Howto determine serial numbers for cisco router and Catalyst switch

For Cisco Routers

If you want to know the chassis serial number for your router use the following command

Router> sh inventory

Output

NAME: “2821 chassis”, DESCR: “2821 chassis”PID: CISCO2821  , VID: V04 , SN: FCZ10231VG

NAME: “WAN Interface Card – Serial 2T”, DESCR: “WAN Interface Card – Serial 2T”PID: WIC-2T   , VID: V01, SN: 32387748

Cisco Catalyst 6500/6000 users

Catalyst 6500/6000 switches can run CatOS system software on the Supervisor Engine and Cisco IOS Software on the MSFC. Or, the switches can run Cisco IOS System Software, with a software bundle for both the Supervisor Engine and MSFC.

For CatOS Users

Use the show version command to determine the serial number of various hardware components

In order to find the serial number of port adapters that plug into the Flex WAN module, issue the show diagbus command from the MSFC command-line interface (CLI).

If the power supply serial number is not visible in the show version command output, issue the show sprom powersupply {1 | 2} command.

Cisco IOS System Software

In order to determine the serial number for the chassis and other components, issue the show idprom command, as this example shows:

6509#show idprom ?

all           selects all FRU-types
backplane     specify backplane
clock         specify clock <number>
earl          specify earl <slot>
fan-tray      specify fan-tray <number>
interface     interface name
module        specify module <slot>
power-supply  specify power-supply <number>
rp            specify RP (MSFC) <slot>
supervisor    specify supervisor <slot>
vtt           specify VTT <number>