System and method for modifying connectivity fault management packets

• US 8,576,722 B2
• Filed: 05/31/2007
• Issued: 11/05/2013
• Est. Priority Date: 08/22/2006
• Status: Active Grant

• Current Assignee: Embarq Holdings Company LLC (Lumen Technologies, Inc.)
• Original Assignee: CenturyLink Intellectual Property LLC (Lumen Technologies, Inc.)
• Inventors: Bugenhagen, Michael K.
• Primary Examiner(s): Thier, Michael
• Assistant Examiner(s): MENSAH, PRINCE AKWASI
• Application Number:
  US11/809,915
• Publication Number:
  US 20080049628A1
• Time in Patent Office: 2,350 Days
• Field of Search: 370236-2362, 370241-242, 370/216, 370/224, 370/229, 370/230, 370/232, 370/235, 370/244, 370/248, 370/24, 370/9, 370/252, 370/254, 370/389, 370/392, 370/395, 370/401, 370/404
• US Class Current: 370/241
• CPC Class Codes: H04L 41/0213 Standardised network management protocols, e.g. simple network management protocol [SNMP]
• CPC Class Codes: H04L 41/0677 Localisation of faults
• CPC Class Codes: H04L 43/026 using flow identification
• CPC Class Codes: H04L 43/0811 by checking connectivity
• 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 43/12 Network monitoring probes
• CPC Class Codes: H04Q 2213/13109 Initializing, personal profile
• CPC Class Codes: H04Q 2213/13162 Fault indication and localisation
• CPC Class Codes: H04Q 2213/13166 Fault prevention
• CPC Class Codes: H04Q 2213/13345 Intelligent networks, SCP
• CPC Class Codes: H04Q 2213/13389 LAN, internet
• CPC Class Codes: H04Q 3/0075 Fault management techniques
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition

Abstract

A system and method for modifying connectivity fault management packets. Network performance information is extracted from a communications network using connectivity fault management packets. The connectivity fault management packets are received. The configuration of the connectivity fault management packets is modified to obtain additional network performance information from the communications network.

Claims

1. A method for obtaining network performance information, the method comprising:

extracting network performance information from a communications network using one or more performance information packets;

receiving the performance information packets;

and modifying the performance information packets in response to the network performance information, wherein the modifying the performance information packets includes including instructions within the performance information packets to obtain network performance information at a node that was previously a pass-through node from which network performance information was not obtained, and wherein modifying the performance packets further includes including instructions within the performance information packets to obtain alternative network performance information not previously extracted from the communications network by the pass-through node.

2. The method of claim 1, wherein the modifying comprises:

changing the frequency at which the performance information packets are passed through the communications network for obtaining more information about a network performance problem.

3. The method of claim 1, wherein the performance information packets request information from a specified access point.

4. The method of claim 1, further comprising:

injecting a command for a specified access point in the performance information packets based on the network performance information.

5. The method of according to claim 4, wherein the command instructs the specified access point to any of reset itself, reboot itself, reconfigure itself, run diagnostic routines, troubleshoot itself, increase buffered data, refresh a routing table, terminate a process, terminate an operation, and modify a process.

6. The method of claim 1, wherein the modifying comprises:

rerouting the performance information packets in order to obtain additional information about a portion of the communications network or a problem access point.

7. The method of claim 6, wherein rerouting further comprises:

rerouting the performance information packets to avoid the problem access point.

8. The method of claim 1, wherein modifying further comprises:

changing permissions of the performance information packets in order to grant the performance information packets access to information from components of the communications network.

9. The method of claim 1, wherein the modifying further comprises:

limiting the network performance information retrieved by the performance information packets.

10. The method of claim 1, further comprising:

permitting the network performance information to remain in the performance information packets when passing through a network-to-network interface.

11. The method of claim 1, further comprising:

limiting the network performance information in the performance information packets that passes from the communications network to another communications network based on a security policy.

12. The method of claim 1, wherein the modifying is made based on historical data from the performance information packets.

13. The method of claim 1, wherein the modifying occurs based on an event trigger.

14. The method of claim 1, wherein the modifying further comprises:

retrieving the network performance information from an access point that was not previously interrogated.

15. The method of claim 1, wherein the modifying is controlled by a secondary communications network in communication with the communications network.

16. A communication system for modifying performance information data packets comprising:

a processing system configured to gather network performance information from a communications networks using performance information data packets communicated along a path of the communications network and modify the performance information data packets in response to the network performance information to obtain additional network performance information from a node along the path that was previously a pass-through node from which network performance information was not obtained and wherein modifying the performance packets further includes including instructions within the performance information packets to obtain alternative network performance information not previously extracted from the communications network by the pass-through node;

and the communications network composed of access nodes for performing communications functionality.

17. The communication system of claim 16, further comprising:

one or more secondary networks in communication with the communications network that may modify the performance information packets based on specified permissions.

18. A network manager comprising:

a processor configured to execute a set of instructions;

a memory configured to store the set of instructions, wherein the set of instructions extract network performance information from a communications network using performance information packets, where the network performance information includes transmission rate, transmission quality, and transmission connectivity;

and wherein the set of instructions modify the configuration of the performance information packets to obtain additional network performance information from a node that was previously a pass-through node from which network performance information was not obtained in response to the network performance information, and wherein modifying the performance packets further includes including instructions within the performance information packets to obtain alternative network performance information not previously extracted from the communications network by the pass-through node.

19. The network manager according to claim 18, wherein the set of instructions injects a command for a specified access point in the performance information packets based on the network performance information.