Troubleshooting link and protocol in a wireless network

• US 8,040,835 B2
• Filed: 02/17/2006
• Issued: 10/18/2011
• Est. Priority Date: 02/17/2006
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Patil, Jeevan Shashikant, O'Hara, Robert B. Jr., Stephenson, David Sheldon, Olson, Timothy S.
• Primary Examiner(s): Ly; Nghi H
• Application Number:
  US11/356,488
• Publication Number:
  US 20070197206A1
• Time in Patent Office: 2,069 Days
• Field of Search: 370/241, 370/328, 370/338, 455/423, 455/67.11, 455/115.1, 455/226.1
• US Class Current: 370/328
• CPC Class Codes: H04L 41/06 Management of faults, events, alarms or notifications
• CPC Class Codes: H04L 41/0836 to enhance reliability, e.g. reduce downtime
• CPC Class Codes: H04L 41/0886 Fully automatic configuration
• CPC Class Codes: H04L 41/344 Out-of-band transfers
• CPC Class Codes: H04L 43/0811 by checking connectivity
• CPC Class Codes: H04L 43/0829 Packet loss
• CPC Class Codes: H04L 43/16 Threshold monitoring
• CPC Class Codes: H04L 43/50 Testing arrangements
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

Methods, apparatuses, and systems directed to facilitating troubleshooting wireless connectivity issues in a wireless network. In accordance with one embodiment of the present invention, either a diagnostic supplicant in the wireless client or a diagnostic manager initiates a troubleshooting protocol between the diagnostic supplicant and the diagnostic manager over a diagnostic link in response to one or more events. In one embodiment, after the diagnostic supplicant establishes a link to a diagnostic manager via a diagnostic link, the diagnostic supplicant generates and transmits a problem report to the diagnostic manager. The problem report initiates a troubleshooting protocol between the diagnostic manager and the diagnostic supplicant.

Claims

1. A wireless client, comprising:

one or more processors;

a memory;

a network interface;

a diagnostic supplicant application, physically stored in the memory, comprising instructions operable to cause the one or more processors and the wireless client to;

responsive to a failure to establish a wireless connection with a wireless network, identify a diagnostic link to a diagnostic manager based on access information transmitted by a wireless access point in one or more wireless frames advertising the availability of the diagnostic link, wherein the diagnostic link is a communications link supported by a network access node and dedicated to exchange of diagnostic information between diagnostic supplicants and diagnostic managers;

establish, using the transmitted access information, a diagnostic link connection to the network access node; and

exchange diagnostic information with the diagnostic manager through the network access node over the diagnostic link, wherein the diagnostic information relates to the wireless connection with the wireless network.

2. The wireless client of claim 1 wherein the diagnostic supplicant application further comprises instructions operable to cause the one or more processors and the wireless client to:

collect radio frequency (RF) measurement data in response to an RF measurement data request from the diagnostic manager; and

transmit the RF measurement data to the diagnostic manager.

3. The wireless client of claim 1 wherein the diagnostic supplicant application further comprises instructions operable to cause the one or more processors and the wireless client to:

gather network data during execution of a diagnostic protocol.

4. The wireless client of claim 1 wherein the diagnostic supplicant application further comprises instructions operable to cause the one or more processors and the wireless client to:

perform one or more diagnostic tests.

5. The wireless client of claim 1 wherein the diagnostic supplicant application further comprises instructions operable to cause the one or more processors and the wireless client to:

generate a problem report; and

transmit the problem report to the diagnostic manager.

6. The wireless client of claim 1 wherein the diagnostic supplicant application further comprises instructions operable to cause the one or more processors and the wireless client to:

transmit client detail data in response to client detail request from the diagnostic manager.

7. The wireless client of claim 1 wherein the diagnostic link is implemented as at least one of a wired connection, a physical channel, a multiplex channel, an existing wireless local area network (WLAN) channel, and a peer channel.

8. The wireless client of claim 1 wherein the diagnostic link is implemented across at least the following nodes:

a peer wireless client; and

a wireless access point operative to communicate with a second wireless client.

9. In a wireless client, a method comprising:

attempting to establish a wireless connection with a wireless network;

responsive to a failure to establish the wireless connection, identifying a diagnostic link to a diagnostic manager based on access information transmitted by a wireless access point in one or more wireless frames advertising the availability of the diagnostic link, wherein the diagnostic link is a communications link supported by a network access node and dedicated to exchange of diagnostic information between diagnostic supplicants and diagnostic managers;

establishing, at the wireless client, a diagnostic link connection network access node, using the transmitted access information, ; and

exchanging diagnostic information with the diagnostic manager through the network access node over the diagnostic link, wherein the diagnostic information relates to the wireless connection.

10. The method of claim 9 further comprising:

collecting radio frequency (RF) measurement data in response to an RF measurement data request from the diagnostic manager; and

transmitting the RF measurement data to the diagnostic manager.

11. The method of claim 9 further comprising gathering network data during execution of a diagnostic protocol.

12. The method of claim 9 further comprising perform one or more diagnostic tests.

13. The method of claim 9 further comprising:

generating a problem report; and

transmitting the problem report to the diagnostic manager.

14. The method of claim 9 further comprising transmitting client detail data in response to client detail request from the diagnostic manager.

15. The method of claim 9 wherein the diagnostic link is implemented as at least one of a wired connection, a physical channel, a multiplex channel, an existing wireless local area network (WLAN) channel, and a peer channel.

16. The method of claim 9 wherein the diagnostic link is implemented across at least the following nodes:

a peer wireless client; and

a wireless access point operative to communicate with a second wireless client.

17. A wireless client comprising:

means for identifying a diagnostic link to a diagnostic manager based on access information transmitted by a wireless access point in one or more wireless frames advertising the availability of the diagnostic link, wherein the diagnostic link is a communications link supported by a network access node and dedicated to exchange of diagnostic information between diagnostic supplicants and diagnostic managers;

means for establishing a wireless connection with a wireless network;

means for establishing, using the transmitted access information, a diagnostic link connection to the network access node ; and

means for exchanging diagnostic information relating to the wireless connection with the diagnostic manager through the network access node over the diagnostic link.