H3C Technologies H3C S10500 Series Switches - Manual (Page 26)

15
Configuring VFC interfaces
A VFC interface can connect to an ENode, or a switch operating in the FCF, NPV, or Transit mode.
A VFC interface can operate in E mode, F mode (the default), or NP mode.
A VFC interface is a virtual logical interface. It implements the functionality of an FC interface. To make
a VFC interface work, bind it to a physical Ethernet interface. The switch encapsulates the FC packets on
a VFC interface in FCoE packets and transmits the packets over the Ethernet interface bound to the VFC
interface.
To avoid FCoE packet loss in the Ethernet, you must perform the following tasks on the Ethernet interface
bound to the VFC interface:
• Configure DCBX, PFC in auto mode, and ETS on the Ethernet interfaces that connect the switch to
servers.
• Configure DCBX and PFC in auto mode on the Ethernet interfaces that connect the switch to disk
devices.
• Forcibly enable PFC on the Ethernet interfaces connected to other switches.
For more information about DCBX, PFC, and ETS, see Layer 2—LAN Switching Configuration Guide.
Configuring a VFC interface
Step Command Remarks
1. Enter system view. system-view N/A
2. Create a VFC interface and
enter its view.
interface vfc interface-number N/A
3. Configure the mode of the
VFC interface.
fc mode { e | f | np }
By default, the mode of a VFC
interface is F.
An FCF switch supports E and F
modes.
An NPV switch supports F and NP
modes.
4. Bind the specified Ethernet
interface to the VFC
interface.
bind interface interface-type
interface-number [ mac
mac-address ]
By default, no Ethernet interface is
bound to a VFC interface.
The VFC interface sends and receives
packets through the Ethernet interface
bound to it.
When you bind an Ethernet interface
to a VFC interface connecting to
multiple ENodes through a Transit
switch, you must specify an FCoE
MAC address.