Dell S4048T Configuration Manual page 380

Dynamic ACL generation on the switch operating as a FIP snooping bridge function as follows:
Port-based ACLs These ACLs are applied on all three port modes: on ports directly connected to an FCF,
server-facing ENode ports, and bridge-to-bridge links. Port-based ACLs take
precedence over global ACLs.
FCoE-generated These take precedence over user-configured ACLs. A user-configured ACL entry
ACLs cannot deny FCoE and FIP snooping frames.
The following illustration shows a switch used as a FIP snooping bridge in a converged Ethernet network. The
top-of-rack (ToR) switch operates as an FCF for FCoE traffic. Converged LAN and SAN traffic is transmitted
FIP Snooping 380