Fcoe interface configuration, Downgrades – Brocade Network OS Administrator’s Guide v4.1.1 User Manual

Page 350

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Extra FCoE interfaces (the difference between the value of max-enodes and that of fcoe-
enodes
) are deleted.

In logical chassis cluster mode, the value of "Total-FCoE-Enodes" in the fabric map is set
to the total number of FCoE interfaces created in the cluster. In fabric cluster mode, that
value is set to the number of FCoE interfaces created on the respective RBridge.

• On nodes without an FCoE license:

The value of fcoe-enodes is set to 0 in the RBridge ID context of the running
configuration.

All FCoE interfaces are deleted.

Downgrades

• If the value of fcoe-enodes is set to local, a downgrade to the previous release (Network OS 4.0.0)

is not allowed.

• The user must ensure that the value of max-enodes is at least 256.
• The user must change the value of enodes-config to global before downgrading. The value set by

fcoe-enode on all RBridges in the cluster is set to the maximum of all fcoe-enodes values in the
cluster and that value is applied to all nodes. The extra required interfaces (max-enodes minus
fcoe-enodes) are created on appropriate nodes in the cluster.

• Following the downgrade, the value of max-enodes in Network OS 4.0.0 is the same as the value

set by fcoe-enodes in Network OS 4.1.0.

NOTE
For the complete syntax and examples of the fcoe-enodes and enodes-config commands, refer to
the Network OS Command Reference for the latest release.

FCoE interface configuration

FCoE maps are used to configure FCoE properties on interfaces. An FCoE map is a placeholder for
an FCoE VLAN and a CEE map. You assign FCoE maps on to physical interfaces using the fcoeport
command. Once the FCoE map is assigned onto an interface:

• The corresponding FCoE VLAN 1002 is applied to the interface.
• The corresponding CEE map is applied to the interface.
• The FCoE/FIP VLAN classifiers are applied to the interface.

In short, the interface becomes capable of carrying FCoE traffic. The FCoE map can be applied on an
interface only if the FCoE map is complete in all aspects. That is, it should have an FCoE VLAN and a
CEE map associated with it.

NOTE
Brocade does not support non-FCoE traffic over the FCoE VLAN. The FCoE VLAN should not carry
any mixed traffic.

Only a single FCoE map is allowed, which is created automatically with the name "default." You are
not able to delete or rename this map. By default, the FCoE VLAN associated to the FCoE map is
FCoE VLAN (1002) and the CEE map associated is the default CEE map (also called "default").

FCoE interface configuration

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Network OS Administrator’s Guide

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