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- W2091192011 abstract "Optical control planes came to the forefront during the Internet boom of the late 1990s as the network operations solution of choice for emerging mesh architectures. However, in spite of the numerous advantages, their deployments in service provider networks have been below expectations. While the telecom downturn of the last few years is often blamed, we also posit that control planes lost some of their luster because the applications they were primarily marketed for — rapid provisioning for bandwidth-on-demand services and mesh restoration — failed to get the requisite traction in the marketplace. In this paper, we propose that the changed landscape notwithstanding, optical control planes still fulfill a critical role in the service provider network. We argue that an underlying control plane foundation, with its routing and signaling infrastructure, gives tremendous flexibility to the operator to build new value-added services that can significantly improve network efficiency. Consequently, once deployed, these novel services can provide alternate avenues for revenue and capital expenditure (CapEx) savings in the long term. To that end, we present two applications — link defragmentation for legacy traffic and Ethernet mesh restoration — that leverage virtual concatenation in next-generation synchronous optical network (SONET) standards. We highlight our implementation experiences and show that the underlying control plane infrastructure is key to a low overhead deployment. We quantify the savings and conclude that in the current environment, these new customizable value-added services provide a prudent strategy for increasing service provider traction, especially with respect to long-term CapEx savings." @default.
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- W2091192011 date "2006-08-04" @default.
- W2091192011 modified "2023-10-16" @default.
- W2091192011 title "Beyond rapid provisioning: Driving value-added services on control plane foundations" @default.
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- W2091192011 doi "https://doi.org/10.1002/bltj.20170" @default.
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