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    Configuring an FCoE VLAN Interface

    When you configure the switch as an FCoE-FC gateway, a Layer 3 FCoE VLAN interface transmits and receives Fibre Channel over Ethernet (FCoE) traffic between the gateway and FCoE-capable servers on the Ethernet network. Configuring a Layer 3 FCoE VLAN interface on the switch creates virtual fabric port (VF_Port) interfaces facing the FCoE server virtual node ports (VN_Ports).

    The FCoE VLAN interface is the interface for the dedicated VLAN the FCoE servers use for FCoE traffic. Each FC fabric requires at least one dedicated FCoE VLAN and at least one Layer 3 FCoE VLAN interface to transport FCoE traffic. On QFabric systems, the FCoE VLAN interface, the FCoE VLAN, and the interfaces that are members of the FCoE VLAN must be on the same Node device.

    Note: FCoE VLANs (any VLAN that carries FCoE traffic) support only Spanning Tree Protocol (STP) and link aggregation group (LAG) Layer 2 features.

    Before you configure an FCoE VLAN interface, create the FCoE VLAN and assign 10-Gigabit Ethernet interfaces configured in tagged-access port mode to the VLAN. These 10-Gigabit Ethernet interfaces are the physical interfaces that transport the FCoE traffic to and from the FCoE devices in the Ethernet network.

    Each Ethernet interface that connects to FCoE devices must also include the native VLAN to transport FIP traffic, because FIP VLAN discovery and notification frames are exchanged as untagged packets. The FCoE VLAN must carry only FCoE traffic. A VLAN cannot transport a mix of FCoE and standard Ethernet traffic.

    FCoE VLAN interface configuration includes:

    • Configuring a VLAN to use as a dedicated FCoE VLAN.
    • Configuring a native VLAN for FIP traffic.
    • Configuring member interfaces for the FCoE VLAN.
    • Configuring the FCoE VLAN as a Fibre Channel (family) VLAN and setting the port mode value to f-port. Explicitly configuring the FCoE VLAN interface in F_Port mode is mandatory. The switch interface with which the FCoE server VN_Ports communicate must present a VF_Port to the servers.
    • Configuring the FCoE VLAN interface as the Layer 3 interface for FCoE traffic.

    To configure an FCoE VLAN interface:

    1. Configure a dedicated FCoE VLAN:
      [edit vlans]
      user@switch# set vlan-name vlan-id vlan-id


      For example, to configure a VLAN named fcoe_vlan with a VLAN ID of 100 as the FCoE VLAN:

      [edit vlans]
      user@switch# set fcoe_vlan vlan-id 100
    2. Configure a native VLAN for FIP traffic:
      [edit vlans]
      user@switch# set native vlan-id vlan-id


      For example, to configure the native VLAN with a VLAN ID of 1:

      [edit vlans]
      user@switch# set native vlan-id 1
    3. Configure member interfaces for the FCoE VLAN (use ethernet-switching as the family and tagged-access as the port mode):
      [edit interfaces]
      user@switch# set interface-name unit unit family family port-mode mode vlan members vlan-name


      For example, to configure the interface xe-0/0/10 as a member of the FCoE VLAN fcoe_vlan:

      [edit interfaces]
      user@switch# set xe-0/0/10 unit 0 family ethernet-switching port-mode tagged-access vlan members fcoe_vlan
    4. Assign member interfaces to the native VLAN:
      [edit interfaces]
      user@switch# set interface-name unit unit family family native-vlan-id vlan-id


      For example, to configure the interface xe-0/0/10 as a member of the native VLAN with the native VLAN ID 1:

      [edit interfaces]
      user@switch# set xe-0/0/10 unit 0 family ethernet-switching native-vlan-id 1
    5. Assign the Ethernet interfaces to the FCoE VLAN:
      [edit vlans]
      user@switch# set vlan-name interface interface-name


      For example, to assign the interface xe-0/0/10.0 to the FCoE VLAN named fcoe_vlan:

      [edit vlans]
      user@switch# set fcoe_vlan interface xe-0/0/10.0
    6. Define an interface as an FCoE VLAN interface in F_Port mode (to present a VF_Port to the FCoE servers):
      [edit interfaces]
      user@switch# set vlan unit unit family fibre-channel port-mode f-port


      For example, to configure VLAN unit 100 as an FCoE VLAN interface and set the port mode to f-port:

      [edit interfaces]
      user@switch# set vlan unit 100 family fibre-channel port-mode f-port
    7. Define the Layer 3 FCoE VLAN interface:
      [edit vlans]
      user@switch# set vlan-name l3-interface vlan-interface-name


      For example, to configure VLAN interface unit 100 (the FCoE VLAN interface defined earlier in this example) as the Layer 3 FCoE VLAN interface for FCoE VLAN fcoe_vlan:

      [edit vlans]
      user@switch# set fcoe_vlan l3-interface vlan.100
     

    Related Documentation

     

    Published: 2013-08-15

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