He has internet and MPLS connectivity terminating on firewall.
For MPLS he wants to use bridge interfaces on gateway with Lan.
He wants to deploy a cluster with above configuration.
As long as the gateway won't see the same flow twice (once through the bridged interfaces, once through the routed interfaces), it should be ok.
If your traffic flows will pass through both the routed and the bridged interfaces, then you'll need to use VSX.
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