LINK LAYER THROUGHPUT TESTING

• US 20090287816A1
• Filed: 07/11/2008
• Published: 11/19/2009
• Est. Priority Date: 05/14/2008
• Status: Abandoned Application

• Current Assignee: Trapeze Networks Incorporated (Juniper Networks Incorporated)
• Original Assignee: Trapeze Networks Incorporated (Juniper Networks Incorporated)
• Inventors: Matta, Sudheer P.C., Gast, Matthew S.
• Application Number:
  US12/172,195
• Publication Number:
  US 20090287816A1
• Time in Patent Office: Days
• US Class Current: 709/224
• CPC Class Codes: H04L 43/0852 Delays
• CPC Class Codes: H04L 43/0864 Round trip delays
• CPC Class Codes: H04L 43/50 Testing arrangements

Abstract

A technique for testing a network path involves making use of feedback enabling parameters. Values for the feedback enabling parameters can be generated from a measurement of path performance. The technique can be implemented for wireless paths. The technique can also be implemented for multi-hop paths.

Claims

1. A method comprising:

triggering a test of a path between a first station and a second station;

identifying one or more feedback enabling parameters associated with the path;

transmitting a test packet from the first station to the second station;

measuring, in response to the test packet, performance of the path between the first station and the second station;

generating one or more feedback enabling parameter values from the measured performance of the path, wherein the feedback enabling parameter values facilitate changing characteristics of the path.

2. The method of claim 1 further comprising performing an action to improve performance of the path.

3. The method of claim 1 further comprising performing an action to decrease performance of the path to slow down communications on the path.

4. The method of claim 1 wherein the one or more feedback enabling parameters are selected from:

a prioritization parameter, an aggregation parameter, a security parameter, and a data rate parameter.

17. The method of claim 1 further comprising routing network traffic based on the measured performance of the path.

5. A system comprising

a first station;

a layer 2 performance engine (L2PE);

a second station;

wherein, in operation,

the first station transmits a test packet to the second station to initiate measurement of the performance of a path between the first station and the second station,

the L2PE measures performance of the path between the first station and the second station,

the L2PE generates feedback enabling parameter values from the measured performance of the path,

the L2PE records the feedback enabling parameter values.

6. The system of claim 5 further comprising one or more intermediary mesh points;

wherein the path includes the one or more intermediary mesh points.

7. The system of claim 5 further comprising a layer 2 performance test controller configured to initiate the test and receive the feedback enabling parameters.

8. The system of claim 5 further comprising a layer 3 performance engine.

9. The system of claim 5 wherein the first station includes an access point (AP).

10. The system of claim 5 wherein the first station includes a mesh point.

11. The system of claim 5 wherein the first station includes a mesh point portal or mesh AP.

12. The system of claim 5 wherein the second station includes a client station.

13. The system of claim 5 wherein the second station includes a mesh station.

14. The system of claim 5 wherein the second station includes a mesh point.

15. The system of claim 5 wherein the second station includes a mesh AP.

16. A method comprising:

triggering a test of a multi-hop path between a mesh point and a station, wherein the path includes one or more intermediary mesh points;

identifying one or more feedback enabling parameters associated with the multi-hop path;

measuring performance of the multi-hop path between the mesh point and the station;

generating values of the feedback enabling parameters in accordance with the measured performance;

recording the feedback enabling parameter values.

18. A system comprising:

a first mesh point;

a second mesh point;

a mesh path performance engine (MPPE);

one or more intermediary mesh points;

wherein, in operation,

the MPPE receives a command to trigger a test of a multi-hop path between the first mesh point and the second mesh point;

the MPPE identifies one or more feedback enabling parameters associated with the multi-hop path;

the first mesh point transmits a test packet to the second mesh point via the multi-hop path;

the MPPE measures performance of the multi-hop path between the first mesh point and the second mesh point through the one or more intermediary mesh points;

the MPPE generates feedback enabling parameter values from the measured performance of the multi-hop path;

the MPPE records the feedback enabling parameter values.

19. The system of claim 18 wherein, the MPPE measures performance of a second path between the first mesh point and the second mesh point through a second one or more intermediary mesh points.

20. The system of claim 18 further comprising a high level engine (HLE) wherein the HLE instructs the MPPE to test the multi-hop path.