Synthetic bridging for networks

• US 7,730,200 B2
• Filed: 07/31/2007
• Issued: 06/01/2010
• Est. Priority Date: 03/14/2007
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Beers, Ted W, Gorzynski, Mark E, Wickes, William C, Grasley, Scott, Thielman, Jeffrey L, Gargan, Garrett Daniel, Brewster, Jon A
• Primary Examiner(s): Osman; Ramy M
• Application Number:
  US11/911,496
• Publication Number:
  US 20090300147A1
• Time in Patent Office: 1,036 Days
• Field of Search: 709/220, 709223-225, 709/229, 709/231, 709/232, 709/249
• US Class Current: 709/231
• CPC Class Codes: H04L 12/1827 Network arrangements for conference optimisation or adaptation
• CPC Class Codes: H04L 12/1836 with heterogeneous network architecture
• CPC Class Codes: H04L 63/18 using different networks or channels, e.g. using out of band channels cryptographic mechanisms or cryptographic arrangements for key distribution involving distinctive intermediate devices or communication paths H04L9/0827; cryptographic mechanisms or cryptographic arrangements for authentication using a plurality of channels H04L9/3215
• CPC Class Codes: H04L 65/103 in the network
• CPC Class Codes: H04L 65/403 Arrangements for multi-party communication, e.g. for conferences data switching systems for conference H04L12/18; arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities H04M3/56; television conferencing systems H04N7/15
• CPC Class Codes: H04L 65/765 intermediate
• CPC Class Codes: H04M 3/56 Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities video conference systems H04N7/15
• CPC Class Codes: H04N 19/40 using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream
• CPC Class Codes: H04N 7/148 Interfacing a video terminal to a particular transmission medium, e.g. ISDN
• CPC Class Codes: H04N 7/15 Conference systems

Abstract

A method of creating a synthetic bridge (100) has select data (406) logically extracted from an application layer of a first network (12A) which contains one or more first data streams to be transported to a second network (12B). Select data (406) is logically extracted from an application layer of the second network (12B). Select data (406) is logically extracted from an application layer of the second network (12B) which contains one or more second data streams to be transported to the first network (12A). The two or more first and second data streams are transported over separate sets of non-network media link interfaces (130-133) that only allow for limited information encoding and inherently prevent any network protocol information from being passed with the two or more first and second data streams until after the two or more first and second data streams are in the control of the opposite network from which they were transported.

Claims

1. A method of creating a synthetic bridge, comprising the steps of:

logically extracting first data from an application layer of one or more first data streams of a first network, said first data to be transported to a second network;

logically extracting second data from an application layer of one or more second data streams of the second network, said second data to be transported to the first network; and

transporting said first and second data of the two or more first and second data streams over separate sets of non-network media link interfaces that only allow for limited information encoding and inherently prevent any network protocol information from being added with said first and second data of the two or more first and second data streams until after the two or more first and second data streams are in the control of the opposite network from which they were transported.

2. The method of claim 1, further comprising the step of controlling the configuration of the synthetic bridge from a separate network.

3. The method of claim 2, wherein the step of controlling the configuration of the synthetic bridge is done using email.

4. The method of claim 1, further comprising the step of translating at least one of the one or more first or second data streams from a first video format to a second video format.

5. The method of claim 1, wherein the non-network media link interfaces are not network related so as to inherently prevent any network protocol information from being transferred between opposite networks.

6. The method of claim 1, further comprising the steps of:

transporting the two or more first and second data streams over a collaboration transport network having a smallest data link of 45 Mbps;

logically extracting third data from an application layer of one or more first data streams of the collaboration transport network to be transported to the second network; and

logically extracting fourth data from an application layer of one or more second data streams of the collaboration transport network to be transported to the first network.

7. The method of claim 6 wherein the total one-way latency of transporting the one or more first and second data streams between the first and second networks is less than one-quarter of a second.

8. The method of claim 6 further comprising the steps of:

encapsulating at least one of the one or more first and second data streams using a collaboration description language before transport on the collaboration transport network; and

processing the at least one of the one or more first and second data streams with the collaboration description language encapsulating the at least one of the one or more first and second data streams before passing the processed at least one or more first and second data streams to the first or second networks.

