Create redundant WAN router

[Amafsha1]

Hello, in the topology that I have attached, we currently have a WAN router model # ISR4451-X/K9 that is our way out to the MPLS cloud that we pay for.  We have BGP configured on the WAN Router to neighbor with our Service Provider.  The WAN router has routed links to our 2 nexus cores.  We are trying to figure out a way to not have a single point of failure; if the wan-router dies, we lose our connectivity to our other branches via the MPLS that we have.  What are some suggestions to make this more redundant?

[Joseph W. Doherty]

"I only want to do inter-vlan routing on the Access switches with SVIs, and routing on the Internal Routers with sub-interfaces."

Starting with statement, I've not clear what and why you're doing what you've shown in your attachment.

If you have L3 switches, i.e. switches that can route, why do you have a need for your LAN routers?

As to connecting devices to FWs, much depends on the capability of the FW. (It appears you're using an ASA, but I have very, very little experience with ASAs.) Some FWs can route, statically and sometimes dynamically. Some FWs support multiple ports, so you can connect them to other network devices, in parallel.

[CiscoBrownBelt]

Hi I have similar situation. Looks like you have routed interfaces from your Core switches to you router. How do you have the interfaces on the router that connect to the switches configured?