I have a CISCO switch that I would like to set up monitoring.  I have done this on other CISCO switches -- some of the commands are not available.  For example -- MONITOR is not available?  I am attaching a sh ver in hopes that is will help

ComputerRoom_2950#sh ver
Cisco Internetwork Operating System Software
IOS (tm) C2950 Software (C2950-C3H2S-M), Version 12.0(5.3)WC(1), MAINTENANCE INTERIM SOFTWARE
Copyright (c) 1986-2001 by cisco Systems, Inc.
Compiled Mon 30-Apr-01 07:56 by devgoyal
Image text-base: 0x80010000, data-base: 0x8031A000

ROM: Bootstrap program is CALHOUN boot loader

ComputerRoom_2950 uptime is 24 weeks, 2 days, 19 hours, 19 minutes
System returned to ROM by power-on
System image file is "flash:c2950-c3h2s-mz.120-5.3.WC.1.bin"

cisco WS-C2950C-24 (RC32300) processor (revision B0) with 22260K bytes of memory.
Processor board ID FAB0528Q1L4
Last reset from system-reset

Processor is running Enterprise Edition Software
Cluster command switch capable
Cluster member switch capable
26 FastEthernet/IEEE 802.3 interface(s)
32K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address: 00:06:52:C0:5C:40
Motherboard assembly number: 73-5750-08
Power supply part number: 34-0965-01
Model revision number: B0
Model number: WS-C2950C-24
System serial number: FAB0528Q1L4
Configuration register is 0xF
Who is Participating?
I found this:  Note: The above commands are not supported on Catalyst 2950 with Cisco IOS Software Release 12.0(5.2)WC(1) and with any software earlier than Cisco IOS Software Release 12.1(6)EA2. To configure SPAN on a Catalyst 2950 with software earlier than Cisco IOS Software Release 12.1(6)EA2, refer to the Enabling Switch Port Analyzer section of this document:  -

So, go here:

And click on the "Enabling Switch Port Analyzer".
That work for you?  Thanks!
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