Hybrid data transport scheme over optical networks

• US 7,006,525 B1
• Filed: 03/27/2000
• Issued: 02/28/2006
• Est. Priority Date: 02/23/2000
• Status: Expired due to Term

• Current Assignee: Tamiras Per Pte Ltd LLC (Intellectual Ventures LLC)
• Original Assignee: Cypress Semiconductor Corporation (Infineon Technologies AG)
• Inventors: Jha, Pankaj K.
• Primary Examiner(s): Ngo, Ricky
• Assistant Examiner(s): Juntima, Nittaya
• Application Number:
  US09/535,890
• Time in Patent Office: 2,164 Days
• Field of Search: 370/404, 370/421, 370/442, 370/452, 370/470, 370/471, 370/473, 370/474, 370/475, 370/408, 370/465, 370/466, 370/537, 370/538, 370/539, 370/522, 370/907, 370/401, 370/476
• US Class Current: 370/466
• CPC Class Codes: H04J 3/1617 carrying packets or ATM cells
• CPC Class Codes: Y10S 370/907 Synchronous optical network, SONET

Abstract

A frame configured to (i) be transmitted on a network and (ii) store data packets in a plurality of channels. One or more of the plurality of channels may be configured to store one or more fragments of the data packets.

Claims

1. An apparatus comprising:

an interface connectable to a network, said interface configured to generate a frame transmitted on said network, said frame configured to store one or more data packets in a plurality of channels, wherein (i) a first of said plurality of channels is configured to store at least one of two or more fragments of said one or more data packets (ii) said at least one fragment comprises one or more offset locators configured to point to a next fragment of said two or more fragments, (iii) said one or more offset locators is located at the end of said at least one fragment.

2. The apparatus according to claim 1, wherein said network comprises a fiber optic network.

3. The apparatus according to claim 1, wherein said next fragment further comprises one or more header locations configured to identify said next fragment.

4. The apparatus according to claim 1, wherein each of said fragments comprise one or more trailer locations each configured to identify either (i) an end of said one or more offset locators or (ii) an end of said one or more data packets.

5. The apparatus according to claim 1, wherein each of said plurality of channels comprises a fixed bandwidth channel.

6. The apparatus according to claim 1, wherein each of said one or more data packets is selected from a group consisting of Internet Protocol packets, Packet-Over-SONET packets, Point-to-Point Protocol packets, Asynchronous Transfer Mode cell packets, G.702-based Plesiochronous Digital Hierarchy (T1/T3) packets, Spatial Reuse Protocol packets, and Frame Relay packets.

7. An apparatus comprising:

an interface connectable to a network, said interface configured to generate a frame transmitted on said network, said frame configured to store one or more data packets in a plurality of channels, wherein (i) a first of said plurality of channels is configured to store at least one of two or more fragments of said one or more data packets and (ii) a second of said channels is configured to store only complete packets of said one or more data packets from a fixed bandwidth source.

8. The apparatus according to claim 7, wherein said frame comprises one or more offset locators configured to point to a next fragment of said two or more fragments.

9. An apparatus comprising:

an interface connectable to a network, said interface configured to generate a frame transmitted on said network, said frame configured to store one or more data packets in a plurality of channels, wherein (i) a first of said plurality of channels is configured to store at least one of two or more fragments of said one or more data packets (ii) a payload portion of each of said one or more data packets is configured to be reloaded with a partial data load, and (iii) said at least one fragment comprises one or more offset locators configured to point to a next fragment of said two or more fragments, and wherein said one or more offset locators is located at the end of said at least one fragment.

10. The apparatus according to claim 9, wherein after fragmentation, said first data packet comprises an offset locator configured to point to a next of said one or more data packets storing a next fragment of said two or more fragments.

11. The apparatus according to claim 10, wherein said next data packet comprises a header location configured to identify said next fragment.

12. The apparatus according to claim 11, wherein each of said first and said next data packets further comprise one or more trailer locations configured to identify either (i) an end of said offset locator or (ii) an end of said first data packet.

13. An apparatus comprising:

one or more nodes coupled to a network, each of said nodes configured to receive and transmit one or more of a plurality of frames each configured to store one or more data packets in a plurality of channels, wherein (i) two or more of said channels are configured to store two or more fragments from a first of said one or more data packets, respectively, (ii) said two or more channels are separated by at least one of said channels and (iii) wherein after fragmentation, said first data packet comprises an offset locator configured to point to a next of said one or more data packets storing a next fragment of said two or more fragments.

14. The apparatus according to claim 13, wherein data from each of a number of sources is dynamically allocated among said plurality of channels in response to bandwidth demands.

15. The apparatus according to claim 13, wherein each of said plurality of channels comprise fixed bandwidth channels.

16. The apparatus according to claim 13, wherein a payload portion of each of said one or more data packets is configured to be reloaded with a partial data load.

17. A method for transferring data, comprising the steps of:

(A) transmitting one or more of a plurality of frames;

(B) configuring each of said frames to store one or more data packets in a plurality of channels;

(C) configuring a first and a second of said channels to store one or more fragments of said one or more data packets, a first of said fragments in said first channel being linked by an offset pointer to a second of said fragments in said second channel; and

(D) encapsulating each of said one or more fragments with a header and a trailer, and including the offset pointer at the end of said first of said fragments.

18. The method according to claim 17, wherein said offset pointer is transferred after said first fragment in said first channel.

19. A method for transferring data, comprising the steps of:

(A) transmitting one or more of a plurality of frames;

(B) configuring each of said frames to store one or more data packets in a plurality of channels; and

(C) configuring a first and a second of said channels to store one or more fragments of said one or more data packets, a first of said fragments in said first channel being linked by an offset pointer to a second of said fragments in said second channel, (i) said first channel and said second channel are separated by at least one of said plurality of channels, and (ii) the offset pointer is located at the end of said first of said fragments.

20. The method according to claim 19, further comprising the step of:

encapsulating each of said one or more fragments with a header and a trailer.