Fabric Configuration Guide, Cisco DCNM for SAN, Release 5.x
Configuring FCoE
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Table Of Contents

Configuring FCoE

About FCoE

Guidelines and Limitations

Configuring FCoE

Enabling FCoE

Configuring FCoE Using DCNM for SAN

Configuring FCoE Using Device Manager

Field Descriptions for FCoE

Feature Set

Control

Config

VSAN-VLAN Mapping

Additional References

Related Document

Standards

MIBs

RFCs

Feature History for FCoE


Configuring FCoE

This chapter describes how to configure Fibre Channel over Ethernet (FCoE) on a Cisco Nexus 5000 Series Switch, Cisco Nexus 7000 Series Switch, and Cisco 9000 Family MDS switch.

This chapter includes the following sections:

•About FCoE

•Guidelines and Limitations

•Configuring FCoE

•Field Descriptions for FCoE

•Additional References

About FCoE

Cisco Nexus 5000 Series Switch, Cisco Nexus 7000 Series Switch, and Cisco MDS 9000 family switches support Fibre Channel over Ethernet (FCoE), which allows Fibre Channel and Ethernet traffic to be carried on the same physical Ethernet connection between the switch and the servers. FCoE requires the underlying Ethernet to be full duplex and to provide lossless behavior for Fibre Channel traffic.

The FCoE Initialization Protocol (FIP) allows the switch to discover and initialize FCoE-capable entities that are connected to an Ethernet LAN.

Guidelines and Limitations

When configuring FCoE, note the following guidelines and limitations:

•FCoE is supported on 10-Gigabit Ethernet interfaces.

•FCoE is not supported on private VLANs.

•DPVM supports MAC-based device mapping for FCoE devices. DPVM does not supoort pWWN mapping for FCoE devices.

Configuring FCoE

This section describes how to configure FCoE on a switch and includes the following topics:

•Enabling FCoE

•Configuring FCoE Using DCNM for SAN

•Configuring FCoE Using Device Manager

Enabling FCoE

Fibre Channel over Ethernet (FCoE) provides a method of transporting Fibre Channel traffic over a physical Ethernet connection. By default, each Ethernet interface attempts to enable FCoE by advertising that it has FCoE to the adapter. If the FCoE negotiation fails, you can configure the Cisco Nexus 5000 Series switch to disable FCoE for this interface.

Note In Cisco Nexus 5000 Series switches, FCoE is supported on all 10-Gigabit Ethernet interfaces.

Detailed Steps

To enable or disable FCoE features on a switch using Device Manager, follow these steps:

Step 1 Launch Device Manager from the Cisco Nexus 5000 Series switch.

Note Use the Control tab to enable FCoE on a Cisco Nexus 5000 Series switch.

Step 2 Choose Admin > Feature Control.

You see the Feature Control dialog box.

Note You cannot enable FCoE using Device Manager on Cisco Nexus 7000 series and Cisco MDS 900 family switches. Cisco Nexus 7000 series and Cisco MDS 9000 Family switches uses a feature set to display FCoE information.

Step 3 In the dialog box, in the table, click the fcoe_mgr row, and then click the Action cell in the fcoe_mgr row. From the drop-down list, choose enable to enable the FCoE feature in the switch.

Note You can also disable the FCoE feature in the switch. To do so, from the drop-down list in the Action column, choose disable.

Step 4 Click Apply.

Note If the Cisco Nexus 5000 Series switch is running a Cisco NX-OS release prior to Release 4.2(1), you must do the following after you enable or disable FCoE on the switch:
 · In the confirmation dialog box that appears, click Yes to enable the FCoE feature in the   switch.
 · Reboot the switch before you use the FCoE feature.

Configuring FCoE Using DCNM for SAN

From Cisco NX-OS Release 5.2, FCoE is supported on MDS and Cisco Nexus 7000 switches. To enable or disable FCoE, Cisco MDS 9000 Family and Cisco Nexus 7000 switches uses feature set MIBs.

Detailed Steps

To configure FCoE on a switch, follow these steps:

Step 1 In the Physical Attributes pane, choose Switches > FC Services > FCoE.

You see the FCoE information pane shown in Figure 7-1.

