[c-nsp] 2900 series switches loosing ports

[McLean Pickett]

Hello -

I have a couple of old 2924-xl switches that are having ports fail. Show
version says that they have 19 and 20 fast ethernet interfaces
respectively (instead of 24). Looking at the front LED's on the units
there are 5 and 4 interfaces with an amber status light. Devices
connected to these ports are never seen by the switch.

I am OK with the idea that some ports are failing, but I would like to
find a way to conclusively identify which ports have failed without have
to physically look at the switches. 

I can find any commands that will tell me that the ports have failed.
Any ideas?

Thanks,
McLean

switch1#sh ver
Cisco Internetwork Operating System Software
IOS (tm) C2900XL Software (C2900XL-C3H2S-M), Version 12.0(5)WC2, RELEASE
SOFTWAR
E (fc1)
Copyright (c) 1986-2001 by cisco Systems, Inc.
Compiled Tue 23-Oct-01 11:56 by devgoyal
Image text-base: 0x00003000, data-base: 0x00338B44

ROM: Bootstrap program is C2900XL boot loader

cisco WS-C2924-XL (PowerPC403GA) processor (revision 0x11) with
8192K/1024K byte
s of memory.
Processor board ID FAB0410R0UF, with hardware revision 0x01
Last reset from power-on

Processor is running Enterprise Edition Software
Cluster command switch capable
Cluster member switch capable
19 FastEthernet/IEEE 802.3 interface(s) <- nice!

switch2#sh ver
Cisco Internetwork Operating System Software
IOS (tm) C2900XL Software (C2900XL-C3H2S-M), Version 12.0(5)WC2, RELEASE
SOFTWAR
E (fc1)
Copyright (c) 1986-2001 by cisco Systems, Inc.
Compiled Tue 23-Oct-01 11:56 by devgoyal
Image text-base: 0x00003000, data-base: 0x00338B44

ROM: Bootstrap program is C2900XL boot loader

cisco WS-C2924-XL (PowerPC403GA) processor (revision 0x11) with
8192K/1024K byte
s of memory.
Processor board ID FAB0410R0UM, with hardware revision 0x01
Last reset from power-on

Processor is running Enterprise Edition Software
Cluster command switch capable
Cluster member switch capable
20 FastEthernet/IEEE 802.3 interface(s) <- me too!