Command Reference

show version

To display the configuration of the system hardware, the software version, the names and sources of configuration files, and the boot images, use the show version EXEC command.
show version

Syntax Description

This command has no arguments or keywords.

Command Mode

EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

You can also use this command with a Cisco 7507 or Cisco 7513 configured with High System Availability (HSA). HSA refers to how quickly your router returns to an operational status after a failure occurs. On the Cisco 7507 and Cisco 7513, you can install two RSP cards in a single router to improve system availability.

When used with HSA, this command also displays the currently running slave RSP card and the Cisco IOS release that it is running.

Sample Display

The following is sample output from the show version command on a Cisco 7500 series router with an RSP2 and three VIP2s with a variety of interfaces.
Router# show version
Cisco Internetwork Operating System Software
IOS (tm) GS Software (RSP-JV-M), Experimental Version 11.1(12816)
[getchell 108]
Copyright (c) 1986-1996 by cisco Systems, Inc.
Compiled Mon 03-Jun-96 11:39 by getchell
Image text-base: 0x600108A0, data-base: 0x60910000
ROM: System Bootstrap, Version 5.3(16645) [szhang 571], INTERIM SOFTWARE
Router uptime is 4 minutes
System restarted by reload
System image file is "slot0:dirt/vip2/master/rsp-jv-mz.960603", booted via tftp from 172.18.2.3
cisco RSP2 (R4600) processor with 24576K bytes of memory.
R4600 processor, Implementation 32, Revision 2.0
Last reset from power-on
G.703/E1 software, Version 1.0.
SuperLAT software copyright 1990 by Meridian Technology Corp).
Bridging software.
X.25 software, Version 2.0, NET2, BFE and GOSIP compliant.
TN3270 Emulation software (copyright 1994 by TGV Inc).
Primary Rate ISDN software, Version 1.0.
Chassis Interface.
1 CIP controller (3 IBM Channels).
1 CIP2 controller (3 IBM Channels).
1 EIP controller (6 Ethernet).
1 HIP controller (1 HSSI).
1 FSIP controller (8 Serial).
1 AIP controller (1 ATM).
1 TRIP controller (4 Token Ring).
1 FIP controller (1 FDDI).
1 MIP controller (2 T1).
3 VIP2 controllers (1 FastEthernet)(13 Ethernet)(4 Serial)(4 Token Ring)(1
Fddi).
1 FEIP controller (1 FastEthernet).
19 Ethernet/IEEE 802.3 interfaces.
2 FastEthernet/IEEE 802.3 interfaces.
8 Token Ring/IEEE 802.5 interfaces.
12 Serial network interfaces.
1 HSSI network interface.
2 FDDI network interfaces.
1 ATM network interface.
2 Channelized T1/PRI ports.
125K bytes of non-volatile configuration memory.
8192K bytes of Flash PCMCIA card at slot 0 (Sector size 128K).
8192K bytes of Flash PCMCIA card at slot 1 (Sector size 128K).
8192K bytes of Flash internal SIMM (Sector size 256K).
No slave installed in slot 7.
Configuration register is 0x0
  
Table 16 describes the fields in this display for Cisco 7500 series routers with an RSP2 route switch processor.

Table 16: Show Version Field Descriptions on Cisco 7500 Series Routers
Field Description

IOS (tm) GS Software, Version 11.1 Always specify the complete version number when reporting a possible software problem. In the example output, the version number is 11.1.

ROM: System Bootstrap, Version 5.3(16645) [szhang 571], INTERIM SOFTWARE Bootstrap version string.

Router uptime is...
System restarted by...

System image file is...
The amount of time the system has been up and running, how the system was restarted, and the name of the system image file.

System last reset by Also displayed is a log of how the system was last booted, both as a result of normal system startup and of system error. For example, information can be displayed to indicate a bus error that is generally the result of an attempt to access a nonexistent address, as follows:
System restarted by bus error at PC 0xC4CA, address 0x210C0C0

G.703/E1 software...
SuperLAT software...

Bridging software.

X.25 software...

TN3270 Emulation software...

Primary Rate ISDN software...
Software currently running.

cisco RSP2 (R4600) processor... The remaining output in each display shows the hardware configuration and any nonstandard software options. The configuration register contents are displayed in hexadecimal notation.

The following is sample output from the show version command from a Cisco 7000 series:
Router> show version
GS Software (GS7), Version 10.0
Copyright (c) 1986-1993 by cisco Systems, Inc.
Compiled Mon 11-Jan-93 14:44
System Bootstrap, Version 4.6(1)
Current date and time is Fri 2-26-1993 2:18:52
Boot date and time is Fri 1-29-1993 11:42:38
Router uptime is 3 weeks, 6 days, 14 hours, 36 minutes
System restarted by power-on
Running default software
Network configuration file is "Router", booted via tftp from 172.16.2.333
RP1 (68040) processor with 16384K bytes of memory.
X.25 software.
Bridging software.
1 CIP controller (3 IBM Channels).
1 CIP2 controller (3 IBM Channels).
1 Switch Processor.
1 TRIP controller (4 Token Ring).
4 Token Ring/IEEE 802.5 interface.
1 AIP controller (1(ATM)
1 ATM network interface
4096K bytes of flash memory on embedded flash (in RP1).
Configuration register is 0x0
  
Table 17 describes significant fields shown in these displays.

