SoNET
... 51.84 Mbps. SoNET is also optimized so as to limit overhead. Overhead in SoNET networks is less than 5%. This is much less than the typical 15-20% found in most networks. STS (Synchronous Transport Signal -1) is the standard channel. All SoNET speeds are gauged by this rate. For example, STS-3 lines are 155.52 Mbps (51.84 x 3). The fastest SoNET lines are approaching STS-400 speeds of 20.776Gbps. BTW, ATM operates at 155 Mbps since it was originally designed to run over OC-3 lines. SoNET networks are very efficient as well in that the protocol has been designed from the beginning with the assumption of a fiber-based media. SoNET is the fastest protocol/networking scheme available today. SoNET SoNET (Synchronous Optical Network) was created in the mid-1980s: O to provide interoperability for major data carriers O to provide a way to multiplex digital channels together into ever- increasing speeds O to provide a standardized approach to administer and maintain a network. It is synchronous and has a master clock which sends out data frames on a regular basis. Your responsibility is to fill them frames with data since "skeleton" frames containing no data will be regularly sent due to the master clock. If you do not fill these skeleton frames with real data, then a SoNET line is using too much overhead. These data frames are 810 bytes in length and are sent out at increments of...