1. IP over ATM versus IP over SONET
... -to-point transport of data with little overhead • standards-based multiplexing of SONET/SDH datastreams • transport independent from the services and applications that it supports • self-healing ring structure to reroute traffic around faults within a particular link • widely deployed transmission infrastructure within carrier networks • TDM grooming and aggregation from the DS0 level Figure 1: A SONET/SDH Pipe ... to do. Theoretically, it may not be impossible to have configuration-less framerelay over SONET with datalink layer QoS support. But practically it is a hard try. C...
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