Dell EMC SmartFabric OS10 User Guide Release 10.5.0

Support for untagged VLAN in FCoE

In SmartFabric mode, OS10 provides support to use any untagged VLAN for FCoE Ethernet uplinks and Ethernet server ports, which are part of the FCoE VLAN.

The FCoE uplink identifies FIP Snooping bridge (FSB) mode at the switch. You must configure the same untagged VLAN on the FCoE uplinks and server ports for the FCoE sessions to come up.

In SmartFabric mode, you can assign any untagged VLAN to Ethernet server ports that belong to a FCoE VLAN that has one or more FC Gateway uplinks. The FC Gateway uplink identifies N-Port Proxy Gateway (NPG) mode at the switch. Also you can assign any untagged VLAN to Ethernet server ports that belong to a FCoE VLAN that has one or more FC Direct attach uplinks. The FC Direct attach uplink identifies F-Port mode at the switch.

Restrictions

• SmartFabric mode does not support multiple FCoE uplinks from the same IOM.
• In FCoE mode, the untagged VLAN on the server port and the FCoE uplink must be the same. This condition ensures that the untagged FIP VLAN discovery packets in the L2 frame, switch to the untagged VLAN.
• You cannot configure multiple FCoE uplinks corresponding to different untagged VLANs.