Dell 53-1002116-01 manual Configuring FCoE Vlan

3 Configuring the FCoE interfaces

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-vlanVLAN 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-mapfcoe-map default

cee-map :default

fcoe-vlan :6 interface(s) :

22	Dell Converged Enhanced Ethernet Administrator’s Guide
	53-1002116-01