© 2006 Cisco Systems, Inc. All rights reserved. MPLS v2.24-1 MPLS VPN Technology Categorizing VPNs. - презентация

1 © 2006 Cisco Systems, Inc. All rights reserved. MPLS v MPLS VPN Technology Categorizing VPNs

2 © 2006 Cisco Systems, Inc. All rights reserved. MPLS v Outline Overview What Are the Business Categories for VPNs? What Are Extranet VPNs? What Are the Connectivity Categories for VPNs? What Is the Central Services Extranet? What Is a Managed Network Implementation? Summary

3 © 2006 Cisco Systems, Inc. All rights reserved. MPLS v VPN Business Category VPNs can be categorized based on the business needs that they fulfill: Intranet VPNs connect sites within an organization. Extranet VPNs connect different organizations in a secure way. Access VPNs (VPDNs) provides dialup access into a customer network.

4 © 2006 Cisco Systems, Inc. All rights reserved. MPLS v Extranet VPNs: Overlay VPN Implementation

5 © 2006 Cisco Systems, Inc. All rights reserved. MPLS v Extranet VPNs: Peer-to-Peer VPN Implementation

6 © 2006 Cisco Systems, Inc. All rights reserved. MPLS v VPN Connectivity Category VPNs can also be categorized according to the connectivity required between sites: Simple VPN: Every site can communicate with every other site. Overlapping VPNs: Some sites participate in more than one simple VPN. Central services VPN: All sites can communicate with central servers but not with each other. Managed network: A dedicated VPN is established to manage CE routers.

7 © 2006 Cisco Systems, Inc. All rights reserved. MPLS v Central Services Extranet

8 © 2006 Cisco Systems, Inc. All rights reserved. MPLS v Managed Network Overlay VPN Implementation

9 © 2006 Cisco Systems, Inc. All rights reserved. MPLS v Central Services Extranet: Hybrid (Overlay + Peer-to-Peer) Implementation

10 © 2006 Cisco Systems, Inc. All rights reserved. MPLS v Summary There are three VPN business categories: intranet VPN, extranet VPN, and access VPN. In an extranet VPN, organizations are linked with dedicated virtual circuits. There are four VPN connectivity categories: simple VPN, overlapping VPN, central service VPN, and managed network. A central services extranet enables customers to access common servers for services. Managed networks allow customer CE devices to be owned and managed by the service provider.

11 © 2006 Cisco Systems, Inc. All rights reserved. MPLS v