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22 Dell Converged Enhanced Ethernet Administrator’s Guide
53-1002116-01
Configuring the FCoE interfaces
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Only a single FCoE map is allowed, which is created automatically with the name “default.” You are
not be able to delete or rename this map. By default, if there are no other conflicting
configurations, the FCoE VLAN associated to the FCoE map is FCoE VLAN (1002) and the CEE map
associated is default CEE map (also called “default”).
The default startup-configuration file contains the following settings.
• priority-group-table 1 weight 40 pfc
• priority-group-table 2 weight 60
• priority-table 2 2 2 1 2 2 2 2
Configuring FCoE VLAN
By default, if there is no preexisting FCoE VLAN, one is created and assigned the VLAN ID of 1002.
But if the system already contains an FCoE VLAN, then that VLAN is considered the default VLAN
and is associated to the FCoE map. Only one FCoE VLAN can exist at a time.
If the system boots without any FCoE VLANs, but with VLAN 1002 assigned as a LAN VLAN, the
default FCoE VLAN is automatically assigned a different VLAN ID, depending on availability.
FCoE VLAN can be created from FCoE map mode as well. The fcoe-vlan VLAN ID command creates
the FCoE VLAN, if the corresponding VLAN does not exist in the system. If a VLAN already exists with
VLAN ID, then the command fails.
NOTE
Make sure your converged mode interface is not configured to classify untagged packets to the
same VLAN as the incoming VLAN-tagged packets. By configuring a converged interface to classify
untagged packets (by using classifiers or the default port VLAN ID) to the same VLAN as VLAN-tagged
packets coming into the interface, the FCoE hardware sends out untagged packets to the CNA.
These packets may be dropped, disrupting communications.
The FCoE VLANs can be seen using show vlan fcoe. Alternatively, show vlan brief can also be used,
in which FCoE VLANs are marked with an “(F)”.
NOTE
No VLAN classifiers (including FIP/FCoE classifiers) are allowed to be configured for FCoE VLAN.
To configure the FCoE VLAN, perform the following steps in global configuration mode.
1. Create the FCoE map and enter FCoE map mode.
switch(config)#fcoe-map default
2. Configure the FCoE VLAN for the FCoE map and delete the previous FCoE VLAN.
switch(conf-fcoe-map)#fcoe-vlan 5
The new FCoE VLAN 5 is created and the previous FCoE VLAN 1002 is deleted. This command
succeeds only if VLAN 5 can be created and VLAN 1002 can be deleted.
3. Display the fcoe map to ensure the successful creation.
switch(conf-fcoe-map)#do show fcoe-map
fcoe-map default
cee-map :default
fcoe-vlan :6
interface(s) :