Deployment Guide

34 Dell Networking FC Flex IOM: Deployment of FCoE with Dell FC Flex IOM, Brocade FC switches,
and Dell Compellent Storage Array
Deployment/Configuration Guide
2. Configure port to the CNA as a hybrid port. Create a LAN VLAN and tag it to both the
tengigabitethernet 0/4 interface going to the respective CNA and port channel going up to VLT.
3. Enable FC capability
4. Create DCB Map and configure the priority-based flow control (PFC) and enhanced transmission
selection (ETS) settings for LAN and SAN traffic. Priorities or Class of Service (CoS) are mapped to
priority groups using the priority-pgid command. In this example, priorities 0, 1, 2, 4, 5, 6, and 7
are mapped to priority group 0. Priority 3 is mapped to priority-group 1.
5. Create FCoE VLAN
6. Next, create a FCoE MAP so FCoE traffic is mapped to the respective VLAN. The FCoE MAP is
applied to both the tengigabitethernet 0/4 interface going to the respective CNA port and to
the FC interface connecting to the FC switch. Note, on MXL/IOA w/ FC Flex IOM, FCoE is always
mapped to priority 3.
7. Apply DCB map to downstream interface going to server.
8. Configure uplink failure detection.
The same procedure is repeated for the Dell MXL blade switch w/ FC Flex IOM connecting to fabric B.
Note a different fc-map and FCoE VLAN should be used for each fabric.
Especially important to note is the fact that the same Ethernet port on the MXL where the FCoE MAP is
applied is also untagged on the default VLAN 1. This is needed because the FIP protocol communicates
over the default VLAN to discover the FCoE VLAN. The LAN traffic is tagged on VLAN 5.