Network Equipment Technologies, Inc.

Chi-Yin Wong

Sergey Svoysky

A system for managing circuit emulation service over an Asynchronous Transfer Mode (ATM) network is provided. The system includes control logic configured to receive channelized circuit data from a client, the channelized circuit data being transmitted at an arbitrary rate. The channelized circuit data is formatted into one or more ATM cells. Each ATM cell has a payload. The payload has a number of octets and corresponding validity fields. Each validity field is used to indicate whether the associated octet contains valid data. The one or more ATM cells are transmitted across the ATM network. By examining the validity fields, the transmission of the one or more ATM cells effectively results in transmission of the channelized circuit data at the arbitrary rate over the ATM network. The arbitrary rate is not a multiple of a fundamental rate.

Method and system for providing transport of channelized circuits of arbitrary bit rate through asynchronous transfer mode (ATM) circuit emulation services (CES)

Techniques for adapting data rates from a first to a second system in a telecommunication system are provided. The techniques on used on data communications in the ingress or egress direction. The first system transfers data at a first data rate that is faster than a data rate of a second system. The techniques are used to adapt data received at the first data rate for sending to the second system at the second data rate.

Module interface carrier data rate adaptation techniques

A method for converting data for a interface module and a network data plane is provided. The data is converted using an interface in a telecommunications system. The method includes receiving data in a plurality of data formats through the interface module. The plurality of data formats include a variable format of a variable-length and a fixed format of a fixed-length. The data in the plurality of data formats is then converted into a predetermined network data plane format and sent in the network data plane format to the network data plane. The method further includes receiving data in the predetermined network data plane format from the network data plane. Then, a format in the plurality of data formats to convert the data received from the network data plane to is determined and the data in the network data plane data format is converted to the determined data format. The data in the determined data format is sent to the interface module.

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Los Gatos, CA, United States of America

Chi-Yin Wong