Switch c2950 ios command support

Unanswered Question
Apr 6th, 2009

We r having c2950 switch and we want

to use mac address group command.

We have put ios c2950-i6q4l2-tar.121-22.EA13.bin.Still not getting mac access-group command.

Can any body help?


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Overall Rating: 5 (2 ratings)
Laurent Aubert Mon, 04/06/2009 - 06:53


This feature is available only on 2950 models which support the EI images:

Here are the EI models:

1. WS-C2950G-12-EI

2. WS-C2950G-24-EI

3. WS-C2950G-48-EI

4. WS-C2950G-24-EI-DC

5. WS-C2950T-24

6. WS-C2950C-24

Here are the SI models:

1. WS-C2950SX-48-SI

2. WS-C2950T-48-SI

3. WS-C2950SX-24

4. WS-C2950-24

5. WS-C2950-12



Leo Laohoo Mon, 04/06/2009 - 15:04

c2950-i6q4l2-tar.121-22.EA13.bin??? Are you sure this is the correct filename?

vaishali.nagpure Tue, 04/07/2009 - 03:54


I made a mistake.

I just want to know if right now my c2950 is having standard image is it possible to change it to enhanced image

Correct file name is c2950-i6q4l2-mz.121-22.EA13.bin


Sushil Kumar Katre Tue, 04/07/2009 - 04:14

Hi Vaishali,

On 2950 platform the switch model decides whether it's an SI switch or EI switch.

You can't upgrade from SI switch to EI switch.

Here's what the Q&A states -

Q. What is the difference between the Cisco Standard Image software and Cisco Enhanced Image software?

A. These two software image versions support different degrees of capability. The version of software depends solely on the model of switch selected, with no upgrade capabilities.


If you can let us know the switch model number or paste show version out put we can find which switch you have.

-> Sushil

Sushil Kumar Katre Tue, 04/07/2009 - 04:03

Hi Leo,

The file name looks fine apart from the fact that in the end it should be .tar instead of .bin if you are searching for this IOS in the download area. For some strange reason Feature Navigator is not able to search for this IOS.

Vaishali, as pointed out by Laurent (+5 pts), this feature is supported on the switches with Enhanced Image. Based on the list provided by Laurent you can figure out if the switch you have is SI or EI switch.

Unfortunately 2950 SI switches can not be upgraded to EI switches. So if you have one of the SI switches then you won't be able to have MAC ACLs supported on it.

-> Sushil

Leo Laohoo Tue, 04/07/2009 - 14:54

Hi Vaishali,

"I just want to know if right now my c2950 is having standard image is it possible to change it to enhanced image"

Do a "sh version" and look at below:

cisco WS-C2950SX-24 (RC32300) processor (revision L0) with 19912K bytes of memory.

Processor board ID XXXXXXXXXXX

Last reset from system-reset

Running Standard Image <<<<<<<<<<<<

24 FastEthernet/IEEE 802.3 interface(s)

2 Gigabit Ethernet/IEEE 802.3 interface(s)

Standard Image or Enhanced Image is based on your appliance.


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