catos 7.4. losing config after reload

[jabouaf]

Hello,

A customer is having the following problem on severals sites.

After a reload, some cat6000-sup1a-withoutMSFC and some cat2948G all running release 7.4.3 lose some part (not all) of the configuration, after a reload.

Sometime the vlan configuration vanished, some other time the SNMP configuration disappeared.

Does anyone already get this kind of problem ?

I found no bug on the bug tools or on the RN for 7.4.x.

Regards,

[baileja]

Never heard anything like that. Can you post the following command results?

show boot

show bootvar

[Prashanth Krishnappa]

For how long were the switches up before? We have one NVRAM corruption bug

http://www.cisco.com/cgi-bin/bugtool/onebug.pl?bugid=CSCdx87646

If you are running into this, you would "checksum failure" in the output of sh ver prior to reload.

I suggest that you upgrade CAT OS to latest 7.6(x) which is general deployment. Note that your Sup1a in 6500 needs 128MB DRAM to run 7.6 code.

[jabouaf]

Hello Prashanth,

I'll go on looking on this way for the cat6000.

What about cat2948G ? Could this bug also match for cat2948g ?

Best regards,

[Prashanth Krishnappa]

Yes. This bug affects all CAT OS based platforms.

[jabouaf]

Hello Prashanth,

On one cat6X00, the sh version from the sh tech do not show me any checksum failure, but I can find this on the "sh log" from the console port after a reload (and loosing some part of configuration):

Console> (enable) show logg buff 1023

2005 Aug 08 07:12:43 %SYS-4-NVLOG:check_block_and_log:Block 0 checksum failed: 0x2CCB(0x2CC9)

2005 Aug 08 07:12:52 %SYS-3-MOD_PORTINTFINSYNC:Port Interface in sync for Module 1

2005 Aug 08 07:12:54 %SYS-1-SYS_ENABLEPS: Power supply 1 enabled

2005 Aug 08 07:12:54 %SYS-1-SYS_ENABLEPS: Power supply 2 enabled

2005 Aug 08 07:12:54 %SYS-5-MOD_PWRON:Module 3 powered up

2005 Aug 08 07:12:55 %SYS-5-MOD_PWRON:Module 4 powered up

2005 Aug 08 06:12:57 %SYS-5-MOD_OK:Module 1 is online

2005 Aug 08 06:13:02 %DTP-5-TRUNKPORTON:Port 1/1 has become dot1q trunk

2005 Aug 08 06:13:02 %DTP-5-TRUNKPORTON:Port 1/2 has become dot1q trunk

2005 Aug 08 06:13:04 %ETHC-5-PORTTOSTP:Port 1/1 joined bridge port 1/1-2

2005 Aug 08 06:13:04 %ETHC-5-PORTTOSTP:Port 1/2 joined bridge port 1/1-2

2005 Aug 08 06:13:55 %SYS-5-MOD_OK:Module 3 is online

2005 Aug 08 06:13:55 %SYS-3-MOD_PORTINTFINSYNC:Port Interface in sync for Module 3

2005 Aug 08 06:13:56 %SYS-5-MOD_OK:Module 4 is online

2005 Aug 08 06:13:56 %SYS-3-MOD_PORTINTFINSYNC:Port Interface in sync for Module 4

So this cat6x00 could match this bug. Do you aggree with me ?

Best regards,

[Prashanth Krishnappa]

Yep.. I agree with you.