There are many benefits to extending a core MPLS network further into the access space. These range from consistent management, multiple services, QoS, and resiliency. However, when doing so, the number of MPLS nodes would increase significantly. Its important in such situations to rely on the fundamental network design principals of partitioning a network, and using the label stacking and inherent hierarchical capabilities of MPLS to stretch MPLS beyond the limits of previous circuit switched technologies.
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