Though the model you are having is SMI but the image which you are running is EMI image which is possible if you upgrade your SMi switch with EMI lisence and that is the reason it supports OSPF.
If you check your image it is "c3550-i5q" so check the number "5" which states its an EMI image.
Check these lines from 3550 release notes
"You can use the show version privileged EXEC command to see the software version that is running on your switch. The second line displays C3550-I5Q3L2 for the enhanced multilayer software image (EMI) or C3550-I9Q3L2 for the standard multilayer software image (SMI)."
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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