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1. WO2004062315 - SYSTEME, PROCEDE ET DISPOSITIF PERMETTANT DE TRANSMETTRE UN MESSAGE D'ETAT D'INTERVALLE TEMPOREL ENTRE DES NOEUDS SONET

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[ EN ]

CLAIMS
What is claimed is:
1. A system comprising:
a switch fabric comprising a plurality of ports;
a plurality of SONET framers, each SONET framer being coupled to a port of the switch fabric; and
a circuit controller coupled to at least on of the SONET framers, the circuit controller comprising:
logic to initiate an allocation of one or more time slots in SONET links coupled between a source node and a destination node in a SONET network to provision a SONET circuit between the source and destination nodes; and
logic to initiate transmission of a time slot status message to one or more nodes in the SONET network which are not in the provisioned SONET circuit, the time slot status message identifying at least one allocated time slot.

2. The system of claim 1, wherein each SONET framer is coupled to a port of the switch fabric by an interconnection formed according to a System Packet Interface.

3. A method comprising:
initiating an allocation of one or more time slots in SONET links coupled between a source node and a destination node in a SONET network to provision a SONET circuit between the source and destination nodes; and
initiating transmission of a time slot status message to one or more nodes in the SONET network which are not in the provisioned SONET circuit, the time slot status message identifying at least one allocated time slot.

4. The method of claim 3, wherein the time slot status message comprises information identifying one or more nodes in the SONET network that are to receive the time slot status message.

5. The method of claim 3, the method further comprising:
initiating an allocation of a plurality of time slots in the one or more SONET links; and initiating transmission of a time slot status message to the one or more nodes in the SONET network which are not in the provisioned SONET circuit for each of the allocated time slots.

6. The method of claim 3, the method further comprising initiating the allocation of the one or more time slots based upon protocols defined in a User Network Interface.

7. The method of claim 3, the method further comprising:
initiating a de-allocation of one or more time slots in at least one SONET link coupled between the source node and the destination node to de-provision the SONET circuit; and
initiating transmission of a second time slot status message to the one or more nodes not in the provisioned SONET circuit, the time slot status message identifying at least one de-allocated time slot.

8. A controller comprising:
logic to initiate an allocation of one or more time slots in SONET links coupled between a source node and a destination node in a SONET network to provision a SONET circuit between the source and destination nodes; and
logic to initiate transmission of a time slot status message to one or more nodes in the SONET network which are not in the provisioned SONET circuit, the time slot status message identifying at least one allocated time slot.

9. The controller of claim 8, wherein the time slot status message comprises information identifying one or more nodes in the SONET network that are to receive the time slot status message.

10. The controller of claim 8, the controller further comprising:
logic to initiate an allocation of a plurality of time slots in the one or more SONET links; and logic to initiate transmission of a time slot status message to the one or more nodes in the SONET network which are not in the provisioned SONET circuit for each of the allocated time slots.

11. The controller of claim 8, the controller further comprising logic to initiate the allocation of the one or more time slots based upon protocols defined in a User Network Interface.

12. The controller of claim 8, the controller further comprising:
logic to initiate a de-allocation of one or more time slots in at least one SONET link coupled between the source node and the destination node to de-provision the SONET circuit; and
logic to initiate transmission of a second time slot status message to the one or more nodes not in the provisioned SONET circuit, the time slot status message identifying at least one de-allocated time slot.

13. An article comprising:
a storage medium comprising machine-readable instructions stored thereon to:
initiate an allocation of one or more time slots in SONET links coupled between a source node and a destination node in a SONET network to provision a

SONET circuit between the source and destination nodes; and
initiate transmission of a time slot status message to one or more nodes in the SONET network which are not in the provisioned SONET circuit, the time slot status message identifying at least one allocated time slot.

14. The article of claim 13, wherein the time slot status message comprises information identifying one or more nodes in the SONET network that are to receive the time slot status message.

15. The article of claim 13, wherein the storage medium further comprises machine-readable instructions stored thereon to:
initiate an allocation of a plurality of time slots in the one or more SONET links; and initiate transmission of a time slot status message to the one or more nodes in the SONET network which are not in the provisioned SONET circuit for each of the allocated time slots.

16. The article of claim 13, wherein the storage medium further comprises machine-readable instructions stored thereon to initiate the allocation of the one or more time slots based upon protocols defined in a User Network Interface.

17. The article of claim 13, wherein the storage medium further comprises machine-readable instructions stored thereon to:
initiate a de-allocation of one or more time slots in at least one SONET link coupled between the source node and the destination node to de-provision the SONET circuit; and
initiate transmission of a second time slot status message to the one or more nodes not in the provisioned SONET circuit, the time slot status message identifying at least one de-allocated time slot.

18. A method comprising:
receiving a first time slot status message at a first node in a SONET ring, the first time slot status message identifying a status of at least one time slot in a SONET link coupled between nodes in a SONET network;
updating a status associated with the time slot in a database associated with first node in response to the first time slot status message; and
forwarding a second time slot status message to a second node in the SONET ring, the second time slot status message being based, at least in part, upon the first time slot status message.

19. The method of claim 1, wherein the time slot status message comprises information identifying one or more nodes in the SONET network that are to receive the time slot status message.

20. The method of claim 1, wherein receiving the first time slot status message comprises receiving the first time slot status message in a data frame encapsulated in a header portion of one or more SONET frames.

21. The method of claim 3, wherein forwarding the second time slot status message comprises forwarding the second time slot status message in a data frame encapsulated in a header portion of one or more SONET frames.

22. The method of claim 1, wherein receiving the first time slot status message comprises receiving the first time slot status message in a data frame from an Ethernet data link.

23. The method of claim 5, wherein forwarding the second time slot status message comprises forwarding the second time slot status message in a data frame to an Ethernet data link.

24. The method of claim 5, the method further comprising receiving the first time slot status according to a Link Management Protocol.

25. The method of claim 5, the method further comprising receiving the first time slot status message according to an RSNP-TE protocol.

26. A controller comprising:
logic to receive a first time slot status message at a first node in a SONET ring, the first time slot status message identifying a status of at least one time slot in a SONET link coupled between nodes in a SONET network;
logic to update a status associated with the time slot in a database associated with first node in response to the first time slot status message; and
logic to forward a second time slot status message to a second node in the SONET ring, the second time slot status message being based, at least in part, upon the first time slot status message.

27. The controller of claim 26, wherein the time slot status message comprises information identifying one or more nodes in the SONET network that are to receive the time slot status message.

28. The controller of claim 26, the controller further comprising logic to receive the first time slot status message comprises in a data frame encapsulated in a header portion of one or more SONET frames.

29. The controller of claim 28, the controller further comprising logic to forward the second time slot status message in a data frame encapsulated in a header portion of one or more SONET frames.

30. The controller of claim 26, the controller further comprising logic to receive the first time slot status message in a data frame from an Ethernet data link.

31. The controller of claim 30, the controller further comprising logic to forward the second time slot status message in a data frame to an Ethernet data link.

32. The controller of claim 30, the controller further comprising logic to receive the first time slot status according to a Link Management Protocol.

33. The controller of claim 30, the controller further comprising logic to receive the first time slot status message according to an RSNP-TE protocol.