????,?????????,?????????????????????????????,????????,???????????????????????????????????????????????????????????????????????????????????????????????Gigabit??????

1
????????-3

• ??? ?? ??? 935609
• ??? 935611
• ??? 935615
• ??? 935628
• ??? 935637
• ??? 935659
• ???? ??? ??

2
1.?????????????????

• ????,?????????,?????????????????????????????,?????
  ???,??????????????????????????????????????????????
  ?????????????????????????????????????????????????G
  igabit??????
• ?????????????????????????????????????????????(???
  ?????)??????????????????????????????

3

• ???????? IEEE 802.3ad,???????????????????
• ??????
• ?????
• ????????
• ????
• ????
• ?????????
• ??????
• ????????????????
• IEEE 802.3ad ??????????
• ?? IEEE 802.3ad?????????????????????????,?????????
  ? IEEE 802.3ad ??

4

• ? IEEE 802.3ad ?,??????????(LACP)???????????????IE
  EE 802.3ad ??????,????????????(LACPDU)????????????
  ?????LACP ????????????????????????????????,???????
  ??
• ?? IEEE 802.3ad ?????????????????(??),????,LACP
  ??????????????????(?????????????????????????????)?
  ???????????????????,?????????????AIX
  ????????????????,???????????????
• ????????(??????????????????),???????????(??,???
  100 Mbps ? 1 Gbps),????????????? IEEE 802.3ad
  ???,???? IP ???????????????????????,?? 8023ad
  ??????,?????????????????,??????????????

5

• ????????????????
• ????????????????,??????????????????????????????,?
  ?????????,????????????
• ???????(???????)?????????,???????????????????,???
  ?????????????
• ????????????????,????????????????,???????????????
  ?????????????,????????????????????????
• ?????????????????,?????????????????
• ?,??????????????????????????
  ?????
• ?????????????????,???????????,
  ????
• 8KB,?16KB,?32KB???????????????
  ?????????
• ??,????????????????????????????
  

6
(No Transcript)
7
2.??????PPPoE /DHCP/IEEE802.1x

• ??PPPoE?
• PPPoE?Point-to-Point Protocol over
  Ethernet???,????????????????????,?????????????????
  ???(ISP)??????,??????????(?xDSL?Cable?)
  )????????????,???????????PPPoE???????,????????Mode
  m?????????,PPPoE???????ADSL????????????????????,??
  ????IP?
• PPPoE ??????????? Ethernet (PPPoE)?????,??????????
  ? (ISP) ?????????? Xbox Live????????? ISP
  ???????????????

8

• PPPoE???
• ??????????????????(Point-to-Point Protocol over
  EthernetPPPoE),??????(Redback Networks(r),NASDAQ
  RBAK)?RouterWare?UUNET???????????PPPoE?????PC?????
  DSL???????????????,?????????????????PPPoE?????????
  ???(Ethernet?Point-to-Pint)??,????????????????,???
  ??????????????,?????????????????Internet???????,IS
  P?????????????????,?????????????????????????,?????
  ???????????PPPoE???ISP???Back Office?????(????????
  ??????)????,????????????????????,PPPoE????????????
  ,????????????????,?????????

9

• ????,???????????????,?????????????????????,PPPoE??
  ????????,??????????????Microsoft
  Windows??????,?????????????????
• ????DSL????????,??????????????PPPoE??????????????
  ???,PPPoE???????????,??????????????????,????PC????
  ???????????????????????????????ATM???????????PPPo
  E????????????????????,???????????????????

10

• ????
• ????????,PPPoE??????????????(Subscriber
  Management SystemSMS)????,???????????????????(DSL
  )???????????????????????,??????????,?????????????,
  ????????????????????????( Customer Premises
  EquipmentCPE)?????,ISP????????????????,??????????
  ????????,?????????????,??????????IP??,??????????
  PPPoE?????PC???????????,????PC?????SOHO???????????
  ???????,????PC???????????????????????/PC???????,??
  ??TSP?????????????,??ISP???????,??????????????????
  ?????????????????PVC??,????????????????????PPP??,?
  ???????????????PC/???,???????

11

• PPPoE??????,???????????????????????,??????????????
  ???????????,????????????????????,?????????????PPPo
  E????????LAN??(????),????????PPP????????,?ISP?????
  ?????????????,????Internet??????
  PPPoE????????????????????????????????,????????????
  ??
• PPPoE????????CPE?????,??????????ISP????,???RADIUS/
  PPP?????????????PPPoE???ISP???Back
  Office?????????,???????????????????PPP???????,????
  ???????,????????????PPP????,??????????????????????
  ????????????????,??????Per-user(??Per-site)???????
  ??

12

• ??PPPoE????Multi-PC????????????,??????????????????
  ?????????????????Internet?????????????,PPPoE??????
  ??????,??????????????,???????????Fiber To The
  Curb(FFTC)????PPPoE??????????????????Windows
  95??????,??????????xDSL???,????xDSL???????PPP?????
  ?
• ????,PPPoE?ISP???????????????,??
• ???????????,????????????
• ?????PPP?????????,???????????
• ???????
• ??Branded Internet Portal??,???????????,??????
  ????????

13

• ?.DHCP ????
• DHCP ( Dynamic Host Configuration Protocol
  )??????,?????????????IP??????????????,????TCP/IP??
  ?,?????????????????EtherNet Address??,??IP,???????
  ?TCP/IP?????,????????????IP,?????????????????IP???
  ?IP?????,??IP??????,???????IP ADDRESS?????,????30
  ???,???20?IP??,??30??????????,??????IP????,????IP
  ADDRESS???????????,???DHCP????????,????,??????????
  ,?????????,????????,??????DNS??????????DHCP????BO
  OTP?????,???????????????,?????????

14

• ???IP????????DHCP???????,?????????DHCP????????????
  ????????IP?????DHCP????????IP????,??????IP????????
  ????????,?????MAC????????IP??,????,???????????????
  ?,??????????
• ?.DHCP ????
• Automatic Allocation
• ????????????DHCP??????????DHCP???????IP???????
  ????????
• Dynamic Allocation
• ?????????,DHCP??????????????IP ADDRESS
  ??????????????????IP ??,??DHCP ???????????IP
  ?????????????????????????IP ??????????????,DHCP
  ???????????????IP ?????????????

15

• 1.IP????
• ?DHCP?????????????,??????????????IP?????,?????
  ???????????DHCP????????DHCPDISCOVER???????????????
  ???????,???????????0.0.0.0,???????255.255.255.255,
  ?????Dhcpdiscover???,????????????????????????MAC??
  ,??DHCP?????????????Dhcpdiscover????????1?????????
  ????Dhcpdiscover???????,?1???????????,???????Dhcpd
  iscover???????????????????????Dhcpdiscover??(?????
  ??)?????????1???,????????????9?13?16?????????DHCP?
  ?????,???????????,??Dhcpdiscover??????,????????,??
  ????5?????????Dhcpdiscover????

16
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17

• 2.??IP????
• ?DHCP????????????Dhcpdiscover???,DHCP?????????
  ????????????DHCPDISCOVER ????????DHCPOFFER,??DHCP?
  ???????????IP??,?????????????????????????????IP??,
  ????Dhcpdiscover???????MAC????,?????XID????????,DH
  CP??????Dhcpoffer??????????????????????????????,Dh
  cpoffer????????????????????DHCP?????????,?????????
  ????????????,?????????,?????????????
• 3.??IP??
• ????????????DHCP??????,????
  ????Dhcpoffer,??????????Dhcprequest????,????DHCP??
  ????????????????IP???

18
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19

• ???????????????ARP (Address Resolution
  Protocol)???????????????????IP????????IP??????????
  ?????Dhcpdeclient???DHCP?????????Dhcpoffer??????Dh
  cpdiscover??????,?????DHCP??????????DHCP????offer,
  ???????????TCP/IP???????????????Dhcprequest??????D
  HCP??????????????????DHCP Option Field???

?? ????
01 Sub-net Mask
03 Router Address
06 DNS Server Address
0F Domain Name
2C WINS/NBNS Server Address
2E WINS/NBT Node Type
2F NetBIOS Scope ID
20

• ???????DHCP?????????????????????????????????TCP/IP
  ???

21

• 4.IP????
• ?DHCP??????????Dhcprequest??,?????????Dhcpack??,??
  ?IP???????,????????DHCP ???,??????TCP/IP
  ???????????????DHCP?????
• ?????
• 1. ??DHCP??????????????DHCP????,???????????IP???
  ?????0.0.0.0,????????Dhcpdiscover??,????????????IP
  ???DHCP?????Dhcprequest??,DHCP???????????????IP???
  ????????????Dhcpack??????????????????????????,????
  ??????Dhcpnack??????,???????Dhcpdiscover???IP?????
  ???????,?NT????DHCP?????????????dhcprequest????,??
  ????????????dhcprequest,???????DHCP????????,??????
  ?????IP??????????????????(????75),????????,??????
  ??????IP??

