??20 NetSim-Cisco????? - PowerPoint PPT Presentation

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??20 NetSim-Cisco?????

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20 NetSim Cisco Cisco IOS ... – PowerPoint PPT presentation

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Title: ??20 NetSim-Cisco?????


1
??20 NetSim-Cisco?????
  • ????
  • ??Cisco?????????????
  • ???IOS??????????????????????????????????

2
????
  • ????LAN???Ethernet?Fast Ethernet?Gigabit
    Ethernet?ATM?Token Ring??????
  • ?????????,??????(10/100/1000 Mbps)????
  • ?????????????????,?????????(Auto-Negotiation)?????
    ????????????????????,????????????,???????????????
    ????????

3
??????
  • ??????????????,????????,?????????????
  • Layer 2 Switch
  • ???????????????(MAC?)????????????????,????????????
    ??(Learning)???????????MAC??,?????MAC??????????(De
    stination AddressDA)???????????(???),???(???)????
    ????,???????????(???),??????????Layer
    2???????????????,???????,??????????????(?????),???
    ?????????

4
??????
  • Layer 3 Switch
  • Layer 3 Switch???IP Switch?Switch
    Router(??????),?????????????????(?IP),????????????
    ??????,?????????????????????????,Layer 3
    Switch???????(?????ASIC??)?????????????,???Layer
    2?????,????????????????(Million packet per
    second)????,???????????????????(Fast
    Ethernet)???,??????????????(Gigabit
    Ethernet)???????

5
??????
  • Layer 4 Switch (Layer 7 Switch)
  • ???Layer 3???????????,??????????TCP?UDP??,????????
    ?????????????Qos???,??????????(voice??),????????
    ?????????

6
???????
  • ????????????????(Bridge)?????,??????????IEEE802.3?
    IEEE802.3u,???????????(CSMA/CD)?
  • ????????????????,?????????????????,??????????,???
    ?????,???????,???????????????????,????????(Cut
    through?Store-and-forward?Fragment
    free),????????????,????Auto-Negotiation??????,????
    ?????????????

7
???????
  • ??????????,????????????,????????VLAN(Virtual
    Lan??????)?Layer 3?????,????????????????????
  • ????,?????????????(fast ethernet,???100
    Mbps)???????????MAC??,???????????????,????????????
    ?????????,???????????????

8
???????
  • ???????
  • ????????????,???????
  • ????????,??????????,????????????
  • ??????????
  • ???????
  • ???????????????????????,????????????????????????,?
    ????????????????,???????????,???????

9
????
  • ?????????
  • ???????????????,?????????????,??????,??????Switch
    1?????????Shinchu_LAN????????????????????,??????,?
    ??????

10
??????
  • MOTD??????????,??????????????,???????????,????????
    ???????????????????? Enter,???????,??????? Enter?

11
??????
  • ????????????,???show running-config?show
    interface???????????

12
????
  • ??????????(console 0)?telnet(vty 0
    15)?????,????????,?????????

13
?????????
  • ??????????,????????????enable secret??,???????????
    ?????????enable passwd?enable secret?????????(??
    ???),?????????????????????,???????????

14
??IP???????
  • ????????IP????????????,???????????????????,???????
    IP???????,?????????,???ip address??????IP????ip
    default-gateway?????????,????????????????,????????
    ??no shutdown???,?????????????Switch
    1???vlan1?IP???192.168.2.253,Netmask?255.255.255.0
    ,????????????????192.168.2.254Switch
    2???vlan1?IP???192.168.3.253,Netmask?255.255.255.0
    ,??????192.168.3.254?

15
??IP???????
16
????
  • ?????show interfaces??????????,??????,???????show
    ip interface brief???,?????????????,??????????????
    ??????

17
ARP??
  • ??????show arp??????ARP??,???????show
    mac-address-table??????????????????????,???switchp
    ort port-security maximum ltnogt?????????mac-address
    ????,?switchport port-security mac-address
    ltmac-addressgt???????ltmac-addressgt??????,??Boson
    NetSim for CCNP????????

18
????
  • ???????????,???????,?????????????????copy
    running-config startup-config(copy run
    start),IOS?????????????NVRAM?,??????????????copy
    running-config tftp???TFTP?

19
????
  1. ??????(collision domain)?
  2. ????????????????????
  3. ??????????????????????????
  4. ?????????
  5. ????????????
  6. ????????????????????
  7. ???????????????????????
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