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Concepten van computernetwerken. OSI Model. Protocol Overview. OSI Model. Internet Protocol Suite. Application. Application. Presentation. Session. Transport. Transport. Network. Internet. Data-link. Network Interface. Physical. Netwerk-protocollen. Netwerk-protocollen.
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OSI Model Internet Protocol Suite Application Application Presentation Session Transport Transport Network Internet Data-link Network Interface Physical Netwerk-protocollen
Netwerk-protocollen Application HTTP, HTTPS, SMTP, POP, LDAP FTP, TELNET BGP, NTP, NNTP DNS DHCP, RADIUS, SNMP RIP RealAudio, CU-SeeMe NetMeeting Transport TCP UDP Internet ICMP IP ARP Network Interface PPP Ethernet, PSTN, ISDN, Frame Relay, ATM
App. header User data TCP header Application data IP header TCP header Application data Ethernet header IP header TCP header Application data Ethernet trailer Encapsulatie User data TCP segment IP datagram Ethernet Frame
TCP/IP en standaardisatie • Internet Architecture Board • Internet Research Task Force • Internet Engineering Task Force • Internet Engineering Steering Group
RFC’s : Request for comment • Werkdocumenten voor de Internet Community • Standaarden worden gepubliceerd in RFC’s • Vijf classificaties: • Required, recommended, directional, informational, and obsolete • Ontwikkeld op basis van consensus
RFC’s : Example 2328 OSPF Version 2. J. Moy. April 1998. (Format: TXT=447367 bytes) (Obsoletes RFC2178) (Also STDO054) (Status: STANDARD) 2178 J..Moy, .OSPF yersion 2., 07/22/1997. (Pages=211) (Format=.txt) (Obsoletes RFC1583) 1583 J. Moy, nosPF Version 2., 03/23/1994. (Pages=212) (Format=.txt, :ps) (Obsoletes RFC1247) (Obsoleted by RFC2178) 1247 J. Moy, .OSPF Version 2n, 08/08/1991. (Pages=189) (Format=.txt, .ps) (Obsoletes RFCl131) (Obsoleted by RFC1583) 1131 J. Moy, nosPF specificationn, 10/01/1989. (Pages=107) (Format=.txt, .ps) (Obsoleted by RFC1247)
RFC’s : Example Mailer software MUST be able to send and receive messages of at least 64K bytes in length (including header), and a much larger maximum size is highly desirable. Host software MUST handle hostnames of up to 63 characters and SHOULD handle hostnames of up to 255 characters.
Oefening • Download + bekijk rfc-index.txt • Download + lees RFC 1812 of RFC 1123 • Download RFC 1918