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Metro Ethernet by Sam Halabi

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Establishing the Need for GMPLS

Anyone who has been in the networking industry for a while would likely raise the issue of whether GMPLS is really needed or is overkill. After all, we have managed so far to build large-scale TDM networks with all sorts of methods, and we have seen improvement in tools to facilitate the operation and management of those networks. To understand the issue of whether GMPLS is necessary, you need to look first at how TDM networks function today and then at how they could benefit from GMPLS.

The following section describes the provisioning model of today's network deployments, which are more static with centralized management. The problem with this model is that it doesn't enable carriers to provide new services that ...

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