Messer N+ 01

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Author:
esmenikmati
ID:
166366
Filename:
Messer N+ 01
Updated:
2012-08-22 21:36:32
Tags:
Messer network
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Description:
01
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  1. OSI nmeumonic
    • All
    • People
    • Seem
    • To
    • Need
    • Data
    • Processing
  2. OSI Layer 1
    • Physical: Signaling, cabling, connectors
    • no protocols
  3. OSI Layer 2
    • Data: basic foundation of communication
    • Data link protocols (DLC): MAC address
    • Network switches
  4. OSI Layer 3
    • Network: "routing" layer
    • Internet Protocol (IP)
  5. OSI Layer 4
    • Transport: "post office" layer
    • TCP/UDP
  6. OSI Layer 5
    • Session: start, stop, restart
    • duplexes, control protocols, tunneling
  7. OSI Layer 6
    • Presentation: Character encoding
    • binary to text
    • often combined with application layer
  8. OSI Layer 7
    • Application: The layer we see
    • HTTP, FTP, DNS, POP3
  9. ARP
    • Address Resolution Protocol
    • MAC addresses
  10. TCP/IP Model
    • Application
    • Transport
    • Internet
    • Link
    • (All Trains Into London)
  11. Examples of OSI layer 1
    • Phyiscal
    • Hub, NIC, Cable
  12. Examples of OSI Layer 2
    • Data Link
    • Frame, MAC address, Extended Unique Identifier, Switch
  13. Examples of OSI Layer 3
    • Network
    • IP, Router, Packet
    • All items in layer 3-7 are encapsulated within packets
  14. Examples of OSI Layer 4
    • Transport
    • TCP, UDP
  15. Examples of OSI Layer 5
    • Session
    • Control protocols, tunneling
  16. Examples of OSI Layer 6
    Encryption (SSL, TLS)
  17. RFC 1918
    Local (private) IP addressing
  18. EUI-64
    • Used in IPv6, Firewire
    • 8-bytes, hexadecimal
    • first 3: from IEEE to organization
    • last 5: sequential from manufacturer
  19. MAC Address
    • 6 bytes, hexadecimal
    • first 3 bytes, assigned by IEEE to organization¬†
    • second 3 bytes, sequential order from manufacturer

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