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US 2006/0067314 A1Published application
Overhead processing and generation techniques
OwnerMichael Ho, Miriam Qunell +2inventors
InventorsMichael Ho, Miriam Qunell, Jeff Fedders, Jean-Michel Caia
Life of this patent
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Abstract
Techniques to allocate overhead processing and overhead generation among at least data and overhead processors. The data processor and overhead processor may be provided in separate integrated circuits. The data processor and overhead processor may be provided in separate line cards. Multiple data processors may share use of one or more overhead processors. Payload portions of standardized frames may be used to transfer overhead between the data and overhead processors.
Claims38
A method comprising:
- receiving a payload portion at a data processor;
- receiving at the data processor an encapsulation from an overhead processor, wherein the encapsulation comprises an overhead section and payload section and wherein the payload section includes a first overhead portion;
- forming a second overhead portion at the data processor;
- and
- forming an egress unit from a combination of the first and second overhead portions and the payload portion.
2 more elements
A method comprising:
- receiving at a data processor an ingress unit including a payload portion and an overhead portion;
- transferring a portion of the overhead portion as a first overhead portion in an encapsulation to an overhead processor, wherein the encapsulation comprises an overhead section and payload section and wherein the payload section includes the first overhead portion;
- and
- processing the first overhead portion at the overhead processor.
1 more element
An apparatus comprising:
- a data processor to receive a payload portion;
- an overhead processor to transfer a first overhead portion to the data processor in an encapsulation, wherein the encapsulation comprises an overhead section and payload section and wherein the payload section includes the first overhead portion, wherein the data processor is to:
- provide a second overhead portion, and
- form an egress unit from a combination of the first and second overhead portions and the payload portion;
- and
- a link to provide intercommunication between the data processor and the overhead processor and to at least transfer the encapsulation from the overhead processor to the data processor.
3 more elements
An apparatus comprising:
- an overhead processor;
- a data processor to receive an ingress unit including a payload portion and an overhead portion and to transfer a first portion of the overhead portion in an encapsulation to the overhead processor, wherein the encapsulation comprises an overhead section and payload section and wherein the payload section transfers the first overhead portion;
- and
- a link to provide intercommunication between the data processor and the overhead processor and to at least transfer the encapsulation from the data processor to the overhead processor.
1 more element
A system comprising:
- a physical layer interface capable to transfer and receive packets and frames with a network;
- a framer comprising:
- an overhead processor,
- a data processor to receive an ingress unit including a payload portion and an overhead portion and to transfer a first portion of the overhead portion in an encapsulation to the overhead processor, wherein the encapsulation comprises an overhead section and payload section and wherein the payload section transfers the first overhead portion and wherein the overhead processor processes the first overhead portion, and
- a link to provide intercommunication between the data processor and the overhead processor and to at least transfer the encapsulation from the data processor to the overhead processor;
- a network processor capable to perform frame and packet routing and protocol processing;
- and
- an interface to at least provide intercommunication between the framer and the network processor.
5 more elements
Dependencies are inferred from the claim text.