[e-mail]

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??????

• ???
• ??????????????
• james_at_ustc.edu.cn
• http//202.38.64.40/james/nms
• Tel [phone](O)

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?7? VPN?????

• ??????
• VPN??
• Access VPN
• LAN-LAN VPN
• MPLS VPN
• L2VPN

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????

• ????
• ???????????????,?????,???????
• Cisco Networkers 2003
• SEC-2011 Deploying Site-to-Site IPSec VPNs

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MPLS??

• ????????,??????????
• ????
• ??????????,????,???,???
• ????????????
• ???
• ?????,??????(???,??ttl,??????)????,??
• FR?IP?

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MPLS??

• ATM???,?????2?????
• ????????????????????
• ??????(??VPI/VCI????)
• ???53?????
• ?????,??????,???
• ?????MPLS?????
• MPLS?label???ATM?VPI/VCI??

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MPLS??
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MPLS??

• ????????????
• ????????,????????????label??,????????
• ????????,???????????,??????
• BGP?LDP?RSVP
• AToM, Any Transport over MPLS

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MPLS L3 VPN

• MPLS?????label?,?????????
• ???????????VPN?????label,?????????????VPN?????????
  ?,?????????VPN?????
• ????????????VPN???????,?????label??

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??

• CE Customer Edge router(also referred to as CPE)
• PE Provider edge router
• P Provider core router
• VRF Virtual Routing and Forwarding

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MPLS L3 VPN

• P?PE?????? OSPF?IS-IS????????LDP??,?????????????MP
  LS LDP??
• PE??????BGP 4????,??VPN?????
• CE?PE?????????,?????????
• VPN???IP????????PE???,?P???

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MPLS L3 VPN

• ???????PE????
• ??
• ??VPN???????????????BGP 4??,???VPN?????????????PE?
  ??,?????????????????????????????BGP4???????
• ?BGP??????????
• ????,????????IPsec

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MPLS VPN???

• ????
• ??L3VPN,??MPLS??????????????3???,?????????
• ??L2VPN,??MPLS????????IP??,????????FR?????
• ???
• ?????????????

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????

• ??????
• 2???????????
• ???????snmp??
• ??????????
• ?????????
• ????????
• VPN?????

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????(1)

• 1. ??????????????????48?10/100M???2?1000M?????????
  ????????
• 2. 100M??????????pps???????
• 3. ????2????????????,????????????????????
• 4. ??????snmp??????????arp?,????MIB???????
• 5. ???????,????????????????????????????????????

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????(2)

• 6. ???1T??????,?????4??,????????,???????????20MB/s
  ,????????????????????,????????????????
• 7. Fibre Channel Ports?????
• 8. ???????????????
• 9. ??MPLS VPN??????????????
• 10. ???????????????????