22

• 2. ??????????(1)-(4)?????????DHCP
  client????IP-Address(??DHCPACK)????IP-Address?????
  ?,??DHCP client???DHCPDECLINE???,??????(1)-(4)????
  ??????IP-Adreess?DHCP client????IP-Address?,?????D
  HCPRELEASE???DHCP client???DHCP
  server??????,??????????,???DHCPINFORM???,????(1)-(
  4)??????????DHCP??? ??DHCP??????Dynamic??(???
  ???)?Automatic??(??????)?Static??(IP-Address?clien
  t???????,???DHCP server??),??????????
• 1.DHCP??????ROUTER,?ROUTER??RFC-1542?Relay-agent(b
  ootp-agent)???
• 2.DHCP?????DHCP client????IP-Address,???IP-Address
  ?????DHCP server IP-address??????

23

• 3.DHCP server?DHCP server?????,??????????????IP-Ad
  dress,??,?????????,DHCP server????IP-address??????
  ???
• 4.????,DHCP client????IP-Address,???????,??????
• 5.????DHCP IP-Address????,??????????????6.???????
  ?????DHCP client??????,???????????
• ????DHCP???
• ????????????????????DHCP?????????????????DHCP?
  ?????IP???????????Router???????Router??????DHCP???
  ?????????????? DHCP Agent (?DHCP
  Proxy)????????DHCP???????????????DHCP?????????????
  ???????,Proxy????????routing?????,?????????????DHC
  P???,?????,?????????,??,??????????????????????????
  ?????????????

24

• ??IEEE 802.1X ?
• IEEE 802.1X ??????????????(Port-Based
  Network Access Control)?????IEEE
  802.11????????????????
• IEEE 802.11????????????
• (1)???????????
• (2)???????????????
• ??IEEE 802.1X?????????????????????,???ISP
  (Internet Service Provider)??????????????????????
• ????????IEEE 802.1X????????????,???????EAPOL
  (Extensible Authentication Protocol Over
  LAN),????????????,?????????????(Digital
  Certificate)??????????????????????????????????????
  ???????????????????????,?????????????????
• 802.1X????????

25
(No Transcript)
26

• ? 802.1x ??????????? - Authenticator
  ???????????????????????? - Supplicant
  ???????,????? Authenticator ?????? - Port Access
  Entity(PAE) ??????????,?? Authenticator,
  Supplicant ??
• ????? - Authentication Server ?
  Authenticator ???????????,???
• Authenticator ???????,???????????
• ???????

27

• ??802.1X?????
• ??????????(Public Key Infrastructure,PKI)????(Toke
  n)????( Smartcard ) ,????????????,????????????????
  ??????????????,?????????????,????????????????
• ?????????,???????????????????(Virtual Local Area
  Network,VLAN)????
• ???????????,?????????????????????????

28

• ??????PPPoE /DHCP/IEEE802.1x???
• PPPoE
• ??
• _at_ ???PSTN??????????????????
• ?
• _at_ ?????????????????
• _at_ ????????????
• ??
• _at_ PPP???Ethernet?????????,PPP????
• ???????????,????????
• _at_ PPPoE???????????????,?????
• ???????
• _at_ ????????,??????????????
• _at_ ?????????????,???????
•     _at_ PPPoE????????BAS,?????,????
• ??????BAS??,???????????,?
• ???????????

29

• IEEE802.1x
• ??
• 1 802.1x???????,???????,????
• ????????802.1q?VLAN,???????
• ?????,???????????
• 2 ??????,????????????,???
• ????????
• ??
• 1 ?????????
• 2 ????????????802.1x???????
• ??,????????????????,??
• ????????????,?????????
• ????????????
• 3 IP???????????802.1x?????2?
• ??,???????????????,???
• ??????,??????IP???,????
• ????IP??????????????,

30

• ??,?????????802.1x,?????
• ?????????????????????
• ???????
• 4 ????802.1x??????????????
• ???????????,????????
• ?,???????????????????
• ???????

31

• DHCP
• ??
• 1 ?????????IP?????????,??
• ????????
• 2 DHCP?????????IP???????
• 3 DHCP??????????????????IP
• ??
• 4 ?????DHCP?????????
• 5 ???????????????????IP??
  ??
• 1 DHCP????????DHCP????????
• ?IP??
• 2 ????????DHCP????,??DHCP?
• ?????????????????IP??
• 3 DHCP???????????????