Validation of call processing network performance

• US 6,879,562 B2
• Filed: 05/20/2003
• Issued: 04/12/2005
• Est. Priority Date: 11/22/1999
• Status: Expired due to Fees

• Current Assignee: Verizon Patent and Licensing Incorporated (Verizon Communications Inc.)
• Original Assignee: MCI Incorporated (Verizon Communications Inc.)
• Inventors: Hoefelmeyer, Ralph L., Hutchinson, Michael L.
• Primary Examiner(s): Chin, Wellington
• Assistant Examiner(s): PHAM, BRENDA H
• Application Number:
  US10/441,618
• Publication Number:
  US 20030198186A1
• Time in Patent Office: 693 Days
• Field of Search: 370400-406, 370/395, 370/397, 370/399, 370/389, 370/230, 370/233, 370/235, 370/218, 370/285, 370/394, 370/241, 370/247, 370/251, 370/246, 370/250, 370/245
• US Class Current: 370/241
• CPC Class Codes: H04L 12/4604 LAN interconnection over a backbone network, e.g. Internet, Frame Relay
• CPC Class Codes: H04L 2012/5667 IP over ATM
• CPC Class Codes: H04L 2012/5684 Characteristics of traffic flows
• CPC Class Codes: H04L 49/20 Support for services
• CPC Class Codes: H04L 49/253 using establishment or release of connections between ports
• CPC Class Codes: H04L 49/352 Gigabit ethernet switching [GBPS]
• CPC Class Codes: H04L 49/555 Error detection
• CPC Class Codes: H04L 49/602 Multilayer or multiprotocol switching, e.g. IP switching

Abstract

A call processing network performance verification and validation system and test methodology. The call processing network implements Internet Protocol (IP) subnet topology, ATM WAN configuration, equipment placement, and device configuration to provide partitioning of a call processing application across multiple sites. The partitioning reduces latency for mission critical messages, while providing for necessary provisioning traffic needs. Further, the overall topology provides the redundancy and resiliency necessary for mission critical call processing application, utilizing the IP subnets, ATM permanent virtual circuits, network device configuration, and server segregation to achieve Quality of Service (QoS). The validation testing method and system proves out the various segregated routes, verifies subnet integrity and measures total latency and data path traversal in a verifiable manner.

Claims

1. A network test tool comprising:

a user interface adapted to receive an identification of one or more hosts through which a data buffer can be sent, wherein the identification includes at least one host name and an associated port number for the one or more hosts;

an initiator that associates a sequence number and time stamp with the data buffer; and

a network path test tool dameon adapted to forward the data buffer to the one or more hosts based on the identification and to prepare and forward a report of an elapsed time at a final host to the user interface.

2. The tool of claim 1, further comprising a process configured to validate the identification and one or more associated command line arguments, and to build the data buffer to send to the one or more hosts.

3. The tool of claim 2, wherein the data buffer comprises total size information, sequence number information, number of hosts information, host address information, host port information and host timestamp information.

4. The tool of claim 1, wherein the data buffer is forwarded at specific intervals, and, for each data buffer, a new sequence number and timestamp are assigned by the initiator.

5. The tool of claim 1, further comprising a socket management process that opens a protocol dependent socket upon validation of the identification and one or more associated command line arguments.

6. The tool of claim 1, wherein the one or more hosts create a path over which at least one of the following tests can be performed:

path validation, path latency, network interface card impact, failover timings, fallback timings and high load impact tests.

7. The tool of claim 1, further comprising a traffic use process that determines whether the data buffer uses the one or more hosts specified by the identification.

8. The tool of claim 1, further comprising a logger that analyzes returned packets and determines a round trip time.

9. The tool of claim 1, wherein the data buffer comprises packets that comprise a file specification.

10. The tool of claim 1, further comprising an application script adapted to perform a traceroute to the one or more hosts.

11. A network test methodology comprising:

receiving an identification of one or more hosts through which a data buffer can be sent, wherein the identification includes at least one host name and an associated port number for the one or more hosts;

associating a sequence number and time stamp with the data buffer; and

forwarding the data buffer to the one or more hosts based on the identification and preparing and forwarding a report of an elapsed time at a final host to the user interface.

12. The method of claim 11, further comprising a validating the identification and one or more associated command line arguments, and building the data buffer to send to the one or more hosts.

13. The method of claim 12, wherein the data buffer comprises total size information, sequence number information, number of hosts information, host address information, host port information and host timestamp information.

14. The method of claim 11, wherein the data buffer is forwarded at specific intervals, and, for each data buffer, a new sequence number and timestamp are assigned.

15. The method of claim 11, further comprising opening a protocol dependent socket upon validation of the identification and one or more associated command line arguments.

16. The method of claim 11, wherein the one or more hosts create a path over which at least one of the following tests can be performed:

path validation, path latency, network interface card impact, failover timings, faliback timings and high load impact tests.

17. The method of claim 11, further comprising determining whether the data buffer uses the one or more hosts specified by the identification.

18. The method of claim 11, further comprising analyzing returned packets and determining a round trip time.

19. The method of claim 11, wherein the data buffer comprises packets that comprise a file specification.

20. The method of claim 11, further comprising performing a traceroute to the one or more hosts.

21. A network test system comprising:

means for receiving an identification of one or more hosts through which a data buffer can be sent, wherein the identification includes at least one host name and an associated port number for the one or more hosts;

means for associating a sequence number and time stamp with the data buffer; and

means for forwarding the data buffer to the one or more hosts based on the identification and preparing and forwarding a report of an elapsed time at a final host to the user interface.