Open Shortest Path First Protocol V2 Std.Ele.54BOOTP Bootstrap Protocol Draft Rec.DHCP Dynamic Host Configuration Protocol Draft Ele.IMAPV4 Interactive Mail Access Protocol V4 Prop.Ele.GOPHER The Internet Gopher Protocol Info.SUN-NFS Network File System Protocol Info.IPV6 Internet Protocol Version 6 Prop.Ele.HTTP-1.1 Hypertext Transfer Protocol 1.1 Prop.Ele.Legend:State: Std.= Standard; Draft = Draft Standard; Prop.= Proposed Standard; Info.= Informational; Hist.= HistoricStatus: Req.= Required; Rec.= Recommended; Ele.= Elective; Not = Not Recommended1.4 Future of the InternetTrying to predict the future of the Internet is not an easy task.Few would haveimagined even say, three years ago, the extent to which the Internet has nowbecome a part of everyday life in business, homes and schools.There are anumber of things, however, about which we can be fairly certain.Bandwidth requirement will continue to increase at massive rates; not only is thenumber of Internet users growing rapidly, but the applications being used arebecoming more advanced and therefore need more bandwidth.This is the reasonwhy the number of core (backbone) service providers has grown from four in 1995to around 48 today (whereas the number of Internet connection providers hasgrown only moderately).However, new technologies such as Dense Wave DivisionMultiplexing (DWDM) will help to get the most bandwidth from currently installedfiber.Chapter 1.Introduction to TCP/IP - History, Architecture and Standards 21 Today it is possible to hear radio stations from almost any part of the globe via theInternet.Today this is at around AM quality.Soon FM-quality radio andvideo-on-demand will be driving the bandwidth requirement.Many businesses have already completed an experimental period of Internetaccess and are moving towards using the Internet for serious business use bothintra- and inter-company.This has been made possible by the rapid advances inTCP/IP security technologies made in only the last one to two years.In the not toodistant future, the availability of private, secure high bandwidth networking fromInternet providers may well make many companies question the feasibility of theircurrent in-house wide area networks.Today we already have Voice over IP technology.As this technology matures weare almost certain to see a sharing of bandwidth between voice and data acrossthe Internet.This raises some interesting questions for phone companies.Thecost to a user of an Internet connection between New York and Japan is the sameas a connection within New York - not so a phone connection.This, and the factthat the Internet is deregulated, will raise many interesting questions in the years tocome.1.5 IBM and the InternetTo the casual observer of a decade or so ago, it may have appeared that IBM hadlittle interest in the Internet or TCP/IP.It is true that for a long period of time,certain parts of IBM involved in the development and marketing of SNA networksand protocols did consider TCP/IP to be a competitor [ Pobierz całość w formacie PDF ]