Recommended IOS versions for devices

[Tippey]

Hi, 

Just trying to find what the recommended lowest ios is acceptable to use for Cisco to still be in support for them.

the devices we have are the below, with their current versions:

CISCO1921/K9 - Version 15.4(3)M8

WS-C2960X-24TS-L - Version 15.0(2a)EX5 

WS-C2960S-24TD-L - Version 12.2(55)SE7 

Just wanting to make sure everything is in support and if its not get them upgraded to the correct levels.

Any help is appreciated as trying to find the information is a minefield it seems

[M02@rt37]

Hello @Tippey 

The recommended lowest ios for 1921: https://software.cisco.com/download/home/282977114/type/280805680/release/15.6.3M9

The recommended lowest ios for C2960X-24TS-L: https://software.cisco.com/download/home/284795737/type/280805680/release/15.2.7E9

The recommended lowest ios for C2960S-24TD-L:  https://software.cisco.com/download/home/282864094/type/280805680/release/15.2.2E9

[Leo Laohoo]

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@Tippey wrote:
WS-C2960X-24TS-L - Version 15.0(2a)EX5 

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I would not recommend making any IOS upgrades on 2960X. 

Counterfeit 2960X have been proliferating throughout the world and unless the units themselves were sourced by big distributors, there is no guarantee the 2960X is genuine or not.  

The counterfeiters were able to put legitimate serial numbers into the units so it makes it even difficult for customers to check without the unit being RMAed for analysis.