Click here to load reader

MPLS - VPN

  • View
    89

  • Download
    0

Embed Size (px)

Text of MPLS - VPN

  • 1

    Cng ngh MPLS v ng dng trong IP VPN Nguyn Qunh Trang CHTVT 2006

    B GIO DC V O TO TRNG I HC BCH KHOA H NI

    ---------------------------------------

    LUN VN THC S KHOA HC

    CNG NGH MPLS V NG DNG TRONG MNG IP VPN

    NGNH : IN T VIN THNG M S:23.04.3898

    NGUYN QUNH TRANG

    Ngi hng dn khoa hc : TS. PHM NGC NAM

    H NI 2008

  • 2

    Cng ngh MPLS v ng dng trong IP VPN Nguyn Qunh Trang CHTVT 2006

    LI CAM OAN

    Knh gi : Trung tm o to v Bi dng sau i hc - Trng i hc Bch khoa H ni

    Tn ti l : Nguyn Qunh Trang

    Sinh ngy: 12 03 1982

    Hc vin cao hc kha 2006 2008

    Ti xin cam oan, ton b kin thc v ni dung trong bi lun vn ca

    mnh l cc kin thc t nghin cu t cc ti liu tham kho trong v ngoi

    nc, khng c s sao chp hay vay mn di bt k hnh thc no hon

    thnh bn lun vn tt nghip cao hc chuyn ngnh in t Vin thng.

    Ti xin chu hon ton trch nhim v ni dung ca lun vn ny trc

    Trung tm o to v Bi dng sau i hc Trng i hc Bch khoa

    H ni.

  • 3

    Cng ngh MPLS v ng dng trong IP VPN Nguyn Qunh Trang CHTVT 2006

    MC LC LI CAM OAN ............................................................................................. 2 MC LC......................................................................................................... 3 T VIT TT .................................................................................................. 5 DANH MC CC HNH V .......................................................................... 7 LI M U ................................................................................................... 9 CHNG 1..................................................................................................... 12 TNG QUAN V CNG NGH MPLS....................................................... 12

    1.1 Gii thiu v chuyn mch a giao thc (MPLS)............................. 12 1.2 Lch s pht trin v cc u im ca MPLS ................................... 14

    1.2.1 Cc li ch ca MPLS................................................................. 14 1.2.2 c im vt tri ca MPLS so vi m hnh IP over ATM.... 17 1.2.3 BGP Free Core ........................................................................ 19 1.2.4 Lung lu lng quang .............................................................. 21

    1.3 ng dng ca mng MPLS............................................................... 22 1.3.1 Mng ring o VPN.................................................................... 22 1.3.2 iu khin lu lng trong MPLS............................................. 23 1.3.3 Cht lng dch v trong MPLS (QoS) ..................................... 26

    CHNG 2..................................................................................................... 29 CNG NGH CHUYN MCH MPLS ....................................................... 29

    2.1 Cu trc ca nt MPLS ..................................................................... 29 2.1.1 Mt phng chuyn tip (Forwarding plane): .............................. 30 2.1.2 Mt phng iu khin (Control Plane): ...................................... 38

    2.2 Cc phn t chnh ca MPLS............................................................ 40 2.2.1 LSR (label switch Router) .......................................................... 40 2.2.2 LSP (label switch Path) .............................................................. 42 2.2.3 FEC (Forwarding Equivalence Class) ........................................ 43

    2.3 Cc giao thc s dng trong MPLS .................................................. 45 2.3.1 Phn phi nhn ........................................................................... 45 2.3.2 Giao thc t trc ti nguyn ................................................... 53

    CHNG 3..................................................................................................... 61 MNG RING O MPLS VPN .................................................................... 61

    3.1 Gii thiu v MPLS VPN.................................................................. 61 3.1.1 nh ngha VPN ......................................................................... 61 3.1.2 M hnh Overlay VPN v Peer to Peer VPN ............................. 63 3.1.3 M hnh mng MPLS VPN ........................................................ 71

    3.2 Cc thnh phn chnh ca kin trc MPLS VPN.............................. 76 3.2.1 VRF - Virtual Routing and Forwarding Table ........................... 76 3.2.2 RD Route Distinguisher .......................................................... 80 3.2.3 RT Route targets...................................................................... 82

  • 4

    Cng ngh MPLS v ng dng trong IP VPN Nguyn Qunh Trang CHTVT 2006

    3.2.4 Hot ng ca mt phng iu khin MPLS VPN..................... 87 3.2.5 Hot ng ca mt phng d liu MPLS VPN .......................... 89 3.2.6 nh tuyn VPNv4 trong mng MPLS VPN ............................. 91 3.2.7 Chuyn tip gi trong mng MPLS VPN................................... 93

