Enable Fip Snooping On Vlans; Configure The Fc-Map Value; Configure A Port For A Bridge-To-Bridge Link; Configure A Port For A Bridge-To-Fcf Link - Dell S4048–ON Configuration Manual

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.

Configure a Port for a Bridge-to-Bridge Link

If a switch port is connected to another FIP snooping bridge, configure the FCoE-Trusted Port mode for bridge-bridge links.
Initially, all FCoE traffic is blocked. Only FIP frames with the ALL_FCF_MAC and ALL_ENODE_MAC values in their headers are
allowed to pass. After the switch learns the MAC address of a connected FCF, it allows FIP frames destined to or received from the
FCF MAC address.
FCoE traffic is allowed on the port only after the switch learns the FC-MAP value associated with the specified FCF MAC address
and verifies that it matches the configured FC-MAP value for the FCoE VLAN.

Configure a Port for a Bridge-to-FCF Link

If a port is directly connected to an FCF, configure the port mode as FCF. Initially, all FCoE traffic is blocked; only FIP frames are
allowed to pass.
FCoE traffic is allowed on the port only after a successful fabric login (FLOGI) request/response and confirmed use of the
configured FC-MAP value for the VLAN.
FLOGI and fabric discovery (FDISC) request/response packets are trapped to the CPU. They are forwarded after the necessary
ACLs are installed.

Impact on Other Software Features

When you enable FIP snooping on a switch, other software features are impacted. The following table lists the impact of FIP
snooping.
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FCoE Transit