MPLS cisco QOS VPN full juniper mpls

虚虚虚虚虚 VPN 虚

Juniper Networks, Inc. Copyright © 2001 - Proprietary & Conf
dential


虚虚虚虚


虚虚虚虚虚 VPN 虚虚虚



虚虚虚虚虚 BGP/MPLS VPN 虚 RFC
2547bis 虚



虚虚虚虚虚虚虚 MPLS VPN



虚虚


虚虚虚虚
VPN 虚虚

Juniper Networks, Inc. Copyright © 2001 - Proprietary & Conf
dential

虚虚虚
VPN 虚虚


VPN 虚虚



虚虚 CPE 虚 VPN



虚虚虚虚虚虚虚 VPN



IETF 虚虚虚虚


虚虚虚
VPN 虚虚


VPN 虚虚



虚虚 CPE 虚 VPN



虚虚虚虚虚虚虚 VPN



IETF 虚虚虚虚


虚虚虚 VPN 虚
虚虚虚虚

虚虚虚虚虚虚虚
虚虚虚虚虚虚虚
虚虚虚虚虚

虚虚
虚虚虚虚
虚虚虚虚

虚虚虚虚虚虚
虚虚虚虚虚虚






虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚
虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚

虚虚虚虚虚虚虚虚虚虚虚虚虚
虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚
虚虚虚虚虚 – 虚虚虚虚虚虚虚虚虚虚虚虚

Juniper Networks, Inc. Copyright © 20

虚虚虚虚虚虚虚虚虚

虚虚虚虚虚虚虚虚虚虚虚


90 虚虚虚虚虚 VPN
虚虚虚虚虚虚虚虚
虚虚虚虚虚虚虚虚

DLCI
DLCI
虚虚虚虚虚虚

DLCI
CE
CE



虚虚虚虚虚虚
虚虚虚虚虚虚

虚虚虚虚






虚虚虚虚虚虚
虚虚虚虚虚虚

PVC 虚虚虚虚虚虚虚虚虚虚 ATM/ 虚虚虚虚虚虚
虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚

虚虚
虚虚虚虚虚虚虚虚虚虚虚虚虚虚
 虚虚“虚虚”




