Cisco 2650 (non-XM) with 12.4T (XM IOS)

scline

n00b
Joined
Dec 20, 2011
Messages
33
Hello, I have a rather large Cisco Lab and 3 of the routers I have are Cisco 2650s. Well they are only able to take the IOS version 12.4M and 12.4T is only compatible with the XM series.

So I was thinking what would happen if I threw the 12.4T on the device, well I was surprised but it boots and functions with that image. So here is the question, is this usable in a LAB environment (CCNA/CCNP studies ect) the thing that would worries me is the memory. It is recommended the 12.4T IOS has (I think) 196D/48F. Well the 2650 non-xm only supports 128D/32F. The IOS fits on the 32 Flash (with 300k to spare) though what issues can/will i see in the future?

If its ok to have 12.4T on this it would save me on upgrading them in the future (^.^)

Code:
Cisco IOS Software, C2600 Software (C2600-ADVENTERPRISEK9-M), Version 12.4(9)T2, RELEASE SOFTWARE (fc4)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Sat 18-Nov-06 14:32 by prod_rel_team

ROM: System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)

Router uptime is 2 days, 2 hours, 53 minutes
System returned to ROM by reload
System image file is "flash:c2600-adventerprisek9-mz.124-9.T2.bin"


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Cisco 2650 (MPC860P) processor (revision 2.0) with 127524K/3548K bytes of memory.
Processor board ID JAB05310D2F
M860 processor: part number 5, mask 2
1 FastEthernet interface
4 Low-speed serial(sync/async) interfaces
32K bytes of NVRAM.
32768K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102
 
Last edited:
I forget but I think the increase RAM is needed for Cisco Call Manager Express along with the extra Flash needed. So if you don't run those I think you are good.
 
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