Multi-rate, multi-protocol, multi-port line interface for a multiservice switching platform
First Claim
1. An apparatus comprising:
- a line card with a first section, wherein the first section comprises;
a section and line termination circuit configured to perform section and line termination, and framing and overhead processing for a first protocol signal;
an integrated circuit chip configured to encapsulate and map an Ethernet signal into the first protocol signal;
switches configured to;
route the Ethernet signal to the integrated circuit chip;
route the first protocol signal to the section and line termination circuit;
route second protocol signals to the section and line termination circuit;
a pluggable interface;
a first daughter card configured to plug into the pluggable interface comprising;
a multiport optics module comprising a plurality of ports and configured to receive either the Ethernet signal or second protocol signals;
a configurable clock and data recovery module configured to;
recover the Ethernet signal from the multiport optics module and pass the Ethernet signal to the switches when the configurable clock and data recovery module is configured for Ethernet signals; and
receive the second protocol signals of various bandwidths when the configurable clock and data recovery module is configured for second protocol signals and deliver the second protocol signals at a highest available second protocol bandwidth to the switches.
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Accused Products
Abstract
Methods and apparatus for enabling a line card to support multiple ports, multiple rates, and multiple protocols within an optical network system are disclosed. According to one embodiment, a line card that is suitable for incorporation into one of a multi-slot broadband digital cross-connect system or a multiservice provisioning platform includes a first port and a plurality of devices. The first port is arranged to be provisioned to accept an input signal which may be one of a signal of a first protocol and a signal of a second protocol. The plurality of devices being arranged to process the input signal to create an output signal which has a SONET payload. In one embodiment, the signal of the first protocol is an OC-n signal and the signal of the second protocol is a Gigabit Ethernet signal.
36 Citations
19 Claims
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1. An apparatus comprising:
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a line card with a first section, wherein the first section comprises; a section and line termination circuit configured to perform section and line termination, and framing and overhead processing for a first protocol signal; an integrated circuit chip configured to encapsulate and map an Ethernet signal into the first protocol signal; switches configured to; route the Ethernet signal to the integrated circuit chip; route the first protocol signal to the section and line termination circuit; route second protocol signals to the section and line termination circuit; a pluggable interface; a first daughter card configured to plug into the pluggable interface comprising; a multiport optics module comprising a plurality of ports and configured to receive either the Ethernet signal or second protocol signals; a configurable clock and data recovery module configured to; recover the Ethernet signal from the multiport optics module and pass the Ethernet signal to the switches when the configurable clock and data recovery module is configured for Ethernet signals; and receive the second protocol signals of various bandwidths when the configurable clock and data recovery module is configured for second protocol signals and deliver the second protocol signals at a highest available second protocol bandwidth to the switches. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus comprising:
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a line card with a first section, wherein the first section comprises; a section and line termination circuit configured to; receive a first protocol signal; determine a format corresponding to a format of an original signal previously mapped into the first protocol signal; demap the first protocol signal to produce a demapped first protocol signal; an integrated circuit chip configured to convert the demapped first protocol signal to an Ethernet signal when it is determined that the format of the original signal is an Ethernet signal; switches configured to; route the demapped first protocol signal to the integrated circuit chip when it is determined that the format original signal is an Ethernet signal; route the Ethernet signal from the integrated circuit chip; route the demapped first protocol signal from the section and line termination circuit when it is determined that the format of the original signal corresponds to a second protocol signal; a pluggable interface; a first daughter card configured to plug into the pluggable interface comprising; a multiport optics module comprising a plurality of ports and configured to transmit either the Ethernet signal or the second protocol signal; a configurable clock and data recovery module configured to; forward the Ethernet signal to the multiport optics module when the configurable clock and data recovery module is configured for Ethernet signals; and receive the second protocol signal when the configurable clock and data recovery module is configured for second protocol signals. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification