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Increasing numbers of enterprises are outsourcing their backbone WAN connectivity to MPLS VPN service providers. MPLS VPN WAN services have been gaining in market traction against Frame Relay due to availability of higher bandwidth links, and their price advantage when delivering "Full mesh" application traffic between many sites in the network, as opposed to simple hub and spoke. In addition, the outsourcing of the IP network backbone reduces the need to engineer those IP links. However, MPLS VPN WAN services come with some serious liabilities in terms of network management. Namely, once deployed, IT loses visibility into routing connectivity and reachability across their WAN backbone.

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Format:PDFSize:508 KB
Date:Oct 2007
Pages:11

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