Cisco Cisco IOS Software Release 12.2(14)SX
1
Cisco IOS Release 12.2(14)S
MPLS Virtual Private Networks (VPNs)
The IP Virtual Private Network (VPN) feature for Multiprotocol Label Switching (MPLS) allows a
Cisco IOS network to deploy scalable IPv4 Layer 3 VPN backbone services. An IP VPN is the
foundation companies use for deploying or administering value-added services including applications
and data hosting network commerce, and telephony services to business customers. In private LANs,
IP-based intranets have fundamentally changed the way companies conduct their business. Companies
are moving their business applications to their intranets to extend over a WAN. Companies are also
embracing the needs of their customers, suppliers, and partners by using extranets (an intranet that
encompasses multiple businesses). With extranets, companies reduce business process costs by
facilitating supply-chain automation, electronic data interchange (EDI), and other forms of network
commerce. To take advantage of this business opportunity, service providers must have an IP VPN
infrastructure that delivers private network services to businesses over a public infrastructure.
Cisco IOS network to deploy scalable IPv4 Layer 3 VPN backbone services. An IP VPN is the
foundation companies use for deploying or administering value-added services including applications
and data hosting network commerce, and telephony services to business customers. In private LANs,
IP-based intranets have fundamentally changed the way companies conduct their business. Companies
are moving their business applications to their intranets to extend over a WAN. Companies are also
embracing the needs of their customers, suppliers, and partners by using extranets (an intranet that
encompasses multiple businesses). With extranets, companies reduce business process costs by
facilitating supply-chain automation, electronic data interchange (EDI), and other forms of network
commerce. To take advantage of this business opportunity, service providers must have an IP VPN
infrastructure that delivers private network services to businesses over a public infrastructure.
MPLS VPNs offer the following benefits:
•
A platform for rapid deployment of additional value-added IP services, including intranets,
extranets, voice, multimedia, and network commerce
extranets, voice, multimedia, and network commerce
•
Privacy and security equal to that provided by Layer 2 VPNs by limiting the distribution of a VPN's
routes to only those routers that are members of the VPN seamless integration with customer
intranets
routes to only those routers that are members of the VPN seamless integration with customer
intranets
•
Increased scalability over current VPN implementations, with thousands of sites per VPN and
hundreds of thousands of VPNs per service provider IP class of service (CoS), with support for
multiple classes of service and priorities within VPNs, as well as between VPNs
hundreds of thousands of VPNs per service provider IP class of service (CoS), with support for
multiple classes of service and priorities within VPNs, as well as between VPNs
•
Management of VPN membership and provisioning of new VPNs for rapid deployment
•
Scalable any-to-any connectivity for extended intranets and extranets that encompass multiple
businesses
businesses