Table 17: Show Version Field Descriptions
Field Description

GS Software (GS7), Version 10.0 Always specify the complete version number when reporting a possible software problem. In the example output, the version number is 10.0.

System Bootstrap, Version Bootstrap version string.

Current date and time
Boot date and time

Router uptime is
Current date and time, the date and time the system was last booted, and uptime, or the amount of time the system has been up and running.

System restarted by power-on Also displayed is a log of how the system was last booted, both as a result of normal system startup and of system error. For example, information can be displayed to indicate a bus error that is generally the result of an attempt to access a nonexistent address, as follows:
System restarted by bus error at PC 0xC4CA, address 0x210C0C0

Running default software If the software was booted over the network, the Internet address of the boot host is shown. If the software was loaded from onboard ROM, this line reads "running default software." In addition, the names and sources of the host and network configuration files are shown.

RP1.... The remaining output in each display shows the hardware configuration and any nonstandard software options. The configuration register contents are displayed in hexadecimal notation.

The output of the show version EXEC command can also provide certain messages, such as bus error messages. If such error messages appear, report the complete text of this message to your technical support specialist.

The following is sample output of the show version command from a Cisco 7513. In this example, the current slave is processor slot 7.
Router# show version
Cisco Internetwork Operating System Software 
IOS (tm) GS Software (RSP-P-M), Experimental Version 11.1(5479) [dbath 119]
Copyright (c) 1986-1995 by cisco Systems, Inc.
Compiled Wed 08-Nov-95 17:51 by dbath
Image text-base: 0x600088A0, data-base: 0x603B6000
ROM: System Bootstrap, Version 5.3(18168) [mansonw 63], INTERIM SOFTWARE
Router uptime is 4 days, 31 minutes
System restarted by reload
System image file is "slot0:dirt/dbath/rsp-p-mz-ark-1", booted via tftp from 172.31.7.19
cisco RSP2 (R4600) processor with 16384K bytes of memory.
R4600 processor, Implementation 32, Revision 2.0 
Last reset from power-on
G.703/E1 software, Version 1.0.
Primary Rate ISDN software, Version 1.0.
Chassis Interface.
1 CIP controller (3 IBM Channels).
1 CIP2 controller (3 IBM Channels).
1 EIP controller (6 Ethernet).
1 FSIP controller (8 Serial).
1 AIP controller (1 ATM).
1 TRIP controller (4 Token Ring).
1 FIP controller (1 FDDI).
1 MIP controller (2 T1).
6 Ethernet/IEEE 802.3 interfaces.
4 Token Ring/IEEE 802.5 interfaces.
8 Serial network interfaces.
1 FDDI network interface.
1 ATM network interface.
2 Channelized T1/PRI ports.
125K bytes of non-volatile configuration memory.
8192K bytes of Flash PCMCIA card at slot 0 (Sector size 128K).
8192K bytes of Flash internal SIMM (Sector size 256K).
Slave in slot 7 is running Cisco Internetwork Operating System Software 
IOS (tm) GS Software (RSP-DW-M), Experimental Version 11.1(5479) [dbath 118]
Copyright (c) 1986-1995 by cisco Systems, Inc.
Compiled Wed 08-Nov-95 16:57 by dbath
Configuration register is 0x0
  
Related Command

reload

Field	Description
IOS (tm) GS Software, Version 11.1	Always specify the complete version number when reporting a possible software problem. In the example output, the version number is 11.1.
ROM: System Bootstrap, Version 5.3(16645) [szhang 571], INTERIM SOFTWARE	Bootstrap version string.
Router uptime is... System restarted by... System image file is...	The amount of time the system has been up and running, how the system was restarted, and the name of the system image file.
System last reset by	Also displayed is a log of how the system was last booted, both as a result of normal system startup and of system error. For example, information can be displayed to indicate a bus error that is generally the result of an attempt to access a nonexistent address, as follows: System restarted by bus error at PC 0xC4CA, address 0x210C0C0
G.703/E1 software... SuperLAT software... Bridging software. X.25 software... TN3270 Emulation software... Primary Rate ISDN software...	Software currently running.
cisco RSP2 (R4600) processor...	The remaining output in each display shows the hardware configuration and any nonstandard software options. The configuration register contents are displayed in hexadecimal notation.

Field	Description
GS Software (GS7), Version 10.0	Always specify the complete version number when reporting a possible software problem. In the example output, the version number is 10.0.
System Bootstrap, Version	Bootstrap version string.
Current date and time Boot date and time Router uptime is	Current date and time, the date and time the system was last booted, and uptime, or the amount of time the system has been up and running.
System restarted by power-on	Also displayed is a log of how the system was last booted, both as a result of normal system startup and of system error. For example, information can be displayed to indicate a bus error that is generally the result of an attempt to access a nonexistent address, as follows: System restarted by bus error at PC 0xC4CA, address 0x210C0C0
Running default software	If the software was booted over the network, the Internet address of the boot host is shown. If the software was loaded from onboard ROM, this line reads "running default software." In addition, the names and sources of the host and network configuration files are shown.
RP1....	The remaining output in each display shows the hardware configuration and any nonstandard software options. The configuration register contents are displayed in hexadecimal notation.