"guys can someone please tell me the diff between the following class-map

class-map KK

match ip precedence 3

class-map KK

match precedence 3

is it same or it different whats the logic behind these two command"

Don't believe there's a functional difference, although I recall the syntax changed between different IOS versions. Also recall the later IOS might accept either syntax. As to their logic, both will match against IP packets with IP Precedence 3.

"what the difference

class-map match-all KK

class-map match-any "

-all makes for an "and" condition if there are multiple match statements within the class-map. I.e. class match will be true only if all match statements true

-any makes for an "or" condition if there are multiple match statements within the class-may. I.e. class match will be true if any match statement true