No. of Recommendations: 1
I don't know much about Sorrento's product but ONI mainly sells DWDM transport gear for the Metro market. Riverstone sells IP routers, meaning that switching occurs at layer 3, rather than at a lower level such as the physical layer. In a network, these products work together. Sort of a basic answer (sorry for lack of detail) but hopefully it will be a start to what you are looking for.

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