fcoe fcmap

To configure the FCoE MAC address prefix (FC-Map) used to associate the FCoE node (ENode), use the fcoe fcmap command. To restore the default global FC-Map value of 0xefc00, use the no form of this command.

fcoe fcmap value

no fcoe fcmap value

Syntax Description


FC-Map value. The range is from 0xefc00 to 0xefcff, and the default is 0xefc00.

Command Default


Command Modes

Global configuration mode

Command History



This command was introduced.

Usage Guidelines

Before you use this command, you must enable FCoE on the switch by using the feature fcoe command.

You can prevent data corruption due to cross-fabric talk by configuring an FC-Map, which identifies the Fibre Channel fabric for this Cisco Nexus 5000 Series switch. When the FC-Map is configured, the switch discards the MAC addresses that are not part of the current fabric.

This command requires a license.


This example shows how to configure the FC-Map value on the switch:

switch(config)# fcoe fcmap 0xefc10 

Related Commands


fcoe fcf-priority

Configures the FCoE Initialization Protocol (FIP) priority value.

fcoe fka-adv-period

Configures the time interval at which FIP keep alive (FKA) messages are transmitted to the MAC address of the ENode.

feature fcoe

Enables FCoE on the switch.

show fcoe

Displays the FCoE parameters, such as an FC-Map, default FCF priority value, and FKA advertisement period.