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New Member

Problem With Switch 4507

I had a problem stranger with a router, it stay inhibited, when I was making changes in interface of Switch.

That happen monday 15-04-09

The switch stay inhibited, all computer, server, and ip phone disconnected of the network, after five minute the switch can to re-establish their service.

The switch has 18 weeks up. The switch have conf register 0x2101, and message "System returned to ROM by RPR Switchover" in the show version.

When i execute "sh run" i can see:

Current configuration : 47341 bytes


! No configuration change since last restart


And the configurations that i had carried out on that day disappeared

Cisco Internetwork Operating System Software

IOS (tm) Catalyst 4000 L3 Switch Software (cat4000-I9K91S-M), Version 12.2(18)EW2, RELEASE SOFTWARE (fc1)

Technical Support:

Copyright (c) 1986-2004 by cisco Systems, Inc.

Compiled Mon 01-Nov-04 16:20 by kellythw

Image text-base: 0x00000000, data-base: 0x011756EC

ROM: 12.2(20r)EW1

Dagobah Revision 90, Swamp Revision 29

router uptime is 18 weeks, 19 hours, 23 minutes

System returned to ROM by RPR Switchover

System restarted at 08:26:01 GMT-4 Thu Dec 11 2008

System image file is "bootflash:"

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 local laws, return this product immediately.

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

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

cisco WS-C4507R (MPC8245) processor (revision 7) with 524288K bytes of memory.

Processor board ID FOX08460462

Last reset from Reload

28 Virtual Ethernet/IEEE 802.3 interface(s)

106 Gigabit Ethernet/IEEE 802.3 interface(s)

403K bytes of non-volatile configuration memory.

Configuration register is 0x2101

New Member

Re: Problem With Switch 4507


Any answer o comment about this?

Re: Problem With Switch 4507


The config-register should be 0X2102



New Member

Re: Problem With Switch 4507

I want to do upgrade of IOS in the Switch,

using the cards active and standby.

It is possible to do that, so without losing the network service.

The switch have 12.2(18)EW version, and it not support

"In Service Software Upgrade Process" ISSU.

I will change Configuration of the register to 0X2102.I think

that the conf register 0X2101 was configurated

by any troubleshooting, and let so by forgot

Reviewing the configuration of the router i could saw

the following message, the hour 06:33:06 is just when happen

the problem.

That message say that now active engine is 1, and

engine 2 was active before the problem?

router#sh redundancy switchover history

Index Previous Current Switchover Switchover

active active reason time

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

1 2 1 active unit failed 06:33:06 GMT-4 Mon Apr 13 2009