Bgp/Mpls Vpn C; Bgp/Mpls Vpn Overview - 3Com 8807 Configuration Manual

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BGP/MPLS VPN
Overview

BGP/MPLS VPN C

Traditional VPN, for which layer 2 tunneling protocols (L2TP, L2F and PPTP, and so
on.) or layer 3 tunnel technology (IPSec, GRE and so on.) is adopted, is a great
success and is therefore widely used. However, along with the increase of the size
of VPNs , the deficiency of traditional VPN in such aspects as expansibility and
manageability becomes more and more obvious. In addition, QoS (Quality of
Service) and security are also the difficult problem for traditional VPN.
Using the MPLS technology, service providers can implement the IP-based VPN
services easily and enable their networks to meet the expansibility and
manageability requirement for VPN. The VPN constructed by using MPLS also
provides the possibility for the implementation of value-added service. Multiple
VPNs can be formed from a single access point, and each VPN represents a
different service, making the network able to transmit services of different types in
a flexible way.
Product currently provides comparatively complete BGP/MPLS VPN networking
capabilities:
Address isolation, allowing the overlap of address of different VPNs and public
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networks.
Supporting MBGP advertising VPN routing information through public
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network, establishing BGP/MPLS VPN.
Forwarding VPN data stream over MPLS LSP.
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Providing MPLS VPN performance monitoring and fault detecting tools.
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ONFIGURATION