The Config tab displays the FCoE parameters for each Cisco Nexus 5000 Series, Cisco Nexus 7000 Series, and Cisco MDS 9000 Family switches. Use the VLAN-VSAN mapping tab to create mappings. Table 7-1 lists the FCoE parameters for a switch.

For more information on configuring Cisco Nexus 5000 Series and Nexus 7000 Series switches, see the Cisco Nexus 5000 Series and Nexus 7000 Series Configuration Guides.

Figure 7-1 FCoE Information Pane

Table 7-1 FCoE Parameters 

Parameter
Description

Feature Set

Enables or disables the FCoE feature set on Cisco MDS 9000 Family or Nexus 7000 Series switches.

Control

Enables or disables FCoE on Cisco Nexus 5000 Series switches.

Config

Displays the FCoE configuration information on the switch. For example, FC Map and FCF Priority.

VLAN-VSAN Mapping

Displays the VSAN and VLAN IDs with their operational status.


Step 2 Double-click the relevant FCoE parameter for a switch, and modify the value of the parameter.

Step 3 In the Information pane toolbar, click the Apply Changes icon to save the changes.

Configuring FCoE Using Device Manager

Detailed Steps

To configure FCoE on a switch using Device Manager, follow these steps:

Step 1 Launch Device Manager from the Cisco Nexus 5000 Series switch.

Step 2 Choose FCoE > Config.

You see the FCoE Config dialog box shown in Figure 7-2.

The Config tab displays the FCoE parameters, such as FC Map, default FCF priority value, and FKA advertisement period, for each Cisco Nexus 5000 Series switch that runs Cisco NX-OS Release 4.1(3) or later releases. Table 7-1 lists the FCoE parameters for a switch.

Figure 7-2 FCoE Config Dialog Box

Step 3 Double-click the relevant FCoE parameter for a switch, and modify the value of the parameter.

Step 4 Click Apply to save the changes.

Field Descriptions for FCoE

Feature Set

Field
Description

Status

Display only. Displays the FCoE status on the switch.

Command

Display only. Displays the feature set command.

Last Command

Display only. Displays the last feature set command executed on the switch.

Result

Display only. Displays the result of the last feature set command executed on the switch.


Control

Field
Description

Status

Display only. Displays the FCoE status on the switch.

Command

Display only. Displays the feature set command.

Last Command

Display only. Displays the last feature set command executed on the switch.

Result

Display only. Displays the result of the last feature set command executed on the switch.


Config

Field
Description

FC Map

The FCoE Mac Address Prefix used to associate the FCoE Node (ENode).

Default FCF Priority

The default FCoE Initialization Protocol (FIP) priority value advertised by the Fibre Channel Forwarder (FCF) to ENodes.

FKA Adv. Period

The time interval at which FIP Keepalive (FKA) messages are transmitted to the MAC address of the ENode.


VSAN-VLAN Mapping

Field
Description

VSAN Id

The ID of the VSAN.

VLAN Id

The ID of the VLAN.

Oper State

Shows the operational state of this VLAN-VSAN association entry.


Additional References

For additional information related to implementing FCoE, see the following section:

•Related Document

•Standards

•MIBs

•RFCs

Related Document

Related Topic
Document Title

Cisco MDS 9000 Family Command Reference

Cisco MDS 9000 Family Command Reference


Standards

Standard
Title

No new or modified standards are supported by this feature, and support for existing standards has not been modified by this feature.

-


MIBs

MIB
MIBs Link

No new or modified MIBs are supported by this feature, and support for existing MIBs has not been modified by this feature.

To locate and download MIBs, go to the following URL:

http://www.cisco.com/en/US/products/ps5989/prod_technical_reference_list.html


RFCs

RFC
Title

No new or modified RFCs are supported by this feature, and support for existing RFCs has not been modified.

-


Feature History for FCoE

Table 7-2 lists the release history for this feature. Only features that were introduced or modified in 5.0(1a) or a later release appear in the table.

Table 7-2 Feature History for FCoE 

Feature Name
Releases
Feature Information

Configuring FCoE

5.2(1)

Added information about discovering Cisco Nexus 7000 and Cisco MDS 9000 Family switches using the FCoE wizard. FICON tape acceleration over FCIP efficiently utilizes the tape device by decreasing idle time.

The following sections provide information about this feature:

•Enabling FCoE

•Configuring FCoE Using DCNM for SAN

•Configuring FCoE Using Device Manager