System and method for synchronizing counters on an asynchronous packet communications network

• US 7,889,660 B2
• Filed: 08/22/2007
• Issued: 02/15/2011
• Est. Priority Date: 08/22/2006
• Status: Active Grant

• Current Assignee: CenturyLink Intellectual Property LLC (Lumen Technologies, Inc.)
• Original Assignee: Embarq Holdings Company LLC (Lumen Technologies, Inc.)
• Inventors: Bugenhagen, Michael K.
• Primary Examiner(s): Ngo; Ricky
• Assistant Examiner(s): PATEL, CHANDRAHAS B
• Application Number:
  US11/894,879
• Publication Number:
  US 20080049757A1
• Time in Patent Office: 1,273 Days
• Field of Search: 370/236, 370/406, 370/400, 370/235, 370/468, 370/229, 370/252, 370/390, 709/224, 709/249, 709/250, 340/2.1, 340/825.52, 342/352, 342/367, 342/368
• US Class Current: 370/236
• CPC Class Codes: H04L 41/5003 Managing SLA; Interaction between SLA and QoS
• CPC Class Codes: H04L 41/5087 wherein the managed service relates to voice services management of VoIP services H04M7/0081
• CPC Class Codes: H04L 41/509 wherein the managed service relates to media content delivery, e.g. audio, video or TV
• CPC Class Codes: H04L 43/00 Arrangements for monitoring or testing data switching networks
• CPC Class Codes: H04L 43/022 by sampling
• CPC Class Codes: H04L 43/0829 Packet loss
• CPC Class Codes: H04L 43/0852 Delays
• CPC Class Codes: H04L 43/087 Jitter
• CPC Class Codes: H04L 43/0882 Utilisation of link capacity
• CPC Class Codes: H04L 43/10 Active monitoring, e.g. heartbeat, ping or trace-route
• CPC Class Codes: H04L 43/106 using time related information in packets, e.g. by adding timestamps
• CPC Class Codes: H04M 3/2254 in networks
• CPC Class Codes: H04M 7/0084 Network monitoring; Error detection; Error recovery; Network testing

Abstract

A system and method for monitoring performance of an asynchronous network may include communicating a first network performance data packet including a first indicia over an asynchronous network from a first network node to a second network node. A second network performance data packet including a second indicia may be communicated from the first network node to the second network node. At least one communications data packet may be communicated from the first network node to the second network node between communicating the first and second network performance data packets. At least one performance manager counter at the second network node may be incremented in response to receiving each communications data packet between the first and second network performance data packets.

Claims

1. A system, comprising:

a first network node including a plurality of first performance manager counters, each of the first performance manager counters operable to count a different type of network performance information associated with data packets communicated over an asynchronous communications network; and

a second network node including a plurality of second performance manager counters, each of the second performance manager counters operable to count a different type of network performance information associated with data packets communicated over the asynchronous communications network, said first network node configured to communicate a first network performance data packet including a first indicia to said second network node, a second network performance data packet including a second indicia to said second network node, and at least one communications data packet to said second network node between the first and second network performance data packets, said second network node incrementing at least one of the second performance manager counters in response to receiving each communications data packet between the first and second network performance data packets.

2. The system according to claim 1, wherein the first and second indicia are sequenced values indicative of the first and second network performance data packets being communicated in a sequence.

3. The system according to claim 1, wherein the first and second indicia is data representative of the first and second network performance data packets being non-communications data packets.

4. The system according to claim 1, further comprising a centralized server located on the asynchronous network and configured to communicate with each of said first and second network nodes to collect values of the performance manager counters.

5. The system according to claim 4, wherein said centralized server is further configured to communicate a message on a periodic basis to the first and second network nodes to cause each of the performance manager counters to be reset.

6. The system according to claim 4, wherein said centralized server is configured to communicate the first and second network performance packets on a periodic basis, wherein the periodic basis is less than a time for a performance manager counter having the lowest maximum count of the at least one first and second performance manager counters to rollover.

7. The system according to claim 1, wherein each of the first and second performance manager counters include a plurality of performance manager counters configured to count over different time durations.

8. The system according to claim 7, further comprising a third network node, wherein said second network node is configured to include the performance manager counter values of the first performance manager counters and corresponding performance manager counter values of the second performance manager counters in a third network performance data packet being communicated to said third network node.

9. The system according to claim 1, wherein said first network node is configured to include corresponding performance manager counter values of the first performance manager counters in the second network performance data packet being communicated to said second network node.

10. The system according to claim 9, wherein the third network performance data packet includes the second indicia received in the second network performance data packet.

11. The system according to claim 9, wherein said third network node is configured to accumulate performance manager counter values received in the third network performance data packet with corresponding previously received performance manager counter values.

12. The system according to claim 1, wherein the first and second network performance packets are modified IEEE 802.1ag data packets.

13. The system according to claim 1, wherein the at least one first and second performance manager counters are modified IEEE ITU Y.1731 counters.

14. The system according to claim 1, wherein the at least one first and second performance manager counters each include separate counters that accumulate a number of real-time and non-real-time data packets being communicated between the first and second network performance data packets, respectively.

15. A method, comprising:

communicating a first network performance data packet including a first indicia over an asynchronous network from a first network node to a second network node;

communicating a second network performance data packet including a second indicia from the first network node to the second network node;

communicating at least one communications data packet from the first network node to the second network node between the first and second network performance data packets; and

incrementing, at the second network node, at least one performance manager counter of a plurality of performance manager counters operable to count a different type of network performance information in response to receiving each communications data packet between the first and second network performance data packets.

16. The method according to claim 15, wherein communicating the first and second indicia includes communicating first and second indicia that are sequenced values indicative of the first and second network performance data packets being communicated in a sequence.

17. The method according to claim 15, wherein communicating the first and second indicia is data representative of the first and second network performance data packets being non-communications data packets.

18. The method according to claim 15, further comprising communicating with each of the first and second network nodes to collect values of the performance manager counters.

19. The method according to claim 18, further comprising communicating a message on a periodic basis to the first and second network nodes to cause each of the performance manager counters to be reset.

20. The method according to claim 15, wherein communicating a message on a periodic basis is performed less than a time for a maximum count of the at least one performance manager counter to be reached.

21. The method according to claim 15, further comprising counting, by each of the performance manager counters, over different time durations.

22. The method according to claim 15, further comprising:

including corresponding performance manager counter values of the performance manager counters in a third network performance data packet; and

communicating the third network performance data packet from the second network node to a third network node.

23. The method according to claim 22, wherein including the corresponding performance manager counter values in the third network performance data packet further includes including the second indicia received in the second network performance data packet into the third network performance data packet.

24. The method according to claim 22, further comprising accumulating performance manager counter values received in the third network performance data packet with corresponding previously received performance manager counter values.

25. The method according to claim 15, wherein communicating the first and second network performance packets includes communicating modified IEEE 802.1ag data packets.

26. The method according to claim 15, wherein incrementing the performance manager counters includes incrementing modified ITU Y.1731 counters.

27. The method according to claim 15, further comprising:

incrementing a first performance manager counter to accumulate a number of data packets including real-time content being communicated between the first and second network performance data packets; and

incrementing a second performance manager counter to accumulate a number of data packets including non-real-time content being communicated between the first and second performance data packets.