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In this paper the authors go beyond the marketing hype and look closely at the underlying concepts behind MPLS and PBB-TE. The authors do this in order to evaluate if there are any fundamental differences between the control or data plane of the two technologies, which would give either of them a significant cost/complexity advantage over the other. To further help providers select the best packet transport technology, the authors identify key next generation packet transport requirements, and use these as a benchmark to evaluate PBB-TE and MPLS.
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