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.
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:
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FCoE is supported on 10-Gigabit Ethernet interfaces.
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FCoE is not supported on private VLANs.
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DPVM supports MAC-based device mapping for FCoE devices. DPVM does not supoort pWWN mapping for FCoE devices.
Configuring FCoE
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. |
To enable or disable FCoE features on a switch using Device Manager, follow these steps:
Procedure
Step 1 |
Launch Device Manager from the Cisco Nexus 5000 Series switch.
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Step 2 |
Choose Admin > Feature Control . You see the Feature Control dialog box.
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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.
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Step 4 |
Click Apply .
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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.
To configure FCoE on a switch, follow these steps:
Procedure
Step 1 |
In the Physical Attributes pane, choose Switches > FC Services > FCoE . 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 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.
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Step 2 |
Double-click the relevant FCoE parameter for a switch, and modify the value of the parameter. |
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Step 3 |
In the Information pane toolbar, click the Apply Changes icon to save the changes. |
Configuring FCoE Using Device Manager
To configure FCoE on a switch using Device Manager, follow these steps:
Procedure
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 1. 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 1 lists the FCoE parameters for a switch. |
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 |
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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 |
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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
Related Topic |
Document Title |
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Cisco MDS 9000 Family Command Reference |
Cisco MDS 9000 Family Command Reference |
Standards
Standard |
Title |
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No new or modified standards are supported by this feature, and support for existing standards has not been modified by this feature. |
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MIBs
MIB |
MIBs Link |
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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 1 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.
Feature Name |
Releases |
Feature Information |
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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: |