Hi Nikhil,
I think solution is to use dynamic routing protocol with ecmp as i mentioned above.
MPLS is not supported on Ex 4x00 series switches.
IPsec over ospfv3 is supported only on ex series.
pl note following link.
https://apps.juniper.net/feature-explorer/feature-info.html?fKey=1179&fn=IP+Security+(IPSec)+authentication+for+OSPFv3
I think solution is to use dynamic routing protocol with ecmp as i mentioned above.
MPLS is not supported on Ex 4x00 series switches.
IPsec over ospfv3 is supported only on ex series.
pl note following link.
https://apps.juniper.net/feature-explorer/feature-info.html?fKey=1179&fn=IP+Security+(IPSec)+authentication+for+OSPFv3