    CHNG 4..................................................................................................... 99 NG DNG CA MPLS TRONG VIC CUNG CP DCH V IPVPN CA EVNTELECOM .................................................................................... 99

    4.1 ng dng MPLS trong mng IP core ca EVNTelecom................ 100 4.1.1 Dch v knh thu ring leased line ......................................... 103 4.1.2 Dch v IP VPN........................................................................ 103

    4.2 Cht lng dch v mng EVNTelecom......................................... 106 4.3 Gii thiu v vic cp knh ti khch hng .................................... 112 4.4 Kh khn trong vic cung cp MPLS VPN .................................... 113

    KT LUN V KIN NGH....................................................................... 115 TI LIU THAM KHO............................................................................. 118

  • 5

    Cng ngh MPLS v ng dng trong IP VPN Nguyn Qunh Trang CHTVT 2006

    T VIT TT ASIC Application Specific Intergrated

    Circuits Mch tch hp chuyn dng

    ATM Asynchnorous Tranfer Mode Truyn dn khng ng b

    AToM Any Transport over MPLS Truyn ti qua MPLS

    BGP Border Gateway Protocol Giao thc cng bin

    CE Custome Edge Bin pha khch hng

    CEF Cisco Express Forwarding Chuyn tip nhanh ca Cisco

    CoS Class of Service Cp dch v

    CQ Custom Queue Hng i ty

    CR Constraint-based routing nh tuyn rng buc

    DiffServ Differentiated Services Dch v khc bit

    DSCP DiffServ Code Point M im dch v khc bit

    DS-TE DiffServ-aware MPLS Traffic Engineering

    Cng ngh iu khin lung MPLS quan tm ti DiffiServ

    E-LSR Egress LER

    LER bin ra

    FEC Forwarding Equivalency Class Lp chuyn tip tng ng

    FTP File Tranfer Protocol Giao thc truyn file

    GRE Generic Routing Encapsulation ng gi nh tuyn chung

    HDLC High Data Link Control iu khin kt ni d liu tc cao

    IETF Internet Engineering Task Force

    y ban t vn k thut Internet

    IGP Interior Gateway Protocol Giao thc nh tuyn trong phm vi min

    I-LSR Ingress LSR LSR bin vo

    IntServ Integrated Services Dch v tch hp

  • 6

    Cng ngh MPLS v ng dng trong IP VPN Nguyn Qunh Trang CHTVT 2006

    IP Internet Protocol Giao thc Internet

    IS-IS Intermediate System to Intermediate System Protocol

    Giaot thc h thng trung gian ti h thng trung gian

    LAN Local Area Network Mng a phng

    LDP Label Distribution Protocol Giao thc phn phi nhn

    LER Label Edge Router B nh tuyn nhn bin ra

    LFIB Label Forwarding Information Base

    C s thng tin chuyn tip nhn

    LIB Label Information Base Bng c s d liu nhn

    LSP Label Switch Path Tuyn chuyn mch nhn

    LSR Label Switch Router B nh tuyn chuyn mch nhn

    MAC Media Access Control iu khin truy nhp mi trng

    MPLS Multiprotool Label Switching Chuyn mch nhn a giao thc

    MP-BGP MPLS border gateway Protocol a giao thc cng bin

    OSPF Open Shortest Path First Giao thc OSPF

    OUI Organizationally Unique Identifier

    Nhn dng duy nht t chc

    PE Provider Edge Bin nh cung cp

    PPP Point-to-Point Protocol Giao thc im - im

    PQ Priority Queue Hng i u tin

    PVC Permanent Virtual Circuit Mch o c nh

    QoS Quanlity of Service Cht lng dch v

    RD Route Distinguisher B phn bit tuyn

    RFC Request for comment Cc ti liu chun do IETF a ra

    RSVP Resource Reservation Protocol Giao thc dnh sn ti nguyn

  • 7

    Cng ngh MPLS v ng dng trong IP VPN Nguyn Qunh Trang CHTVT 2006

    RT Route Targets Tuyn ch

    SLA Service Level Agreements Tha thun cp dch v

    SP Service Provider Nh cung cp

    SVC Switch Virtual Connection Chuyn mch kt ni o

    TCP Tranmission Control Protocol Giao thc iu khin truyn dn

    TDP Tag Distribution Protocol Giao thc phn phi tag

    TE Traffic Engineering K thut iu khin lu lng

    TTL Time To Live Thi gian sng

    UDP User Datagram Protocol Giao thc UDP

    UNI User-to-Network Interface Giao din ngi dng ti mng

    VC Virtual Channel Knh o

    VCI Virtual Channel Identifier nh danh knh o

    VoATM Voice over ATM Thoi qua ATM

    VoIP Voice over IP Thoi qua IP

    VP Virtual Path Tuyn o

    VPI Virtual Packet Indentifier nh danh gi o

Search related