Enterprise and Service Provider networks

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In this document, I would like to provide some insights on the building blocks of a hybrid WAN (MPLS connection as private WAN and Internet connection as public WAN) and how we can combine its components to tackle the ever increasing bandwidth requirements of businesses. At the end of the discussion, I would like to provide two case studies where the first would detail how a service provider can offer Internet access to its VPN customers over its MPLS VPN backbone, whereas the second demonstrates how traffic can be offloaded from expensive MPLS links to IPsec encrypted DMVPN tunnels over business class Internet connections.

enterprise networks, service provider networks, MPLS, IPsec, DMVPN, PBR, hybrid WAN