虚虚
虚虚虚虚虚虚虚
 虚虚虚虚虚虚虚虚虚虚 IP 虚虚虚虚


Juniper Networks, Inc. Copyright © 20

CE
CE


21 虚虚虚虚虚 VPN
虚虚虚虚

虚虚虚虚虚虚虚
虚虚虚虚虚虚虚
Internet
虚虚虚虚

虚虚虚虚虚虚
虚虚虚虚虚虚


虚虚 IP 虚虚虚虚


虚虚虚 Internet 虚虚虚虚

IP/MPLS 虚虚虚虚 ATM/FR 虚虚虚虚虚虚虚虚虚
 虚虚虚虚







虚虚虚虚虚虚虚
虚虚虚虚虚虚虚虚虚虚虚虚虚

虚虚虚虚虚



虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚
虚虚虚虚虚虚虚虚

Juniper Networks, Inc. Copyright © 20

虚虚虚虚虚

虚虚虚虚虚虚虚虚虚

虚虚虚虚虚虚虚虚虚
虚虚


虚虚 VPN 虚虚不不虚虚虚虚虚虚虚
虚虚虚虚

虚虚虚

虚虚虚

虚虚虚

虚虚虚虚虚虚

虚虚虚虚虚虚

100

100

100

100

100

100

0

0

0

0

0

0



虚虚虚虚虚虚虚虚虚 VPN 虚虚



虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚


虚虚虚虚虚虚虚虚虚虚虚虚虚



虚虚虚虚 VPN 虚虚虚虚

Juniper Networks, Inc. Copyright © 20


VPN 虚虚虚虚
PP-VPN

CPE-VPN
CPE

CPE

PE
虚虚

PE
虚虚
虚虚 3

VPN

CPE



VPN 虚虚

虚虚
虚虚 3

CPE

虚虚虚虚虚 VPN 虚虚虚虚虚 CPE-VPN 虚





V
P

N

PE

L2TP 虚 PPTP
IPsec 虚虚虚虚

虚虚虚虚虚虚 VPN 虚虚虚虚虚 PP-VPN 虚




CPE

虚虚 BGP/MPLS 虚 VPN 虚 RFC 2547bis 虚
虚虚虚虚虚
虚虚 MPLS VPN

Juniper Networks, Inc. Copyright © 20

虚虚
虚虚 1

VPN 虚虚

PE

PE

虚虚
虚虚 2
虚虚

VPN 虚虚

VPN
虚虚

虚虚
虚虚 1

PE

虚虚

虚虚 2

CPE


虚虚虚
VPN 虚虚


VPN 虚虚



虚虚 CPE 虚 VPN



虚虚虚虚虚虚虚 VPN



IETF 虚虚虚虚


CPE-VPN 虚 L2TP 虚 PPTP
V.x 虚虚虚虚虚

虚虚虚虚
虚虚虚

虚虚虚虚虚虚虚

PPP 虚虚

L2TP
虚虚虚虚虚

L2TP 虚虚

虚虚虚虚
虚虚虚

虚虚虚虚虚虚 VPN
PPTP 虚虚

虚虚虚虚虚虚虚虚虚虚虚
 虚虚虚虚虚虚虚 L2TP 虚


RFC 2661
 L2F 虚虚虚虚虚虚虚虚虚虚虚




虚虚虚虚虚虚虚虚 PPTP 虚


虚 Windows 虚 Windows NT 虚虚

虚虚虚 IPsec 虚虚虚虚
 虚虚虚虚虚虚虚虚虚虚虚虚虚


Juniper Networks, Inc. Copyright © 20

PPTP
虚虚虚虚虚


CPE-VPN 虚 IPsec 虚虚虚虚



IPsec 虚虚虚 IETF 虚虚虚虚虚虚虚虚虚
虚虚





虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚
虚虚虚虚虚虚虚虚

虚虚虚虚虚虚虚








虚虚虚虚
虚虚虚虚虚虚
虚虚虚虚
虚虚虚虚虚
虚虚虚虚虚虚虚虚虚
虚虚虚虚

Juniper Networks, Inc. Copyright © 20


CPE-VPN 虚 IPsec – 虚虚
虚虚 Internet
虚虚虚虚

虚虚虚虚虚
CPE

CPE

IPsec ESP 虚虚虚虚





虚虚虚虚虚 CPE 虚虚虚
虚虚虚虚虚虚虚虚
虚虚 CPE 虚虚虚虚虚虚 IPsec





虚虚虚虚虚虚 / 虚虚虚虚虚虚虚虚

虚虚虚虚虚虚虚虚虚 ESP 虚虚虚虚虚




虚虚虚虚虚虚虚 CPE 虚 CPE 虚
虚虚虚虚虚虚虚 / 虚虚虚虚虚虚 Internet
虚虚虚虚虚虚虚虚

Juniper Networks, Inc. Copyright © 20


IPsec 虚虚
虚虚 Internet
虚虚虚虚

虚虚虚虚虚
CPE

CPE

IPsec ESP 虚虚虚虚



虚虚虚虚虚虚虚虚虚虚虚 IP 虚虚


虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚

虚虚虚 QoS/SLA
 虚虚虚虚虚虚虚
 虚虚虚虚虚虚虚虚虚
 虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚


Juniper Networks, Inc. Copyright © 20


虚虚虚
VPN 虚虚


VPN 虚虚



虚虚 CPE 虚 VPN



虚虚虚虚虚虚虚 VPN



IETF 虚虚虚虚


虚虚虚虚虚虚虚 VPN 虚
虚虚虚虚虚虚虚
虚虚

虚虚



虚虚虚虚虚虚虚虚虚虚虚虚虚虚



虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚



虚虚虚虚虚虚虚虚虚 VPN 虚虚虚虚虚虚
虚虚虚虚虚虚虚虚虚虚虚



虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚
虚虚



虚虚虚虚虚虚虚虚虚虚



CPE 虚虚虚虚虚虚虚虚虚虚虚虚虚

Juniper Networks, Inc. Copyright © 20


虚虚 PP-VPN 虚
RFC 2547bis
虚虚 1

虚虚虚虚虚虚虚

CE

PE

PE

P

VRF

CE
VRF

虚虚 3

VRF

虚虚 2

CE

CE

P

P

P
CE

虚虚 3







VRF
VRF

虚虚 2

CE
PE

P

VRF

PE

虚虚虚虚虚 VPN
PE 虚虚虚虚虚虚 VPN 虚虚虚虚虚虚虚虚虚虚虚虚虚虚
虚虚虚虚虚虚虚虚虚虚虚 IP 虚虚
虚虚 BGP 虚虚 VPN 虚虚
虚虚 MPLS 虚虚虚虚虚虚虚虚虚 VPN 虚虚虚虚虚虚
Juniper Networks, Inc. Copyright © 20

