Network OS Administration Guide

Supporting Network OS 6.0.1a

Part Number: 53-1003768-04

Fibre Channel ports overview

Fibre Channel (FC) ports provide the ability to connect a Brocade VCS Fabric cluster to a Fibre Channel switch in a Fabric OS network.

The FlexPort feature is the only method that a switch running Network OS 5.0.0 or later can connect FC ports. For instructions on how to use FlexPort, refer to the "Configuring FlexPort" chapter of the Network OS Layer 2 Switching Configuration Guide.

The following platforms are Flexport-capable:

  • Brocade VDX 2740
  • Brocade VDX 2746
  • Brocade VDX 6740
  • Brocade VDX 6740T
  • Brocade VDX 6740T-1G

These connections can be regular but not long distance. The following Network OS Fibre Channel port types are supported:

  • E_Port: Can be used to connect only to an EX_Port on a FC SAN with Fibre Channel Routing configured.
  • F_Port:
    • Supports FC target connectivity (standards based F_Port).

    • Supports bidirectional traffic internally from VF_Port, or internal ISL port.

    NOTE
    You must enable fcoeport default for the interface for the Fibre Channel logins to be available to connect to F_Ports.
  • Auto (G_Port) — This is the default.
  • N_port:
    • Default port type in Access Gateway mode

    • Available in Access Gateway mode only

    • Supports bidirectional traffic internally from VF_Port.

    • External connection to F_Port on a FC SAN

  • VF_port:
    • For FCoE initiator or target connectivity.
    • Supports bidirectional traffic internally to E_Port, F_Port, VF_Port (all in FCF mode), and N_Port (in AG mode).

FC ports can connect to a FC switch in a Fabric OS network through two methods:
  • Using an Inter-Switch Link (ISL) connection from an FC E_port on a Flexport-capable switch to a FC router's EX_Port; this in turn connects to the FC switch in the Fabric OS network. The VDX FC ports are configured as E_Ports for this connection. Refer to Connecting to FC Fabric through FC Router.
  • Using a direct connection from an FC port on a Flexport-capable switch to an F_Port on a FC router in a Fabric OS network. The VDX FC ports are configured as N_Ports through the Access Gateway feature. Refer to Using Access Gateway.