This is typically how it's set up. Taking a switch as a shim to split the single ISP connections out to two or more firewalls. L2 separation is usually supported in most security policies. Using a stack with redundant switches is usually how I go about it. One ISP goes to one stack Member, and the 2nd ISP goes to the second stack member.
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Dustin Burns
Lead Mobility Engineer @Worldcom Exchange, Inc.
ACCX 1271| ACMX 509| ACSP | ACDA | MVP Guru 2022-2023
If my post was useful accept solution and/or give kudos
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