虚虚 1


虚虚 PP-VPN 虚
RFC 2547bis
虚虚 LDP 虚 RSVP 虚虚 PE 虚 PE 虚虚虚虚虚虚虚虚 LSP 虚
 BGP 虚虚虚虚


VPN 虚虚虚虚虚虚虚虚
 VPN 虚虚虚虚虚虚虚
 虚虚 VPN LSP 虚虚虚虚虚虚虚 PE-PE LSP 虚虚虚虚




虚虚虚虚虚虚虚虚虚虚虚虚虚


虚虚虚虚虚虚虚虚虚虚虚虚虚

Juniper Networks, Inc. Copyright © 20


虚虚 PP-VPN 虚
虚虚虚虚虚


PE 虚虚虚虚虚虚虚虚虚虚虚 IP 虚虚虚



虚 VPN 虚虚虚虚虚虚



PE 虚虚虚虚虚虚



虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚


PE 虚虚 VR 虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚



虚虚虚 MPLS 虚虚虚虚虚虚虚虚虚

Juniper Networks, Inc. Copyright © 20


虚虚虚虚虚虚虚虚


VPN 虚虚虚虚




虚虚虚虚虚虚




虚虚虚虚虚 BGP 虚虚虚虚 LDAP 虚虚虚虚
虚虚虚虚虚虚虚虚不不虚虚虚虚

虚虚虚
虚虚 VR 虚虚虚虚
 虚虚虚虚虚虚虚虚“虚虚虚虚”




虚虚虚虚



虚虚 2547bis 虚虚虚虚

Juniper Networks, Inc. Copyright © 20


虚虚 PP-VPN 虚虚




虚虚


虚虚虚虚虚虚虚虚虚虚虚虚



虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚

虚虚虚


虚虚虚虚虚虚虚虚虚虚虚虚虚虚 VPN 虚虚虚虚虚虚虚



虚虚虚虚虚虚虚虚虚虚

Juniper Networks, Inc. Copyright © 20


3 虚 PP-VPN 虚虚


虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚



虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚虚

Juniper Networks, Inc. Copyright © 20


虚虚 MPLS 虚虚虚 PP-VPN
虚虚虚虚虚虚 (CCC)
 Draft-Martini 虚虚 VPN
 Draft-Kompella 虚虚 VPN


Juniper Networks, Inc. Copyright © 20


虚虚虚虚虚虚虚 CCC 虚
CCC = 虚虚虚虚虚虚

CCC 虚
虚虚

“ 虚虚虚虚虚虚”
( 虚虚虚虚 )

LSP1 DLCI 605

CE

虚

DLCI
600

虚虚虚








虚虚

10.0.0.0

LSP 1

PE

PE

虚虚
IP/MPLS 虚虚

DLCI
610

虚虚

“ 虚虚虚虚虚虚”
( 虚虚虚虚 )

虚虚

PE
PE

CCC 虚
虚虚

LSP 2

虚虚

10/8 DLCI 600

DLCI 600 LSP 1

20/8 DLCI 610

DLCI 610 LSP 2

DLCI CE
605

DLCI
608

CE

CCC 虚
虚虚
虚虚
LSP2 DLCI 608

虚虚虚 MPLS 虚虚虚 VPN 虚虚虚虚
CPE 虚 PE 虚虚虚 FR/ATM 虚虚
虚虚虚虚虚虚虚 PE 虚虚 LSP 虚虚虚虚虚
CPE 虚虚虚虚 /PVC 虚虚虚 VPN 虚虚虚虚虚虚
虚虚 PE 虚虚虚虚虚 PVC 虚虚虚虚虚虚虚 LSP
虚虚 PE 虚虚虚虚 LSP 虚虚虚虚虚 PVC

Juniper Networks, Inc. Copyright © 20

20.0.0.0

“ 虚虚虚虚虚虚”
( 虚虚虚虚 )