Guest

Cisco Services Modules

Field Notice: NM-NAM: "Chip reports voltage low" Error When Configuring IP Address


November 22, 2004


Products Affected

Product

2610 - NM-NAM

2610XM - NM-NAM

2611 - NM-NAM

2611XM - NM-NAM

2612 - NM-NAM

2613 - NM-NAM

2620 - NM-NAM

2620XM - NM-NAM

2621 - NM-NAM

2621XM - NM-NAM

2650XM - NM-NAM

2651XM - NM-NAM

2691 - NM-NAM

2811 - NM-NAM

2821 - NM-NAM

2851 - NM-NAM

3660 SER-CO - NM-NAM

3660 SER-ENT - NM-NAM

3725 - NM-NAM

3745 - NM-NAM

 

Problem Description

Some NM-NAMs shipped with a new Flash part that is not compatible with the NM-NAM application version 3.2(1a), Bootloader version 1.0.6 and Helper Image version 1.1(1). The images may fail to read, write to, or erase the Micron StrataFlash.

Your NM-NAM is not affected if your NM-NAM is already running either NAM software 3.2(1b) or later or NAM software 3.2(1a) patch 1 or a later patch.

Background

The problem is caused by a decoding glitch in the Micron StataFlash hardware. The flash driver needs a longer time to write to the flash. Cisco has taken full corrective action.

Problem Symptoms

When you try to configure the NM-NAM, the following error appears:

root@nm-nam# ip address 10.10.10.10 255.255.254.0 
Chip reports voltage low on erase: status 0xa8 

If the NM-NAM reboots, the configuration related to the IP parameters will be lost and the NM-NAM will lose the ability to successfully upgrade any of its images.

Workaround/Solution

Log into the router CLI and configure the Analysis Module Interface of the NM-NAM module

Configuring the Analysis-Module Interface on the Router

Session to the NAM CLI from the router CLI and verify the Management Interface using the show ip command.

root@nm-nam # show ip 
IP address: 172.20.110.226 
Subnet mask: 255.255.255.224 
IP Broadcast: 172.20.255.255 
IP Interface: Internal 
DNS Name: nam-3725.cisco.com 

When the IP Interface parameter is set to Internal then configure the Management Interface in the same subnet as the Analysis-Module Interface on the router. In the above output if the IP interface parameter is set to "External", then connect the external port of the NAM to a switch or router and then configure external port as the NAM Management Interface. Refer to How to Configure and Manage the Network Analysis Module (NM-NAM) to Configure the NAM Management Interface.

The proper method to resolve this problem is to apply the 3.2 patch 1 or later to your NM-NAM application software.

The patch image name is: nam-app.3-2.patch.3.bin.

The NAM patch can be found on Cisco.com on the Software Center page under Cisco 2600/3660/3700 Series NAM

Note:  Applying the patch can fail if the date/time is not set correctly on the router. See the patch readme file for more details.

If you see the error message, Error : Verification failed, while applying the patch, you need to fix the system date of the NM-NAM. The NM-NAM by default gets its date/time from the router's IOS. So set the current date/time on the router CLI and reload the NM-NAM.

After the patch installation reboot the NAM. The patch would upgrade the Bootloader Image to 1.0.6bN and the Helper Image 1.1(1a). Verify the Bootloader image during NAM bootup process and the Helper Image version using the show version command on the NAM CLI.

DDTS

To follow the bug ID link below and see detailed bug information, you must be a registered user and you must be logged in.

DDTS

Description

CSCee14080 (registered customers only)

NM-NAM cannot save config with voltage low on erase error

 

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:

Receive Email Notification For New Field Notices

Product Alert Tool - Set up a profile to receive email updates about reliability, safety, network security, and end-of-sale issues for the Cisco products you specify.