Protocol emulator

• US 20060077895A1
• Filed: 06/04/2004
• Published: 04/13/2006
• Est. Priority Date: 06/04/2004
• Status: Abandoned Application

• Current Assignee: Agilent Technologies, Inc.
• Original Assignee: Agilent Technologies, Inc.
• Inventors: Wright, Cary
• Application Number:
  US10/861,618
• Publication Number:
  US 20060077895A1
• Time in Patent Office: Days
• US Class Current: 370/235
• CPC Class Codes: H04L 41/20 Network management software packages
• CPC Class Codes: H04L 43/50 Testing arrangements
• CPC Class Codes: H04L 61/251 between different IP versions

Abstract

A protocol emulation system including at least one description that describes fields, using a generic format, in a protocol message. An application transforms the at least one description into a machine-readable template useable by a protocol finite state machine that creates protocol messages based upon the template

Claims

1. A protocol emulation system comprising:

at least one description that describes fields, using a generic format, in a protocol message;

an application that transforms the at least one description into a machine-readable template; and

a protocol finite state machine that creates protocol messages based upon the template.

2. A protocol emulation system, as set forth in claim 1, wherein the generic format comprises XML.

3. A protocol emulation system, as set forth in claim 1, wherein the protocol messages are used in a handshake process with a router.

4. A protocol emulation system, as set forth in claim 1, wherein the at lease one description comprises a plurality of descriptions.

5. A protocol emulation system, as set forth in claim 1, wherein the application transforms the at least one description into a reference model.

6. A protocol emulation system, as set forth in claim 5, further comprising:

a graphical user interface that presents the user with a graphical representation of the description and receives modifications to values contained in the description, and wherein the application instantiates the reference model and populates the instance with values received from the graphical user interface.

7. A protocol emulation system, as set forth in claim 6, wherein the application transforms the instance into the machine-readable template.

8. A protocol emulation system, as set forth in claim 1, wherein the template is hex encoded.

9. A protocol emulation system, as set forth in claim 1, further comprising an application that transforms the description into a filter and where in the filter is used to filter a plurality of messages received by the protocol emulation system.

10. A method for controlling a protocol emulator, the method comprising:

creating a description of the structure of data for controlling the protocol emulator, the description being formed using a language generic to a plurality of protocols;

creating a reference model of the data structure using the description;

creating an instance of the reference model with at least some user provided data;

using the instance to create a template to which the protocol emulator is responsive for creating protocol messages; and

transferring the template to the protocol emulator.

11. A method, as set forth in claim 10, wherein the step of creating a description comprises creating an XML file that describes the structure of data.

12. A method, as set forth in claim 10, wherein the description includes instructions on how to vary at least one value across multiple copies of protocol messages.

13. A method, as set forth in claim 10, wherein the description includes values that are based on other values within the description.

14. A method, as set forth in claim 10, wherein the step of preparing a description comprises describing the data in a hierarchical manner.

15. A method, as set forth in claim 10, wherein the step of preparing a description of the structure of the data comprises defining fields for holding values, other fields, or attributes of the fields.

16. A method, as set forth in claim 15, wherein the attributes include a full name of the field, a length of the field, a presentation format of the field, sequencing instructions, and a range of possible values for the element.

17. A method, as set forth in claim 10, further comprising:

creating a filter based on the description; and

using the filter to filter a plurality of messages received by the protocol emulation system.

18. A method of controlling a protocol emulator, the method comprising:

creating an XML description of at least one message used by the protocol emulator;

presenting a user with a graphical display of the description;

permitting the user to adjust values in a plurality of fields of the description; and

creating a template for controlling a protocol finite state machine based on the description and the values as adjusted by the user.

19. A method, as set forth in claim 18, further comprising;

permitting the user to specify how at least one field is to vary from message to message in a sequence of messages; and

including in the template instructions on how to vary the at least one field from message to message.

20. A method, as set forth in claim 18, further comprising:

permitting the user to set filter values in a plurality of fields of the description;

creating a filter based on the description and the filter values set by the user; and

using the filter to filter a plurality of messages received by the protocol emulation system.