Hello Ambivert,
if the switch is in Native IOS mode (likely) you just need to create the SVI interfaces using
config t
interface Vlan X
ip address A.B.C.D 255.255.255.E
! you need to enable it
no shut
do the same for Vlan Y
verify that ip routing is enabled in global configuration mode.
where X is the vlan number
The Layer 2 Vlan X must exist and at least one L2 port either access port or trunk port has to be in STP forwarding state for Vlan X
(this is called MSFC autostate).
If the switch is an older C6500 in hybrid mode you need first to access the MSFC using
session 15 from supervisor console OR telnet to already defined and active IP address on the MSFC.
then after you get access to the MSFC CLI you use the same commands as above to create the layer 3 interface SVI Vlan X.
You can check the state of the created interface with
show ip interface brief
it has to be up up to be operational
Edit:
you have 7613 that is in Native IOS mode.
Hope to help
Giuseppe
