Enabling The Fcoe Transit Feature; Enable Fip Snooping On Vlans; Configure The Fc-Map Value - Dell S4048T Configuration Manual

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Enabling the FCoE Transit Feature

The following sections describe how to enable FCoE transit.
NOTE: FCoE transit is disabled by default. To enable this feature, you must follow the
Configure FIP Snooping.
As soon as you enable the FCoE transit feature on a switch-bridge, existing VLAN-specific and FIP snooping
configurations are applied. The FCoE database is populated when the switch connects to a converged
network adapter (CNA) or FCF port and compatible DCB configurations are synchronized. By default, all FCoE
and FIP frames are dropped unless specifically permitted by existing FIP snooping-generated ACLs. You can
reconfigure any of the FIP snooping settings.
If you disable FCoE transit, FIP and FCoE traffic are handled as normal Ethernet frames and no FIP snooping
ACLs are generated. The VLAN-specific and FIP snooping configuration is disabled and stored until you re-
enable FCoE transit and the configurations are re-applied.

Enable FIP Snooping on VLANs

You can enable FIP snooping globally on a switch on all VLANs or on a specified VLAN.
When you enable FIP snooping on VLANs:
• FIP frames are allowed to pass through the switch on the enabled VLANs and are processed to generate
FIP snooping ACLs.
• FCoE traffic is allowed on VLANs only after a successful virtual-link initialization (fabric login FLOGI)
between an ENode and an FCF. All other FCoE traffic is dropped.
• You must configure at least one interface for FCF (FCoE Forwarder) mode on a FIP snooping-enabled
VLAN. You can configure multiple FCF trusted interfaces in a VLAN.
• A maximum of eight VLANS are supported for FIP snooping on the switch. When enabled globally, FIP
snooping processes FIP packets in traffic only from the first eight incoming VLANs. When enabled on a
per-VLAN basis, FIP snooping is supported on up to eight VLANs.

Configure the FC-MAP Value

You can configure the FC-MAP value to be applied globally by the switch on all or individual FCoE VLANs to
authorize FCoE traffic.
The configured FC-MAP value is used to check the FC-MAP value for the MAC address assigned to ENodes in
incoming FCoE frames. If the FC-MAP value does not match, FCoE frames are dropped. A session between an
ENode and an FCF is established by the switch-bridge only when the FC-MAP value on the FCF matches the
FC-MAP value on the FIP snooping bridge.
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