Cisco Systems 12000 series Factory-default setting for the configuration register is, CF-925

show version

Table 146 show version Field Descriptions (continued)

Field	Description
	For more details on memory requirements, see the document “How
	to Choose a Cisco IOS® Software Release” on Cisco.com.
Configuration register is value	Shows the current configured hex value of the software
For example:	configuration register. If the value has been changed with the
	config-registercommand, the register value that will be used at the
Configuration register is 0x2142
	next reload is displayed in parenthesis.
(will be 0x2102 at next reload)	The boot field (final digit) of the software configuration register
	dictates what the system will do after a reset.
	For example, when the boot field of the software configuration
	register is set to 00 (for example, 0x0), and you press the NMI
	button on a Performance Route Processor (PRP), the user-interface
	remains at the ROM monitor prompt (rommon>) and waits for a
	user command to boot the system manually. But if the boot field is
	set to 01 (for example, 0x1), the system automatically boots the first
	Cisco IOS image found in the onboard Flash memory SIMM on the
	PRP.
	The factory-default setting for the configuration register is 0x2102.
	This value indicates that the router will attempt to load a Cisco IOS
	software image from Flash memory and load the startup
	configuration file.

Catalyst 6500 Series Switches and Cisco 7600 Series Routers

This example shows how to display the configuration of the system hardware, the software version, the names and sources of configuration files, and the boot images:

Router# show version

Cisco Internetwork Operating System Software

IOS (tm) c6sup2_rp Software (c6sup2_rp-JSV-M), Version 12.1 (nightly.E020626) NIG

HTLY BUILD

Copyright (c) 1986-2002 by cisco Systems, Inc.

Compiled Wed 26-Jun-02 06:20 by

Image text-base: 0x40008BF0, data-base: 0x419BA000

ROM: System Bootstrap, Version 12.1(11r)E1, RELEASE SOFTWARE (fc1)

Router uptime is 2 weeks, 8 hours, 48 minutes

Time since Router switched to active is 1 minute

System returned to ROM by power-on (SP by power-on)

System image file is "sup-bootflash:c6sup22-jsv-mz"

cisco Catalyst 6000 (R7000) processor with 112640K/18432K bytes of memory. Processor board ID SAD06210067

R7000 CPU at 300Mhz, Implementation 39, Rev 3.3, 256KB L2, 1024KB L3 Cache Last reset from power-on

Bridging software.

X.25 software, Version 3.0.0.

SuperLAT software (copyright 1990 by Meridian Technology Corp). TN3270 Emulation software.

3 Virtual Ethernet/IEEE 802.3 interface(s)

48 FastEthernet/IEEE 802.3 interface(s)

381K bytes of non-volatile configuration memory.

16384K bytes of Flash internal SIMM (Sector size 512K).

	Cisco IOS Configuration Fundamentals Command Reference
July 2008		CF-925