Release Notes

Release Notes for Cisco CDA Visual Quality Experience Application Release 3.10

System Requirements

The VQE-S runs on either a CDE111/ CDE250 2V0. The VCPT and VCDS run on the same hardware.

The CDE111 platform has two models: CDE111-2-146TXA-K9 and CDE111-2-146TXD-K9.

The system comes with the software pre-installed—either VQE-S software or Tools (VCPT and VCDS)

software. In each case, the required Linux, Apache web server, and other software is also pre-installed.

To access the VQE-S Application Monitoring Tool (AMT), the VCDS AMT, or the VCPT, you need a

web browser. For these tools, the following web browsers are supported:

• Microsoft Internet Explorer version 6.0 or later

• Mozilla Firefox version 2.0 or later

The minimum screen resolution required for VQE-S AMT, VCDS AMT, and VCPT is 1024 x 768 pixels.

To display the Channels Status Summary graph of active, inoperative, and inactive channels in the AMT

VQE-S Status window, Adobe Flash Player must be installed on the computer that hosts the browser

accessing AMT. Adobe Flash Player is free and can be found at this URL:

http://get.adobe.com/flashplayer/

Important Notes

The following important notes apply to all VQE Release 3.10 installations:

Security Restrictions for Logins and Root Privileges

For security reasons, the following restrictions apply to VQE:

• Root user cannot use Secure Shell (SSH) to log in to a CDE111/ CDE250 2V0 that hosts VQE-S or

VCPT. Also, the root user cannot log in to VQE-S AMT, VCDS AMT, or VCPT. The vqe user should

be used instead. The vqe user is a pre-created Linux user ID and has its password set during

CDE111/ CDE250 2V0 initial system configuration.

• Only users in the wheel group can use the su or sudo commands. By default, the vqe user is in the

wheel group.

If you want to add user accounts to the wheel group so that additional users can use su and sudo, log in

as root and issue the following command:

usermod -G wheel username

In the preceding, username specifies the user who will be added to the wheel group.

Random “rtc: lost some interrupts at 8192Hz” and “localhost kernel: netlink: 28

bytes leftover after parsing attributes” Messages Displayed on Serial Console

A message or block of messages indicating “rtc” has lost some interrupts can appear sporadically on the

serial console, usually after entering a command, but the message is unrelated to any specific command.

No workaround is needed. This does not appear to have any operational impact and is believed to be

information only related to an underlying Linux process.