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

Odd NM-1FE-TX Behavior

I have an NM-1FE module that I just installed in a 3640 that displays green LEDs for EN (so it passed its self test), 100Mb + Link... so everything "appears" to be normal. However, when performing a show int, show run, show controllers, etc... there is absolutely no Fast Ethernet present.

It's receiving power, passing its self-test, and even detecting keepalives on the link...

What else can I do? (other than getting a new NM-1FE-TX :)

Thanks for your time!

Cisco Employee

Re: Odd NM-1FE-TX Behavior

What software is your 3640 running? Probably NM-1FE-TX is not supported in the release. Paste the output of sh ver. Also you can use the hardware/software advisor

Community Member

Re: Odd NM-1FE-TX Behavior

Thank you so much for your reply!

I did the software/hardware intersection and found both my NM-1FE-TX and NM-2FE2W are supported... just the NM-2FE2W Fast Ethernet device show up:

Cisco Internetwork Operating System Software

IOS (tm) 3600 Software (C3640-IS-M), Version 12.2(7c), RELEASE SOFTWARE (fc1)

Copyright (c) 1986-2002 by cisco Systems, Inc.

Compiled Sat 11-May-02 00:37 by pwade

Image text-base: 0x600089A8, data-base: 0x611B4000

ROM: System Bootstrap, Version 11.1(20)AA2, EARLY DEPLOYMENT RELEASE SOFTWARE (f


3640 uptime is 0 minutes

System returned to ROM by reload

System image file is "flash:c3640-is-mz.122-7c.bin"

cisco 3640 (R4700) processor (revision 0x00) with 98304K/32768K bytes of memory.

Processor board ID 26427606

R4700 CPU at 100Mhz, Implementation 33, Rev 1.0

Bridging software.

X.25 software, Version 3.0.0.

SuperLAT software (copyright 1990 by Meridian Technology Corp).

2 FastEthernet/IEEE 802.3 interface(s)

2 Serial(sync/async) network interface(s)

1 ATM network interface(s)

DRAM configuration is 64 bits wide with parity disabled.

125K bytes of non-volatile configuration memory.

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

Configuration register is 0x2102

The strange thing is that the 'EN' LED is lit... I have seen dead modules before and they don't light at all... plus, I get links LEDs when I connect the TX to a live port... When all modules but the NM-1FE-TX are removed, it still doesn't function...

Thanks again!

Cisco Employee

Re: Odd NM-1FE-TX Behavior

Try a different bay..If you still have the issue, I would suspect a bad card and would open a TAC case

CreatePlease to create content