Pseudowire protection using a standby Pseudowire

1. A method, comprising:

sending parameter data comprising a pseudowire protection configuration parameter for a standby pseudowire between a source node device and a destination node device, wherein the pseudowire protection configuration parameter specifies a protection property associated with the standby pseudowire, and wherein the protection property comprises a priority for the standby pseudowire;

receiving acknowledgement data comprising a pseudowire configuration acknowledgement indicating whether the pseudowire protection configuration parameter has been accepted by the destination node device;

establishing the standby pseudowire based, at least in part, on the acknowledgement data indicating an acceptance of the pseudowire protection configuration parameter by the destination node device; and

determining whether to preempt traffic on the standby pseudowire based, at least in part, on the priority for the standby pseudowire.

2. The method of claim 1 , further comprising performing at least one of the sending, the receiving, the establishing, or the determining by a management device communicatively coupled with the source node device.

3. The method of claim 1 , further comprising performing at least one of the sending, the receiving, the establishing, or the determining by the source node device.

4. The method of claim 1 , further comprising configuring the standby pseudowire to provide protection for a primary pseudowire.

5. The method of claim 4 , further comprising initiating a preemption of the traffic in response to receiving a switchover request in response to detection of a failure of the primary pseudowire to transfer network traffic of the primary pseudowire.

6. The method of claim 4 , further comprising initiating a preemption of the traffic on the standby pseudowire in response to a determination that an amount of network traffic on the primary pseudowire exceeds an available bandwidth on the standby pseudowire.

7. The method of claim 6 , further comprising, in response to a determination that the priority for the standby pseudowire is lower than a priority for the primary pseudowire, switching the network traffic from the primary pseudowire to the standby pseudowire.

8. The method of claim 5 , further comprising receiving the switchover request from at least one of the source node device or the destination node device.

9. The method of claim 1 , wherein the sending the parameter data comprises sending the parameter data specifying, as the protection property, at least one of a domain type or a protection type.

10. The method of claim 1 , wherein the sending the parameter data comprises sending the parameter data specifying, as the protection property, a domain type, wherein the domain type indicates whether a plurality of node devices comprising the standby pseudowire are coupled to a single carrier network or multiple carrier networks.

11. The method of claim 1 , wherein the sending the parameter data comprises sending the parameter data specifying, as the protection property, a protection that indicates at least one of:

a 1+1 protection wherein same traffic is sent over two pseudowires;

a 1:1 protection wherein one standby pseudowire is used to protect another pseudowire;

a 1:N protection wherein one standby pseudowire is used to protect N other pseudowires; or

an M:N protection wherein M standby pseudowires are used to protect N other pseudowires, where M and N are respective integers greater than or equal to one.

12. The method of claim 1 , further comprising establishing the standby pseudowire using a label distribution protocol.

13. A system for providing protection to network traffic, comprising:

a management device configured to at least

communicatively couple to a source node device via a network device,

initiate sending of configuration data comprising a pseudowire protection configuration parameter associated with a standby pseudowire between the source node device and a destination node device, wherein the pseudowire protection configuration parameter indicates a protection property associated with the standby pseudowire, and wherein the protection property comprises a priority for the standby pseudowire;

receive acknowledgment data comprising a pseudowire configuration acknowledgement indicating whether the pseudowire protection configuration parameter has been accepted by the destination node device;

configure the standby pseudowire based at least in part on the acknowledgement data indicating acceptance of the pseudowire protection configuration parameter by the destination node device; and

determine whether to preempt traffic on the standby pseudowire based, at least in part, on the priority for the standby pseudowire.

14. The system of claim 13 , wherein the standby pseudowire is configured to provide protection for a primary pseudowire.

15. The system of claim 14 , wherein the management device is further configured to initiate preemption of the traffic on the standby pseudowire in response to receipt of a switchover request generated responsive to a failure of the primary pseudowire to transfer network traffic carried by the primary pseudowire.

16. The system of claim 15 , wherein the switchover request is received from at least one of the source node device or the destination node device.

17. The system of claim 14 , wherein the management device is further configured to initiate preemption of the traffic on the standby pseudowire in response to a determination that an amount of network traffic carried by the primary pseudowire exceeds an available bandwidth on the standby pseudowire.

18. The system of claim 14 , wherein the management device is further configured to switch the network traffic from the primary pseudowire to the standby pseudowire in response to a determination that the priority for the standby pseudowire is less than a priority for the primary pseudowire.

19. The system of claim 13 , wherein the protection property further comprises at least one of a domain type or a protection type.

20. The system of claim 13 , wherein the management device is further configured to configure the standby pseudowire using a label distribution protocol.

21. A computer-readable storage device having stored thereon computer-executable instructions that, in response to execution, cause a system comprising a processor to perform operations, comprising:

sending configuration data comprising a pseudowire protection configuration parameter for configuring a standby pseudowire between a source node device and a destination node device, wherein the pseudowire protection configuration parameter indicates a protection property associated with the standby pseudowire, and wherein the protection property comprises a priority for the standby pseudowire;

receiving acknowledgement data comprising a pseudowire configuration acknowledgement indicating whether the pseudowire protection configuration parameter has been accepted by the destination node device;

establishing the standby pseudowire based at least in part on the acknowledgement data indicating an acceptance of the pseudowire protection configuration parameter by the destination node device; and

determining whether to preempt traffic on the standby pseudowire based, at least in part, on the priority for the standby pseudowire.

22. The computer-readable storage device of claim 21 , wherein the operations further comprise performing at least one of the sending, the receiving, the establishing, or the determining by a management device communicatively coupled with the source node device.

23. The computer-readable storage device of claim 21 , wherein the operations further comprise performing at least one of the sending, the receiving, the establishing, or the determining by the source node device.

24. The computer-readable storage device of claim 21 , wherein the operations further comprise configuring the standby pseudowire to provide protection for a primary pseudowire.

25. The computer-readable storage device of claim 24 , wherein the operations further comprise initiating a preemption of the traffic in response to receiving a switchover request generated in response to a failure of the primary pseudowire to transfer network traffic of the primary pseudowire.

26. The computer-readable storage device of claim 25 , wherein the operations further comprise receiving the switchover request from at least one of the source node device or the destination node device.

27. The computer-readable storage device of claim 24 , wherein the operations further comprise initiating a preemption of the traffic on the standby pseudowire in response to a determination that an amount of network traffic on the primary pseudowire exceeds an available bandwidth on the standby pseudowire.

28. The computer-readable storage device of claim 24 , wherein the operations further comprise switching the network traffic from the primary pseudowire to the standby pseudowire in response to a determination that the standby pseudowire has a lower priority than a priority for the primary pseudowire.

29. The computer-readable storage device of claim 21 , wherein the sending comprises sending the confirmation data comprising the pseudowire protection configuration parameter indicating, as the protection property, at least one of a domain type or a protection type.