I have a confusion as below :-
If I can create VLAN 2-10 in Distribution_1 and Distribution_2, HSRP will be implemented on these both. Again VLAN 10-20 will be created in Distribution_3 and Distribution_4, HSRP will be implemented on these both. I want all these Distribution switch should be in same VTP domain and VTP mode will be Server for All.
Now, from all the Distribution switch default route will be pointed to Core_1, and the same delafult route will be pointed to Core_2 & Core_3 also along with weighted value, eg as given below:-
From all the Distribution switch the 2no.s default route will be like
ip route 0.0.0.0 0.0.0.0 Core_1
ip route 0.0.0.0 0.0.0.0 Core_2 10
ip route 0.0.0.0 0.0.0.0 Core_3 20
If Core_1 down traffic will move to Core_1 then Core_2 and lastly Core_3. Again all the traffic will come back to Coer_1 when this switch come up. These Core switches also in the same VTP domain with VTP server mode.
Please let me know if it is possible. The Core_3 will be actually a DR site for the exiting DC in the other building near by primary building will be connecetd with Fiber Optic.