Cisco AP775A - Nexus Converged Network Switch 5010 Configuration Manual page 447

FCoE Best Practices
4 You must not configure the FCoE VLANs as members of Ethernet links that are not designated to carry
FCoE traffic because you want to ensure the scope of the STP for the FCoE VLANs is limited to UF links
only.
5 If the converged access switches (in the same SAN fabric or in another) need to be connected to each other
over Ethernet links for a LAN alternate path, then such links must explicitly be configured to exclude all
FCoE VLANs from membership. This action ensures that the scope of the STP for the FCoE VLANs is
limited to UF links only.
6 You must use separate FCoE VLANs for FCoE in SAN-A and SAN-B.
Note All Gen-1 (pre-FIP) and Gen-2 (FIP) CNAs are supported in a directly connected topology.
OL-16597-01
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
Directly Connected CNA Best Practice
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