System and method for providing support for multiple control channels

• US 7,688,834 B2
• Filed: 06/15/2007
• Issued: 03/30/2010
• Est. Priority Date: 10/16/2006
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Bardalai, Snigdho Chandra, Unger, Stephen John
• Primary Examiner(s): Hsu; Alpus H
• Assistant Examiner(s): HASSAN, SAAD K
• Application Number:
  US11/763,930
• Publication Number:
  US 20080101413A1
• Time in Patent Office: 1,019 Days
• Field of Search: 370/389, 370/438, 370/395.52, 370/401
• US Class Current: 370/395.52
• CPC Class Codes: H04L 41/08 Configuration management of networks or network elements address allocation H04L61/50
• CPC Class Codes: H04L 41/18 Delegation of network management function, e.g. customer network management [CNM]
• CPC Class Codes: H04L 45/00 Routing or path finding of packets in data switching networks routing or path finding in wireless networks H04W40/00
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: H04Q 11/0062 Network aspects
• CPC Class Codes: H04Q 2011/0077 Labelling aspects, e.g. multiprotocol label switching [MPLS], G-MPLS, MPAS
• CPC Class Codes: H04Q 2011/0081 Fault tolerance; Redundancy; Recovery; Reconfigurability
• CPC Class Codes: H04Q 2011/0088 Signalling aspects

Abstract

A method for providing support for multiple control channels includes establishing an indirect data connection with a first network entity in an optical network. The method also includes establishing a first control channel with the first network entity. The first control channel has at least one unique source IP address. The method additionally includes transmitting a first control message to the first network entity via the first control channel. The first control message comprises a first unique source IP address.

Claims

1. A method for providing support for multiple control channels, comprising:

establishing an indirect data connection with a first network entity in an optical network using a broadcast interface;

establishing a first control channel with the first network entity using the broadcast interface, the first control channel comprising at least one unique source IP address associated with the first control channel; and

transmitting a first control message to the first network entity via the first control channel, the first control message comprising the unique source IP address associated with the first control channel;

establishing a direct data connection with a second network entity using the broadcast interface, the second network entity positioned such that the first control message passes through the second network entity before arriving at the first network entity;

establishing a second control channel with the second network entity using the broadcast interface, the second control channel comprising at least one unique source IP address associated with the second control channel, the at least one unique source IP address associated with the second control channel different than the at least one unique source IP address associated with the first control channel such that the unique source IP address distinguishes control message in different control channels received over the same broadcast interface; and

transmitting a second control message to the second network entity via the second control channel, the second control message comprising the unique source IP address associated with the second control channel.

2. The method of claim 1, wherein the first unique source IP address is in a Config message IP header of the first control message.

3. The method of claim 1, wherein establishing an indirect data connection with a first network entity in an optical network comprises establishing an indirect data connection with a first network entity in an optical network using link management protocol.

4. The method of claim 1, further comprising:

receiving a third control message from the first network entity, the third control message comprising a second unique source IP address associated with the first control channel;

receiving a link management protocol message from the first network entity; and

demultiplexing the link management protocol message using the second unique source IP address.

5. The method of claim 1, further comprising receiving an interface IFINDEX comprising a correlation between the first control channel and the unique source IP address.

6. A system for providing support for multiple control channels, comprising:

a processor operable to;

establish an indirect data connection with a first network entity in an optical network using a broadcast interface; and

establish a first control channel with the first network entity using the broadcast interface, the first control channel comprising at least one unique source IP address associated with the first control channel;

establish a direct data connection with a second network entity using the broadcast interface, the second network entity positioned such that the first control message passes through the second network entity before arriving at the first network entity; and

establish a second control channel with the second network entity using the broadcast interface, the second control channel comprising at least one unique source IP address associated with the second control channel, the at least one unique source IP address associated with the second control channel different than the at least one unique source IP address associated with the first control channel such that the unique source IP address distinguishes control message in different control channels received over the same broadcast interface; and

an interface coupled to the processor and operable to transmit a first control message to the first network entity via the first control channel and transmit a second control message to the second network entity via the second control channel, the first control message comprising the unique source IP address associated with the first control channel and the second control message comprising the unique source IP address associated with the second control channel.

7. The system of claim 6, wherein the first unique source IP address is in a Config message IP header of the first control message.

8. The system of claim 6, wherein the processor operable to establish an indirect data connection with a first network entity in an optical network comprises a processor operable to establish an indirect data connection with a first network entity in an optical network using link management protocol.

9. The system of claim 6, wherein:

the interface is further operable to;

receive a third control message from the first network entity, the third control message comprising a second unique source IP address associated with the first control channel; and

receive a link management protocol message from the first network entity; and

the processor is further operable to demultiplex the link management protocol message using the second unique source IP address.

10. The system of claim 6, wherein the interface is further operable to receive an interface IFINDEX comprising a correlation between the first control channel and the unique source IP address.

11. A computer readable medium comprising code operable, when executed by a processor, to:

establish an indirect data connection with a first network entity in an optical network using a broadcast interface;

establish a first control channel with the first network entity using the broadcast interface, the first control channel comprising at least one unique source IP address associated with the first control channel; and

transmit a first control message to the first network entity via the first control channel, the first control message comprising the unique source IP address associated with the first control channel;

establish a direct data connection with a second network entity using the broadcast interface, the second network entity positioned such that the first control message passes through the second network entity before arriving at the first network entity;

establish a second control channel with the second network entity using the broadcast interface, the second control channel comprising at least one unique source IP address associated with the second control channel, the at least one unique source IP address associated with the second control channel different than the at least one unique source IP address associated with the first control channel such that the unique source IP address distinguishes control message in different control channels received over the same broadcast interface; and

transmitting a second control message to the second network entity via the second control channel, the second control message comprising the unique source IP address associated with the second control channel.

12. The computer readable medium of claim 11, wherein the first unique source IP address is in a Config message IP header of the first control message.

13. The computer readable medium of claim 11, wherein the code operable to establish an indirect data connection with a first network entity in an optical network comprises code operable to establish an indirect data connection with a first network entity in an optical network using link management protocol.

14. The computer readable medium of claim 11, wherein the code is further operable to:

receive a third control message from the first network entity, the third control message comprising a second unique source IP address associated with the first control channel;

receive a link management protocol message from the first network entity; and

demultiplex the link management protocol message using the second unique source IP address.

15. The computer readable medium of claim 11, wherein the code is further operable to receive an interface IFINDEX comprising a correlation between the first control channel and the unique source IP address.

16. A system for providing support for multiple control channels, comprising:

means for establishing an indirect data connection with a first network entity in an optical network using a broadcast interface;

means for establishing a first control channel with the first network entity using the broadcast interface, the first control channel comprising at least one unique source IP address associated with the first control channel;

means for transmitting a first control message to the first network entity via the first control channel, the first control message comprising a first unique source IP address associated with the first control channel;

means for establishing a direct data connection with a second network entity using the broadcast interface, the second network entity positioned such that the first control message passes through the second network entity before arriving at the first network entity;

means for establishing a second control channel with the second network entity using the broadcast interface, the second control channel comprising at least one unique source IP address associated with the second control channel, the at least one unique source IP address associated with the second control channel different than the at least one unique source IP address associated with the first control channel such that the unique source IP address distinguishes control message in different control channels received over the same broadcast interface; and

means for transmitting a second control message to the second network entity via the second control channel, the second control message comprising the unique source IP address associated with the second control channel.