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  • Albert’s CCNA Study Guide(1)

    试题作者:佚名    试题来源:不详    试题栏目:思科认证试题    收藏本页
    Access list

    1-99 IP standard

    100-199 IP extended

    200-299 Protocol type code

    300-399 DECnet access list

    400-499 XNS Standard Access

    500-599 XNS Extended Access

    600-699 AppleTalk

    700-799 48 bit MAC address

    800-899 IPX

    900-999 IPX Extended

    1000-1099 IPX SAP

    1100-1199 Extended 48 bit MAC address

    1200-1299 IPX summary address




    Port numbers

    TCP=6

    UDP=17

    FTP=21

    TELNET=23

    SMTP=25

    DNS=53

    TFTP=69

    SNMP=161




    NOVEL IPX Frame Type




    Interface
    Novell Frame Type
    Cisco Keyword

    Ethernet
    Ethernet 802.3 and NetWare 3.11
    Novell Ether

    IPX Ethernet Encapsulation


    Ethernet 802.2 and NetWare 3.12
    SAP


    Ethernet II
    ARPA, DECnet and supports TCP/IP, IPX and upper layers


    Ethernet SNAP
    SNAP, AppleTalk, IPX, and TCP/IP

    Token Ring
    Token Ring 802.
    SAP


    Token Ring_SNAP
    SNAP

    FDDI
    FDDI SNAP
    SNAP


    FDDI 802.2
    SAP


    FDDI RAW
    NOVELL-FDDI


    DOD model




    IP
    DOD
    Protocol

    Application, Presentation, Session
    Process Application
    Telnet, FTP, LPD, SNMP, TFTP, SMTP, NFS, X WINDOW

    Transport
    Host to Host
    TCP, UDP

    Network
    Internet
    ICMP, BOOTP, ARP, RARP, IP

    Data Link
    Network Access
    Ethernet, Fast Ethernet, Token Ring, FDDI






    IPX Protocl Stack:

    Application, Presentation, Session ?/span> RIP, SAP, NCP, NLSP, etc…

    Transport ?/span> IPX, SPX

    Network ?/span> IPX

    Data link ?/span> ODL Open Data Link

    Physical ?/span> whatever



    OSI Model:

    Transport is TCP Segments

    Network is IP Packets/Datagrams

    Data Link is Ethernet frames

    Physical is Bits



    The five steps to Encapsulation:

    1. Build the data

    2. Package data for end-to-end transport (Segments transport subsystem)

    3. Append network address in header (data is put into a packet or datagram) Network

    4. Append local address in data link header (must be put into a frame or packet) Data

    5. Convert to bits for transmission 1 and 0 Physical



    Data > Segment > Packet > Frame > Bits



    Data Encapsulation Method

    1. User information is converted to data for transmissi
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