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IOS upgrade in 3550 switch

Manish Sehrawat
Level 1
Level 1

Hi all,

I am running multiple cisco 3550 24 -SMI switches in my network . Now as per cisco this is the latest IOS image(c3550-ipservicesk9-mz.122-44.SE6)  for this product and Security guy did Vulnerability assessment on the switches and found that this IOS is vulnerable and should be upgraded to above 12.2 (44). I found another IOS above 12.2(44) which is 12.2 (55) but it is for 3550 24 DC SMI .

my question is, if I upgrade 12.2 (55) IOS to 3550 24 SMI switch, will it work or not ? I have seen in access point if ios is in same series then it works for multiple models, I am not sure if it works for switches as well.

I would appreciate if some helps me. thanks in advance.

1 Reply 1

Joe Clarke
Cisco Employee
Cisco Employee

I have personally done this on one of my lab 3550s, and it does work.  However, it is not supported, and you will not be able to get TAC help if you put this image on a 3550 that is not a 3550 24 DC SMI.

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