Since you're looking for Data Center functionality in a "SAN" environment, this question should be posted onto the Data Center community.  3850s are meant to be access & aggregation switches.

Original question (Translation)- Since I activated my cisco 3825 to version c3825-advipservicesk9-mz.151-3.T4.bin, I typed in the command "Ip classless" and couldn't see it.  What do I need to activate additionally to view the command "ip classless"?...