i don't know what went worng but i was unable to ping across DC with mtu of 1500 .
herer is the toplogy below
from PC1 if try to ping packet size of 1500 with DF bit i am unable to do so.
i have enabled MTU 9216 in policy map class-default
system jumbo mtu
under each interface coming in the path MTU 9216
still no luck
can someone please let me know where things went wrong here..