@DarrenOC thanks for the document I had gone through the document. mysetup slighlty different here, like below.
we have 1 MPLS and 1 DIA circuit
Can MPLS connect WAN1(Internet-1) port of MX450 ? and DIA circuit can be connected in WAN2 ? is that failover works ?
because by default all remote sites should access Intranet services through MPLS link, if MPLS goes down it should failover to DIA circuits ?
is it workable solution and we need HA redundancy on MX450 also using any Layer-2 switch