Switch#show version
Cisco Internetwork Operating System Software
IOS (tm) C3550 Software (C3550-I9Q3L2-M), Version 12.1(22)EA1a, RELEASE SOFTWARE                                                                                                              (fc1)
Copyright (c) 1986-2004 by cisco Systems, Inc.
Compiled Fri 20-Aug-04 00:30 by yenanh
Image text-base: 0x00003000, data-base: 0x006C5C6C

ROM: Bootstrap program is C3550 boot loader

Switch uptime is 2 minutes
System returned to ROM by power-on
System image file is "flash:c3550-i9q3l2-mz.121-22.EA1a.bin"

cisco WS-C3550-48 (PowerPC) processor (revision G0) with 65526K/8192K bytes of m                                                                                                             emory.
Processor board ID CAT0647X0FZ
Last reset from warm-reset
Running Layer2/3 Switching Image

Ethernet-controller 1 has 12 Fast Ethernet/IEEE 802.3 interfaces

Ethernet-controller 2 has 12 Fast Ethernet/IEEE 802.3 interfaces

Ethernet-controller 3 has 12 Fast Ethernet/IEEE 802.3 interfaces

Ethernet-controller 4 has 12 Fast Ethernet/IEEE 802.3 interfaces

Ethernet-controller 5 has 1 Gigabit Ethernet/IEEE 802.3 interface

Ethernet-controller 6 has 1 Gigabit Ethernet/IEEE 802.3 interface

48 FastEthernet/IEEE 802.3 interface(s)
2 Gigabit Ethernet/IEEE 802.3 interface(s)

The password-recovery mechanism is enabled.
384K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address: 00:0B:5F:B6:08:00
Motherboard assembly number: 73-5701-07
Power supply part number: 34-0967-01
Motherboard serial number: CAT064608B3
Power supply serial number: DCA06412KC5
Model revision number: G0
Motherboard revision number: A0
Model number: WS-C3550-48-SMI
System serial number: CAT0647X0FZ
Configuration register is 0x10F