Summary
Many service providers that wanted to minimize their costs of provisioning and operations by offering all their services (VPN and public Internet) over a common infrastructure have enthusiastically embraced MPLS-based VPN networks. Furthermore, these service providers have achieved significant cost savings due to the provisioning simplicity offered by MPLS VPN's integration with the benefits of both connectionless and connection-oriented VPN approaches.
An end-to-end MPLS VPN solution is, like any other VPN solution, divided into the central P-network to which a large number of customer sites (sites in the C-network) are attached. The customer sites are attached to the PE devices (PE routers) through CE devices (CE routers). Each PE router ...
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