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Ask the Expert- SD-WAN

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Enthusiast

Latest IOS for Catalyst 3550 series

Hello everyone,

I've noticed that 12.2.44-SE6 is listed as the latest available IOS for any Catalyst 3550 except 24 DC SMI (12.2.55-SE8 available for that one).  Does this mean that nothing after 12.2.44-SE6 won't work properly (or at all) on most C3550 models?  I'm asking this because I've just come across a C3550-12T in our network running 12.2.52-SE (apparently without issues - weeks of uptime)...

Thank you.

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Hall of Fame Mentor

Latest IOS for Catalyst 3550 series

Anything over 44SE6 was not tested on 3550 switches. If you load it, it will run on your own risk.

VIP Expert

Latest IOS for Catalyst 3550 series

The latest image on CCO for 3550-12T is c3550-ipbase-mz.122-44.SE6.bin

I would not put an image on a device that is not on CCO and probably not supported.

HTH

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