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IOS naming format conversion

I have a question. Is there someplace that explaines or coorelates the older IOS format naming compared with the newer? I have an older catalyst 3550 that might need an IOS upgrade due to us starting to implement dot1x. The reason that I say this is that some of the commands in the dot1x config guide, such as aaa accounting dot1x, are not valid on this platform. The current IOS is c3550-i5q3l2-mz.121-8.EA1c but the newer format is the ipbase, ipservices, etc. format. There is a newer ios but how do I convert from one to the other? I think I need to research the IOS to see if the new commands are there as well as I want to make sure there are no gotchas from a hardware standpoint if I upgrade.

Cisco Internetwork Operating System Software
IOS (tm) C3550 Software (C3550-I5Q3L2-M), Version 12.1(8)EA1c, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2002 by cisco Systems, Inc.
Compiled Fri 15-Feb-02 10:50 by antonino
Image text-base: 0x00003000, data-base: 0x006675E0

ROM: Bootstrap program is C3550 boot loader

ACSTMElab-3550 uptime is 20 minutes
System returned to ROM by power-on
System image file is "flash:c3550-i5q3l2-mz.121-8.EA1c/c3550-i5q3l2-mz.121-8.EA1c.bin"

cisco WS-C3550-24 (PowerPC) processor (revision C0) with 65526K/8192K bytes of memory.
Processor board ID CHK0615V0BP
Last reset from warm-reset
Bridging software.
Running Layer2/3 Switching Image

Ethernet-controller 1 has 12 Fast Ethernet/IEEE 802.3 interfaces

Ethernet-controller 2 has 12 Fast Ethernet/IEEE 802.3 interfaces

Ethernet-controller 3 has 1 Gigabit Ethernet/IEEE 802.3 interface

Ethernet-controller 4 has 1 Gigabit Ethernet/IEEE 802.3 interface

24 FastEthernet/IEEE 802.3 interface(s)
2 Gigabit Ethernet/IEEE 802.3 interface(s)

The password-recovery mechanism is enabled.

Brent                   

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Cisco Employee

IOS naming format conversion

Brent,

Below is a quick table provided from the relase notes to explain the naming convention.

Cisco IOS 12.2(25)SEA and earlier
Cisco IOS 12.2(25)SEB and later

c3550-i9q3l2 (SMI)

c3550-ipbase-mz

c3550-i5q3l2-tar (EMI)

c3550-ipservices-mz

c3550-i9k91l2q3-tar (SMI)

c3550-ipbasek9-mz

c3550-i5k91l2q3-tar (EMI)

c3550-ipservicesk9-mz

TO detemine the feature  support you need, you can use the feature navigator tool located here:

http://tools.cisco.com/ITDIT/CFN/jsp/index.jsp

You can simplify your research by specifing the product.

Take Care,

Dale

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