Reference Guide

FCoE Transit | 353
Configuring 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.
Configuring 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 FLOGI request/response and confirmed use of
the configured FC-MAP value for the VLAN.
FIP Snooping on an NPIV Proxy Gateway
When you configure an S5000 as an NPIV proxy gateway and enable Fibre Channel capability, FIP
snooping is automatically enabled on all VLANs using the default FIP snooping settings. An FCoE map is
used to identify the SAN fabric to which FCoE storage traffic is sent. FIP snooping is automatically
configured on the FCoE VLAN specified in the FCoE map using the FC-MAP parameter in the map:
• When you apply an FCoE map to a server-facing Ethernet interface in ENode port mode
• When you apply an FCoE map to a fabric-facing FC interface
For more information, refer to NPIV Proxy Gateway.
FIP Snooping in an S5000 Stack
FIP snooping is not supported on stack units in an S5000 stack.
Note: The FCoE-Trusted Port mode used to connect to another FIP snooping bridge (bridge-bridge link)
is not supported on the S5000.
Note: When an S5000 is configured as an NPIV proxy gateway, only the fip-snooping
max-sessions-per-enodemac
command is supported to configure FIP snooping.