9. The method of claim 6 further comprising the step of providing directory services for the collaboration transport network to only allow for unidirectional control of the collaboration transport network from the first and second networks.

10. A synthetic bridge, comprising:

a set of non-network media link interfaces;

a content node connected to the set of non-network media link interfaces, the content node including,

circuitry to extract first data without network protocol information from a set of first data streams of an application layer of a first network, said first data to be transported to a second network, and to receive a set of limited encoded second data streams to be incorporated into the application layer of the first network, and

circuitry to provide limited encoding of said first data of the set of first data streams onto the set of non-network media link interfaces; and

a collaboration node connected to the set of non-network media link interfaces, the collaboration node including,

circuitry to extract second data without network protocol information from a set of second data streams of an application layer of the second network, said second data to be transported to the first network, and to receive a set of limited encoded first data streams to be incorporated into the application layer of the second network, and

circuitry to provide limited encoding of said second data of the set of second data streams onto the set of non-network media link interfaces.

11. The synthetic bridge of claim 10, further comprising circuitry to control the configuration of the synthetic bridge from a separate network.

12. The synthetic bridge of claim 11, wherein the control of the configuration of the synthetic bridge is done using email.

13. The synthetic bridge of claim 10, further comprising circuitry to translate at least one data stream in the set of first or second data streams from a first video format to a second video format.

14. The synthetic bridge of claim 10, wherein the number of non-network media link interfaces within the set of non-network media link interfaces is asymmetrical between the content node and the collaboration node.

15. The synthetic bridge of claim 10, further comprising:

wherein the second network is a collaboration transport network to transport the sets of first and second data streams between the first network and a third network;

a second content node connected to a second set of non-network media link interfaces, the content node including,

circuitry to extract third data without network protocol information from the set of first data streams from an application layer of the second network, said third data to be transported to the third network, and to receive a set of limited encoded second data streams to be incorporated into the application layer of the second network, and

circuitry to limited encoding of said third data of the set of first data streams onto the second set of non-network media link interfaces; and

a second collaboration node connected to the second set of non-network media link interfaces, the collaboration node including,

circuitry to extract fourth data without network protocol information from the set of second data streams from an application layer of the third network, said fourth data to be transported to the second network, and to receive a set of limited encoded first data streams to be incorporated into the application layer of the third network, and

circuitry to provide limited encoding of said fourth data of the set of second data streams onto the second set of non-network media link interfaces.

16. The synthetic bridge of claim 15 wherein the total one-way latency of transporting the sets of first and second data streams between the first and third networks is less than one-quarter of a second.

17. The synthetic bridge of claim 15, further comprising:

circuitry to encapsulate at least one of the data streams in the sets of first and second data streams using a collaboration description language before transport on the collaboration transport network; and

circuitry to process the at least one of the data streams in the sets of first and second data streams with the collaboration description language encapsulating the at least one data stream of the sets of first and second data streams before passing the processed at least one data stream to the first or second networks.

18. The synthetic bridge of claim 15, further comprising means for providing directory services for the collaboration transport network to only allow for unidirectional control of the collaboration transport network from the first and second networks.

19. The synthetic bridge of claim 15 wherein the collaboration transport network has a smallest data link of 45 Mbps.

20. A synthetic bridge, comprising:

a set of non-network media link interfaces that are not capable of transporting network protocol;

a content node having,

means for interfacing to a first network including an application layer,

means for extracting at least one first data stream from the first network from the application layer of the first network and for transferring a limited encoded second data stream to the application layer of the first network,

means for limited encoding the extracted at least one first data stream onto the set of non-network media link interfaces, and

means for receiving the limited encoded second data stream from the set of non-network media link interfaces; and

a collaboration node having,

means for interfacing to a second network including an application layer,

means for extracting at least one second data stream from the second network from the application layer of the second network and for transferring a limited encoded first data stream to the application layer of the second network,

means for limited encoding the extracted at least one second data stream onto the set of non-network media link interfaces,

means for receiving the limited encoded first data stream from the set of non-network media link interfaces.