Vendors and the Metro Ethernet Forum (MEF) are working to correct an Ethernet omission that may or may not have much relevance to customer interest or service success—the inter-provider NNI. Ethernet standards have not addressed this issue fully because there has been relatively little interest in using Ethernet for long-haul connections, but some believe that the BT interest in PBT for leased-line and frame relay replacement indicate that Ethernet could have a future at a national/international level. This may also spark more interest in pan-provider service management work being done by the IPsphere Forum.
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