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Webcast-Catalyst9k
New Member

2960 switch configuration issues

We have multiple 2960 in the field and are having issue holding the Vlan1 ip address. Seems that after a period of time if the switch gets rebooted 1 or 2 things happen. The switch loses it's entire config or the ip address that is assigned to the vlan1 interfaces disappears. All of the ones in the field have the same configuration. Has anyone heard about this? The IOS code is:

c2960-lanbasek9-mz.122-25.FX.bin

7 REPLIES

Re: 2960 switch configuration issues

I have not heard of such a problem. I presume you do save your configurations (copy run start) each time you do any changes?

Or do you perhaps configure from a TFTP server? Do you have service config anywhere in your configuration?

What is in your config register? Could you do a show version please?

Kevin Dorrell

Luxembourg

New Member

Re: 2960 switch configuration issues

Please note the confreg 0xF

Cisco IOS Software, C2960 Software (C2960-LANBASEK9-M), Version 12.2(25)FX, RELE

ASE SOFTWARE (fc1)

Copyright (c) 1986-2005 by Cisco Systems, Inc.

Compiled Wed 12-Oct-05 23:14 by yenanh

ROM: Bootstrap program is C2960 boot loader

BOOTLDR: C2960 Boot Loader (C2960-HBOOT-M) Version 12.2(25r)SEE1, RELEASE SOFTWA

RE (fc1)

2960_68171 uptime is 42 minutes

System returned to ROM by power-on

System image file is "flash:c2960-lanbasek9-mz.122-25.FX.bin"

This product contains cryptographic features and is subject to United

States and local country laws governing import, export, transfer and

use. Delivery of Cisco cryptographic products does not imply

third-party authority to import, export, distribute or use encryption.

Importers, exporters, distributors and users are responsible for

compliance with U.S. and local country laws. By using this product you

agree to comply with applicable laws and regulations. If you are unable

to comply with U.S. and A summary of U.S. laws governing Cisco cryptographic products may be found at:

http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to

export@cisco.com.

cisco WS-C2960-24TT-L (PowerPC405) processor (revision B0) with 61440K/4088K byt

es of memory.

Processor board ID FOC1108Z5D8

Last reset from power-on

1 Virtual Ethernet interface

24 FastEthernet interfaces

2 Gigabit Ethernet interfaces

The password-recovery mechanism is enabled.

64K bytes of flash-simulated non-volatile configuration memory.

Base ethernet MAC Address : 00:1B:53:36:0E:00

Motherboard assembly number : 73-10390-03

Power supply part number : 341-0097-02

Motherboard serial number : FOC11072R9Z

Power supply serial number : DCA11038B6F

Model revision number : B0

Motherboard revision number : C0

local laws, return this product immediately.

64K bytes of flash-simulated non-volatile configuration memory.

Base ethernet MAC Address : 00:1B:53:36:0E:00

Motherboard assembly number : 73-10390-03

Power supply part number : 341-0097-02

Motherboard serial number : FOC11072R9Z

Power supply serial number : DCA11038B6F

Model revision number : B0

Motherboard revision number : C0

Model number : WS-C2960-24TT-L

System serial number : FOC1108Z5D8

Top Assembly Part Number : 800-27221-02

Top Assembly Revision Number : C0

Version ID : V02

CLEI Code Number : COM3L00BRA

Hardware Board Revision Number : 0x01

Switch Ports Model SW Version SW Image

------ ----- ----- ---------- ----------

* 1 26 WS-C2960-24TT-L 12.2(25)FX C2960-LANBASEK9-M

Configuration register is 0xF

New Member

Re: 2960 switch configuration issues

Hi Tom, I have a similar scenario. I have 2950's and 2960's that either lose their configurations or simply stop responding to a ping although they continue to function as a switch when that happens. Keep in mind the config could also be erased by holding in the mode button for too long. I have not seen any remedy for a few months now on this forum as to why they stop responding. A Cisco case may have to be opened to get the right attention, unless someone can reply to this thread?

Purple

Re: 2960 switch configuration issues

We have not seen this problem and we have a lot of 2950's but it rings a bell and I think it was a code issue if the code is really old. We are running 12.1.22ea10 and have been for some time and have not seen an issue , my reccomendation would be to upgrade the code to the latest release. Have never seen a box lose the config unless you have unstable power where it goes down , starts come back and then quickly goes down again , we have seen a router or 2 where it loses the config in nvram.

New Member

Re: 2960 switch configuration issues

Hi Tom,

I have an almost identical issue in that I am losing all configuration and going back to the initial config dialogue.

Cisco IOS Software, C2960 Software (C2960-LANBASE-M), Version 12.2(35)SE5, RELEASE SOFTWARE (fc1)

Copyright (c) 1986-2007 by Cisco Systems, Inc.

Compiled Thu 19-Jul-07 20:06 by nachen

Image text-base: 0x00003000, data-base: 0x00D40000

ROM: Bootstrap program is C2960 boot loader

BOOTLDR: C2960 Boot Loader (C2960-HBOOT-M) Version 12.2(25r)SEE1, RELEASE SOFTWARE (fc1)

HOSTNAME uptime is 1 day, 54 minutes

System returned to ROM by power-on

System image file is "flash:c2960-lanbase-mz.122-35.SE5/c2960-lanbase-mz.122-35.SE5.bin"

cisco WS-C2960-24TC-L (PowerPC405) processor (revision E0) with 61440K/4088K bytes of memory.

Processor board ID FOC1144Z25R

Last reset from power-on

2 Virtual Ethernet interfaces

24 FastEthernet interfaces

2 Gigabit Ethernet interfaces

The password-recovery mechanism is enabled.

64K bytes of flash-simulated non-volatile configuration memory.

Base ethernet MAC Address : 00:1E:49:75:B0:00

Motherboard assembly number : 73-9832-07

Power supply part number : 341-0097-02

Motherboard serial number : FOC1143505H

Power supply serial number : AZS114103QF

Model revision number : E0

Motherboard revision number : A0

Model number : WS-C2960-24TC-L

System serial number : FOC1144Z25R

Top Assembly Part Number : 800-26671-03

Top Assembly Revision Number : B0

Version ID : V03

CLEI Code Number : COM3K00BRB

Hardware Board Revision Number : 0x01

Switch Ports Model SW Version SW Image

------ ----- ----- ---------- ----------

* 1 26 WS-C2960-24TC-L 12.2(35)SE5 C2960-LANBASE-M

Configuration register is 0xF

New Member

2960 switch configuration issues

Hi,

Have you maneged to solve this problem?

I have a new switch 2960S  with SW Version 12.2(55)S and after one working moth started loosing configurantion a rebooting.

Thanks,

Best Regards

MC

Hall of Fame Super Gold

2960 switch configuration issues

If it's rebooting then chances are there's a crashinfo file(s).

Post the last three files.

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