Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

Cisco 3660 'show diag' doesn't show NMs


I've got a Cisco 3660 which doesn't show installed NMs when 'show diag' is issued. It has a NM-1FE2W & a NM-4T installed.

sh diag, sh diag 0, sh diag 1 & sh diag 2 all show the same thing.

sh diag:

3660 Chassis type: ENTERPRISE

3660 Backplane EEPROM:

Hardware Revision : 1.0

Top Assy. Part Number : 800-04740-02

Board Revision : C0

Deviation Number : 0-0

Fab Version : 02

PCB Serial Number : HAD06311026

RMA Test History : 00

RMA Number : 0-0-0-0

RMA History : 00

Chassis Serial Number : JHY0636K4SX

Chassis MAC Address : 000a.415b.2680

MAC Address block size : 112

Manufacturing Test Data : 00 00 00 00 00 00 00 00

Fab Part Number : 28-2651-02

Number of Slots : 6

EEPROM format version 4

EEPROM contents (hex):

0x00: 04 FF 40 00 C8 41 01 00 C0 46 03 20 00 12 84 02

0x10: 42 43 30 80 00 00 00 00 02 02 C1 8B 48 41 44 30

Any thoughts?


PS - show ver:

Cisco IOS Software, 3600 Software (C3660-IS-M), Version 12.4(13), RELEASE SOFTWARE (fc1)

Technical Support:

Copyright (c) 1986-2007 by Cisco Systems, Inc.

Compiled Thu 22-Feb-07 20:41 by prod_rel_team

ROM: System Bootstrap, Version 12.0(6r)T, RELEASE SOFTWARE (fc1)

C3660 uptime is 0 minutes

System returned to ROM by reload

System image file is "flash:c3660-is-mz.124-13.bin"

Cisco 3660 (R527x) processor (revision 1.0) with 251904K/10240K bytes of memory.

Processor board ID JHY0636K4SX

R527x CPU at 225MHz, Implementation 40, Rev 10.0, 2048KB L2 Cache

3660 Chassis type: ENTERPRISE

2 FastEthernet interfaces

4 Serial interfaces

DRAM configuration is 64 bits wide with parity disabled.

125K bytes of NVRAM.

32768K bytes of processor board System flash (Read/Write)


Re: Cisco 3660 'show diag' doesn't show NMs

Hi Geoff,

Are these NM's working?

If so, are you able to see them if you type "show inventory" instead?

If not, do you have another router you could try them in, to test whether the NM cards are faulty?

Hope this helps


New Member

Re: Cisco 3660 'show diag' doesn't show NMs

#sh inventory

NAME: "3660 chassis", DESCR: "3660 chassis"

PID: , VID: 1.0, SN: JHY0636K4SX

NAME: "c3660 Motherboard with Fast Ethernet", DESCR: "c3660 Motherboard with Fast Ethernet"

PID: Leopard-1FE , VID: , SN: JAD06310CNA


PID: TDMSlot , VID: , SN:

NAME: "FastEthernet/WAN", DESCR: "FastEthernet/WAN"

PID: NM-1FE2W= , VID: 1.0, SN: JAD060701A9

NAME: "Four Port High-Speed Serial", DESCR: "Four Port High-Speed Serial"

PID: NM-4T= , VID: 1.1, SN: 21412612

The cards are working fine and there's nothing odd with the router as far as I can see, except for sh diag.

Re: Cisco 3660 'show diag' doesn't show NMs

Since you are running a very recent code, can you try sh inventory to see whether it shows up something