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Checking the Software Version Number and the Installed Interfaces
To determine the current version of the Cisco IOS software running on your router, issue
the show version command at the user EXEC prompt (
This command causes the Cisco IOS version number to be displayed, as well as other
information, including the hardware installed in the system, the names and sources of
system image files, and the contents of the software configuration register.
A typical sample display resulting from the issuance of the show version command
follows:
Router>show version
Cisco Internetwork Operating System Software
IOS (tm) GS Software (GSR-P-MZ), Released Version 11.2(8)GS [biff-
bfr_112]
Copyright (c) 1986-1997 by Cisco Systems, Inc.
Compiled Mon 25-Aug-97 20:13 by biff
Image text-base: 0x60010900, data-base: 0x604FE000
ROM: System Bootstrap, Version 11.2(8)GS [biff-bfr_112], RELEASED
SOFTWARE
BOOTFLASH: GS Software (GSR-BOOT-M), Released Version 11.2(8)GS [biff-
bfr_112 1913]
Router uptime is 20 days, 12 hours, 16 minutes
System restarted by reload
System image file is "biff/gsr-p-mz", booted via tftp from 1.1.1.254
Cisco 12008/GRP (R5000) processor (revision 0x00) with 65536K bytes of
memory.
Processor board ID 00000000
R5000 processor, Implementation 35, Revision 2.1 (512KB Level 2 Cache)
Last reset from power-on
1 clock scheduler card(s)
3 switch fabric card(s)
1 Single-port OC12c ATM controller (1 ATM).
1 four-port OC3 POS controller (4 POS).
1 Ethernet/IEEE 802.3 interface(s)
1 ATM network interface(s)
4 Packet over Sonet network interface(s)
507K bytes of non-volatile configuration memory.
Observing System Startup and Performing a Basic Configuration 4-25
Configuring the Cisco 12008
).
Router>
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Troubleshooting
