FCoE Best Practices and Examples

Whenever possible use the Nexus 5K/6K in NPV mode. Also for interop cases. Be aware! NPV feature erases almost all configs on the switch. mgmt0 will be intact.

DCNM is the right tool to facilitate management. 

Storage VDC is used on Nexus 7K for FcoE. traffic is split based on ethertype on shared ports. 

VDC best practice structure on N7K with FCoE is 3 VDC’s. (Admin, Ethernet, Storage)

“where” command is helpful command

Enable lldp and lacp features

Enable QoS and policy for FCoE. 

FCoE host ports are ALWAYS trunk

Allocate FCoE VLAN’s range from LAN VDC. 

Storage VDC can shutdown vfc interface without affecting LAN. Other way around, interface goes down. 6.2.x adds warning on LAN VDC. 

vfc port can bind to port-channel. 

Nexus 5K and 7K have different bandwith %. (50/50, 80/20, 70/30) 

vPC to host with FCoE is supported on 5K and 6K

FCoE with Dual-Homed FEX is supported on 55xx 

in VPC+ (FabricPath) design, the FCoE VLAN is NOT FabricPath, but CE VLAN

Multihop FCoE is supported, also in UCS. A hop is to or between FCF switches. FCoE-NPV is not a hop. 

Converged FCoE ISL is not supported on the Nexus 7K. Dedicated FCoE ISL is supported on N5K/6K/7K

on the host interface, the native VLAN carries FIP traffic.

Published by

Michel van Kessel

Specialist in Data Center Infrastructure Designs and Cloud Designs. CCIE Data Center #44197 #CiscoChampion

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