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Cisco 7800 Series Media Convergence Servers

Field Notice: FN - 62485 - Media Convergence Servers With Hyperthreading Enabled May Experience Call Processing Errors


September 13, 2006

NOTICE:

THIS FIELD NOTICE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTY OF MERCHANTABILITY. YOUR USE OF THE INFORMATION ON THE FIELD NOTICE OR MATERIALS LINKED FROM THE FIELD NOTICE IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS FIELD NOTICE AT ANY TIME.


Products Affected

Product

Operating System (OS) - Microsoft Windows 2000

Problem Description

Applications running on Commercially Available Microsoft Windows 2000 Operating System:

  • Unified Contact Center Enterprise (CCE)

  • Unified Contact Center Hosted (CCH)

  • Unified Intelligent Contact Management Enterprise (ICME)

  • Unified Intelligent Contact Management Hosted (ICMH)

  • Unified Customer Voice Portal (CVP)

Note: Applications running on the Commercially Available Microsoft Windows 2003 Operating System are not affected by this notice. These applications can have Hyperthreading enabled and function properly.

Background

In the course of monitoring server activity, it was found that a third party server monitoring process was consuming a large percentage of CPU resources for a sustained period (2 - 8+ seconds) of time. This caused delays in processing messages and transactions.

Problem Symptoms

With Hyperthreading enabled, the issues caused are not always the same. The end caller might experience various types of failures.

The main characteristic that can be observed is exceedingly high CPU utilization on the server. This can be observed using by using the Windows Task Manager Performance Monitor Tool. While this may not be due to specific Cisco related applications and processes, those applications and processes can be adversely affected by the degradation in overall server performance.

Workaround/Solution

For the following applications which run on Commercially Available Microsoft Windows 2000 Operating System, please disable Hyperthreading:

  • Unified Contact Center Enterprise (CCE)

  • Unified Contact Center Hosted (CCH)

  • Unified Intelligent Contact Management Enterprise (ICME)

  • Unified Intelligent Contact Management Hosted (ICMH)

  • Unified Customer Voice Portal (CVP)

  • Unity Bridge

The procedure to disable Hyperthreading will vary with MCS models. The flag is found in the BIOS settings, typically under the Advanced Settings menu.

Revision History

Revision

Date

Comment

1.0

13-SEP-2006

Initial Public Release

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

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