Abstract: A method is described for optimizing the transport of Ethernet frames in a telecommunication network over different connections having different delays, in order to avoid overflow of the receiving queues. The method includes measuring of the delays of the connections, collecting the values of the delays, defining a range of valid values, comparing the values of the delays to the defined range and carrying the Ethernet frames over the connections having the values of the delays within the defined range.

Abstract: Method for recovering a clock signal from an input data signal in a telecommunications system, that provides for comparing the input data signal with a recovered clock signal in order to control said recovered clock signal generation and provides for generating a plurality of delayed clock signals, obtained by multi-delaying at least a reference signal, said delayed clock signals being phase-shifted with respect to each other. According to the invention, said delayed clock signals show a phase shift with respect to each other, that is nominally constant in time, and, moreover, it is provided for selecting the recovered clock signal among said delayed clock signals.

Abstract: Disclosed is a method for providing flow control of Ethernet frames transported over a transport SDH/SONET network. The method is characterized by comprising the following steps: at the network elements that host the sending and receiving points, providing termination blocks for storing queues of Ethernet frames, when the filling of termination block queue at the receiving node reaches a danger threshold, generating a Link Back-pressure Request and forwarding it to termination block at the transmitting node along the opposite direction; upon receipt of this request at the termination block suspending the transmission of other already stored Ethernet frames by until the disappearance of the Link Back-pressure Request.

Abstract: Method for recovering a clock signal from an input data signal in a telecommunications system, that provides for comparing the input data signal with a recovered clock signal in order to control said recovered clock signal generation and provides for generating a plurality of delayed clock signals, obtained by multi-delaying at least a reference signal, said delayed clock signals being phase-shifted with respect to each other. According to the invention, said delayed clock signals show a phase shift with respect to each other, that is nominally constant in time, and, moreover, it is provided for selecting the recovered clock signal among said delayed clock signals.