ER 5530 Configuration Loss

[fabianoboscatto]

Hi,

We have a ER5530 stack that does all the routing of our company here and last week a very strange thing happened:

We lost all the routing!

I accessed the console and for my surprise: NO CONFIGURATION, NO VLAN, NO IP INTERFACES.

The software version is v5.0.9.027 and our logs did not show any access issue.

It may be a hardware problem?

Any clue?

 

[anthonyanderberg]

Its possible to imagine the configuration being corrupt because of hardware (flash memory) problems or a software problem that corrupted the config during a save or in the course of operations.

Did the switch reboot at that time? (What does the sysUptime say?)

 

[fabianoboscatto]

No, the switch did not rebooted but i restarted just to see if the configuration could return from hell but did not worked.

It already happened to other models like BPS2000, 470-48T...

When it happens i copy and paste a previously configuration and the switch works fine.

Thanx for your reply.

 

[curtismo]

Make sure Autosave is enabled. At the console prompt do a "show autosave". This is usually on by default, but can be turned off by the reload command.

 

[fabianoboscatto]

So, another strange thing that happens is when i try do put a previously saved configuration i receive the following error:

%Data CRC failure.
Operation aborted.

It happens with all the files that i have in my tftp server.
At this morning i uploaded the switch running config into a USB pen-drive and tried to download the config back to the switch and the same message appeared to me.
Conclusion:
The tftp server isn't my problem.

Any clue?

 

[DaddyOfThree]

What version of software are you running on the switches?

There are many many known issues trying to restore the binary configuration file to a switch. I've found that the majority of them have been corrected in v4.7.3 for the 460/470 and v5.1.3 for the 5500.

We had so many issues that we were very thankful when the software started allowing us to backup the ASCII configuration to the TFTP server. We now backup both configurations, binary and ASCII as a precaution if the binary configuration fails to load properly.

Good Luck!

 

[fabianoboscatto]

Hi,

The software version is v5.0.9.027

I only do ASCII backup and always get

%Data CRC failure.
Operation aborted.

When i try to put the ASCII backup configuration into the switch.

I'll try to get the software new version.

Thanx for your reply.