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Диплом MPLS VPN

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31. , VPN . MPLS VPN61.1 , VPN .61.2 VPN- 7 1.2.1 TDM8 1.2.2 VPN- 10 1.2.3 VPN- 11 1.2.4 VPN- 3- 131.3 VPN- 16 1.3.1 VPN- IP16 1.3.2 VPN- MPLS181.4 VPN-201.5 VPN- MPLS201.6 261.7 272. MPLS VPN. MPLS VPN.282.1 VPN- MPLS28 2.1.1 VPN30 2.1.2 VPN-32 2.1.3 MPLS342.2 36 2.2.1 -36 2.2.1.1 38 2.2.1.2 - 39 2.2.1.3 41 2.2.1.4 43 2.2.2 43 2.2.3 52 2.2.3.1 IGP52 2.2.3.2 VPN- 53 2.2.3.3 -54 2.2.3.4 -55 2.2.3.5 -56 2.2.3.6 -57 2.2.3.7 QoS VPN- MPLS58 2.2.3.8 VPN-c QoS63 2.3 ....653. 653.1 663.2 68 3.2.1 68 3.2.2 71 3.3 744. VPN-754.1 754.2 814.3 864.4 914.5 954.6 9798 99 100 2:100 3101 4102 5103 105 105 108 111

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. , , . , , , , ., , , . , , , . , . VPN , [5]. VPN . , , [8]. , VPN, VPN-. , , MPLS, , , . , MPLS IP ATM, , , . MPLS , , IETF, MPLS, , ., IP- MPLS (QoS), , , . QoS , , , . , , VPN MPLS, , . VPN MPLS. : , VPN; VPN MPLS; VPN MPLS; VPN , . , VPN MPLS.

1. , VPN . MPLS VPN1.1 , VPN . (Virtual Private Network VPN) TDM .25 . Frame Relay ATM .25 . VPN, , . " " (VPN) .25, Frame Relay ATM [15]. (Enterprise Network Management) IP-[8]. (outsourcing) , . IP (Managed IP) (Service-Level Agreement SLA) (end-to-end) (QoS) [6].VPN- IP . (value-added) VPN-. VPN, (IP Security - IPSec) (Multiprotocol Label Switching MPLS). VPN. VPN- IP Cisco IOS VPN- 3- IP 4 (IPv4). VPN- IP , , , , . IP . (WAN). , ( , ). , , (Electronic Data Interchange EDI) . , VPN- IP, .1.2 VPN- VPN- 2- 3- . VPN- 2- "-", Frame Relay ATM. VPN- 3- VPN, - IPSec ( ) (Generic Routing Encapsulation GRE).VPN- , (intranet extranet) , . (Point of Presence ) ISP Internet . VPN- . , VPN- . , VPN- 3- Internet (Quality of Service QoS) . (telecom management) ATM Frame Relay [13]. VPN- , . , .VPN- 2- VPN- . , (.. ).1.2.1 TDM . , , . DS1 DS3, , , 1 . 1.1, , , . DACS (Digital Automatic and CrossConnect System ). . 1.2 , . TDM , . , 64 / ( DS0). TDM .

1.1 VPN-

1.2 VPN

1.2.2 VPN- VPN- , Frame Relay .25, , . 1.3, , . , . PVC SVC (CIR) ( local loop).

1.3 VPN- Frame Relay

1.4 Frame Relay. (Points of Presence POPs) TDM. Frame Relay CPE- FRAD (, ) Frame Relay. Frame Relay Frame Relay ATM ATM. Frame Relay . .25 2- .25, 3- .25, Frame Relay, 2- . .25 SVC PVC, (Logical Channel Identifier LCI).

1.4 VPN Frame Relay

LCI 4- (Logical Group Number LGN) 8- (Logical Channel Number LCN). .25 2- (Link Access Procedure Balanced LAPB).1.2.3 VPN- VPN- , ATM SMDS, , (SVC) (PVC) . , 1.5, . , . PVC SVC : CBR, VBR-RT, VBR-NRT, ABR UBR. ATM PVC (soft PVC), SVC PVC.

1.5 VPN- ATM

1.6 ATM. (Points of Presence POPs) ATM TDM SONET/SDH . - () ATM 2- IP 3- .

1.6 VPN- ATM

1.2.4 VPN- 3- VPN- 3- , , VPN. GRE IP Security (IPSec) "-" IP Internet, (Virtual Private Dialup Network VPDN) Internet , . VPN- (Generic Route Encapsulation GRE) IP- "-". GRE- VPN-. GRE- , , GRE- . 1.7, GRE- VPN- IP- . 3- , IP, IP-.

