Back to results
US 7,733,900 B2Granted
Multi-service ethernet-over-sonet silicon platform
AssigneeBroadcom Corporation
InventorJean-Marc Guy Patenaude
Life of this patent
Estimating the term…
Abstract
An integrated circuit device for use in connecting synchronous optical networks to packet networks and synchronous time division multiplexed subscriber lines and a method of operation of same is disclosed. An embodiment of the invention may include SONET/SDH compatible optical carrier framing, cross connect, and packet mapping functionality. In addition, it may support Ethernet packet network connections and DS1/E1 and DS3/E3 time division multiplexed subscriber circuits, and may include a telecom bus compatible interface for the connection of additional communications devices. An embedded microprocessor core and embedded memory may permit the present invention to support enhanced remote diagnostic, trouble reporting, traffic management, and software update capabilities.
Claims25
A single chip Ethernet to synchronous optical network interface device comprising:
- at least one optical carrier framer for performing transmit framing on a channelized input data stream producing a transmit data stream for conversion to an optical signal for transmission over an optical network link, and for performing receive framing on a receive data stream converted from an optical signal received from the optical network link, producing a channelized output data stream;
- a cross connect for multiplexing a plurality of input data channels to form the channelized input data stream, and for de-multiplexing the channelized output data stream into a plurality of output data channels;
- a packet mapper for packetizing at least one of the plurality of output data channels, producing at least one packet output stream for transmission to user equipment over a packet network, and for de-packetizing at least one packet input stream received from the user equipment over the packet network, producing at least one of the plurality of input data channels;
- a bus interface for connecting additional communications interface devices, the bus interface arranged to permit the transfer of data from at least one of the plurality of output data channels to one or more operably coupled communication interface devices located external to the single chip Ethernet to synchronous optical network interface device, and the transfer of data from the one or more operably coupled communication interface devices to at least one of the plurality of input data channels, the communication interface devices processing the data from the at least one of the plurality of output data channels for transmission using a time division multiplex communication link and processing data received from the time division multiplex communication link for transmission using the at least one of the plurality of input data channels;
- and
- at least one embedded microprocessor core that is operable to collect, analyze, and report operational statistics of the single chip Ethernet to synchronous optical network interface device to operating personnel or systems at a location remote from the single chip Ethernet to synchronous optical network interface device, using the optical network link.
3 more elements
A method of operating a single chip Ethernet to synchronous optical network interface device, the method comprising:
- receiving a first synchronous optical network compatible data stream from an optical network link;
- converting the first synchronous optical network compatible data stream to a first packet stream;
- transmitting the first packet stream to user equipment over a packet network;
- receiving a second packet stream from user equipment over the packet network;
- converting the second packet stream to a second synchronous optical network compatible data stream;
- transmitting the second synchronous optical network compatible data stream over the optical network link;
- wherein the device is operable to transfer data from the first synchronous optical network compatible data stream over a bus interface to one or more operably coupled communications interface devices located external to the single chip Ethernet to optical interface device, and to transfer data from the one or more operably coupled communication interface devices over the bus interface for transmission using the second synchronous optical network compatible data stream, the communication interface devices processing the data from the first synchronous optical network compatible data stream for transmission using a time division multiplex communication link and processing data received from the time division multiplex communication link for transmission using the first synchronous optical network compatible data stream;
- and
- wherein the device is operable to receive updates to executable program code for at least one embedded microprocessor core in the device, via a private Ethernet tunnel over the optical network, and wherein the executable program code of the least one embedded microprocessor core is operable to collect, analyze, and report operational statistics of the single chip Ethernet to synchronous optical network interface device to operating personnel or systems at a location remote from the single chip Ethernet to synchronous optical network interface device, using the optical network link.
6 more elements
A method of operating a single chip Ethernet to synchronous optical network interface device, the method comprising:
- channelizing a receive data stream from an optical network link to produce a channelized output data stream;
- de-multiplexing the channelized output data stream to produce at least one output data channel;
- packetizing the at least one output data channel to produce a packet output stream for transmission over a packet network to user equipment;
- de-packetizing a packet input stream received from user equipment using a packet network to produce at least one input data channel;
- multiplexing the at least one input data channel to produce a channelized input data stream;
- framing the channelized input data stream to produce a transmit data stream for transmission over the optical network link;
- collecting at least one statistic relating to at least one of the channelizing, de-multiplexing, packetizing, de-packetizing, multiplexing, and framing actions;
- wherein the device is operable to transfer data from the receive data stream over a bus interface to one or more operably coupled communications interface devices located external to the single chin Ethernet to synchronous optical network interface device, and to transfer data from the one or more operably coupled communication interface devices over the bus interface for transmission using the transmit data stream, the communication interface devices processing the data from the receive data stream for transmission using a time division multiplex communication link and processing data received from the time division multiplex communication link for transmission using the transmit data stream;
- and
- wherein at least one embedded microprocessor core in the device is operable to analyze the at least one statistic, adjust operation of the device responsive to the analysis, and report performance to operating personnel or systems at a location remote from the device using a data communications channel of the optical network link.
7 more elements
Dependencies are inferred from the claim text.