Microsoft Windows Server 2003 TCP/IP Protocols and Services Technical Reference Slide: 1 Lesson 1 Local Area Network (LAN) Technologies.

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Presentation transcript:

Microsoft Windows Server 2003 TCP/IP Protocols and Services Technical Reference Slide: 1 Lesson 1 Local Area Network (LAN) Technologies

Microsoft Windows Server 2003 TCP/IP Protocols and Services Technical Reference Slide: 2 LAN Encapsulations Delimitation Protocol identification Addressing Bit-level integrity check

Microsoft Windows Server 2003 TCP/IP Protocols and Services Technical Reference Slide: 3 LAN Technologies Ethernet Token Ring FDDI IEEE

Microsoft Windows Server 2003 TCP/IP Protocols and Services Technical Reference Slide: 4 Ethernet Ethernet II IEEE IEEE SNAP

Microsoft Windows Server 2003 TCP/IP Protocols and Services Technical Reference Slide: 5 Destination Address Source Address Payload... EtherType Frame Check Sequence Preamble ,500 bytes Ethernet II

Microsoft Windows Server 2003 TCP/IP Protocols and Services Technical Reference Slide: 6 The Maximum Extent Ethernet Network Repeater 2500 meters A B Slot time = 57.6  s

Microsoft Windows Server 2003 TCP/IP Protocols and Services Technical Reference Slide: 7 IEEE Frame Format Destination Address Source Address DSAP SSAP Control Payload Length Frame Check Sequence Preamble IEEE LLC Header Start Delimiter... IEEE Header IEEE Trailer

Microsoft Windows Server 2003 TCP/IP Protocols and Services Technical Reference Slide: 8 IEEE SNAP Frame Format Destination Address Source Address DSAP SSAP Control IP Datagram Length Frame Check Sequence Preamble IEEE LLC Header Start Delimiter... IEEE Header IEEE Trailer Organization Code EtherType = 0x = 0x08-00 SNAP Header 38-1,492 bytes = 0xAA = 0x03

Microsoft Windows Server 2003 TCP/IP Protocols and Services Technical Reference Slide: 9 Special Bits on Ethernet MAC Addresses Destination Address Source Address 0 - Individual 1 - Group 0 - Universal Admin 1 - Local Admin 0 - No Routing 1 - Routing Present 0 - Universal Admin 1 - Local Admin

Microsoft Windows Server 2003 TCP/IP Protocols and Services Technical Reference Slide: 10 IEEE Frame Format DSAP SSAP Control IEEE LLC Header... IEEE Header IEEE Trailer Starting Delimiter Access Control Frame Control Destination Address Source Address Frame Check Sequence Ending Delimiter Frame Status Payload

Microsoft Windows Server 2003 TCP/IP Protocols and Services Technical Reference Slide: 11 IEEE SNAP Frame Format IEEE Header IEEE Trailer Starting Delimiter Access Control Frame Control Destination Address Source Address Frame Check Sequence Ending Delimiter Frame Status DSAP SSAP Control IP Datagram IEEE LLC Header... Organization Code EtherType = 0x = 0x08-00 SNAP Header = 0xAA = 0x03

Microsoft Windows Server 2003 TCP/IP Protocols and Services Technical Reference Slide: 12 Special Bits on Token Ring MAC Addresses Destination Address 0 - Individual 1 - Group 0 - Universal Admin 1 - Local Admin 0 - No Routing 1 - Routing Present 0 - Universal Admin 1 - Local Admin Source Address 0 - Functional 1 - Nonfunctional

Microsoft Windows Server 2003 TCP/IP Protocols and Services Technical Reference Slide: 13 FDDI Frame Format DSAP SSAP Control IEEE LLC Header... FDDI Header FDDI Trailer Preamble Starting Delimiter Frame Control Destination Address Source Address Frame Check Sequence Ending Delimiter Frame Status Payload

Microsoft Windows Server 2003 TCP/IP Protocols and Services Technical Reference Slide: 14 FDDI SNAP Frame Format FDDI Header FDDI Trailer Preamble Starting Delimiter Frame Control Destination Address Source Address Frame Check Sequence Ending Delimiter Frame Status DSAP SSAP Control IP Datagram IEEE LLC Header... Organization Code EtherType = 0x = 0x08-00 SNAP Header = 0xAA = 0x03 Up to 4,352 bytes

Microsoft Windows Server 2003 TCP/IP Protocols and Services Technical Reference Slide: 15 IEEE Frame Format Address 1 Address 2 DSAP SSAP Control Payload Address 3 Frame Check Sequence Frame Control IEEE LLC Header Duration/ID... IEEE Header IEEE Trailer Sequence Control Address 4

Microsoft Windows Server 2003 TCP/IP Protocols and Services Technical Reference Slide: 16 Protocol Version Type Subtype To DS From DS More Fragments Retry Power Management More Data WEP Order The Frame Control Field

Microsoft Windows Server 2003 TCP/IP Protocols and Services Technical Reference Slide: 17 IEEE SNAP Frame Format Address 1 Address 2 DSAP SSAP Control IP Datagram Address 3 Frame Check Sequence Frame Control IEEE LLC Header Duration/ID... IEEE Header IEEE Trailer Sequence Control Organization Code EtherType = 0x = 0x08-00 SNAP Header = 0xAA = 0x03

Microsoft Windows Server 2003 TCP/IP Protocols and Services Technical Reference Slide: 18 Review Ethernet Token Ring FDDI IEEE