1.7 VPN- GRE and IPSec

VPN- IPSec , , IP- [5]. IPSec, , , , IP-, Internet. IPSec "-" VPN- IP-. IPSec - , , , VPN- IPSec (Managed IPSec). , IPSec, 1.7. , , IPSec VPN-.VPDN-, L2F L2TP, , , IPSec. IPSec (Data Encryption Standard DES), 168- 3DES . (Public Switched Telephone Network PSTN) ISDN. 1.8, (Virtual Private Dialup Network VPDN) IP- . VPDN IP- , 2- (Layer 2 Forwarding L2F) 2- (Layer 2 Tunneling Protocol L2TP). (Network Access Server NAS), . NAS L2F L2TP . , NAS, , . , (Authentication, Authorization and Accounting AAA) AAA, TACACS+. . VPN- , VPDN, : "--".

1.8 (VPDN)

"-" (Point-to-Point Tunneling Protocol PPTP), "-" Microsoft (Microsoft Point-to-Point Encryption MPPE), VPN- Cisco PPTP [12]. VPN IP-. ( , , client-initiated tunneling), NAS . VPN-. "-" Microsoft (Microsoft Point-to-Point Compression MPPC). 40 128 . . , , . Cisco- Microsoft , .1.3 VPN- VPN- . 3- . .1.3.1 VPN- IP IP (managed IP services), IP- IP- . IP IP- 2- , ATM Frame Relay. VPN- IP 1.9.

1.9 VPN- IP

. , Cisco (Cisco Routing engine) , . . . , RIP , EIGRP , . , Cisco, , 30 IP-. ( ): 30 IGRP-; 30 OSPF-; IS-IS; RIP; BGP; 30 EGP. VPN- IP , . , IP-, . , , VPN-.1.3.2 VPN- MPLSVPN- MPLS . MPLS 2- . . MPLS , Frame Relay ATM , VPN , , . VPN- MPLS 1.10. , . .

1.10 MPLS

MPLS , CPE- , CPE-, VPN. VPN- . , VPN-, VPN. , , , , . , (VPN Routing and Forwarding VRF). , LSR-. LSR- (Provider ) , . MPLS VPN- 3- 2- [5]. . 1.4 VPN- VPN- MPLS, IPSec. , VPN Internet. 1.1 VPN , , , .

1.1 VPN- 2- 3- VPN- MPLS

, ,

, , , (traffic separation),

1.1 2- 3- VPN- MPLS

VPN

QoS

VPN

1.5 VPN- MPLS VPN- MPLS: ; ; VPN; ; ; ; ; ( ); ; ; ; ; Cisco- (Cisco Service Management CSM). MPLS , , , . VPN-. VPN MPLS 3- VPN- . , (Provider Edge router -router), (Customer Edge router CE-router), VPN-. VPN- 3- , (VC).VPN- MPLS , VPN- (Frame Relay ATM). VPN- VPN, , , , VPN- [7]. VPN- . ( -) , IP- , VPN-. VPN VPN- "-" . (.. intranet extranet) . VPN- VPN-, . MPLS , , . MPLS CPE, CPE- MPLS . VPN , , . , RFC 1918 IP- . VPN- MPLS (Network Address Translation NAT) , . NAT , VPN- . IP-. MPLS , . Cisco IOS Cisco IP . , (SLA). MPLS QoS . () , .

(Traffic Engineering Routing with Resource Reservation RRR), RSVP . RRR , IP- . . VPN- 3- VPN. VPN- intranet-, . , (intranet extranet). MPLS , IP- : ; ; VPN; VPN; "--". VPN- IP. QoS VPN: ; VPN- MPLS. , , , . . VPN . VPN- MPLS , , IP, ATM, Frame Relay . , MPLS, .

1.6 , 1, VPN MPLS, Dynampis GNS3, . , . . , . . , RIP 2, OSPF , . . . , , Platinum, Gold Silver. 384 / - , 512 / B 768 / . . . . : , , .

1.7 " " (Virtual Private Network VPN) . VPN IP . IPSec MPLS .VPN- 2- 3- . 2- VPN- Frame Relay ATM. VPN- 3- 2- IPSec (L2TP), 2- (Layer 2 Forwarding L2F) (Generic Routing Encapsulation GRE). VPN- VPDN (Access VPDN).VPN- . 3- . . VPN- VPN- IP VPN- MPLS. VPN- : MPLS IPSec. , , ,

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