Is "Bridged" mode supported for WAN COM?

Hello,

I've been going through VPLEX training and also reviewing the Excel document "IPComConfigWorksheet" to better understand how IP based WAN COM works/is supported.

In this Excel spreadsheet, I see that both "Bridged" (Layer 2) and "Routed" (Layer 3) scenarios are included.  The spreadsheet frequently refers to "Bridged" mode as used for Proof of Concept and Test deployments, which I completely understand.  However, my question is: does EMC fully support VPLEX WAN COM connectivity across Bridged connections in Production deployments?  For example, the customer gets a couple of Layer 2 WAN circuits, where each ISP supplies a switch at each site, and the Layer 2 VLANs are "stretched" across sites for each of the WAN COM port groups.  Fully supported?  Or must customer introduce Layer 3 routing between sites?

Thanks,

Bill