Cisco Nexus 5000 Series Switch Fabric Manager Software Configuration Guide, NX-OS 4.0 (OL-16598-01, June 2008)

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10-10
Nexus 5000 Series Switch Fabric Manager Software Configuration Guide
OL-16598-01
Chapter 10 Configuring Fibre Channel Interfaces
Configuring Fibre Channel Interfaces
To configure the interface using Fabric Manager, perform this task:
Step 1 In the Physical Attributes pane, expand Switches > Interfaces, and then choose FC Physical. For a
virtual Fibre Channel Interface, expand Switches > Interfaces > Ethernet > FCoE > Virtual FC
Interfaces.
You see the interface configuration in the Information pane.
Step 2 Click the General tab.
Step 3 Click Description. Enter the desired text.
Step 4 (Optional) Set additional configuration parameters using the other tabs.
Step 5 Click Apply Changes icon.
Configuring Administrative Speeds
Administrative speed can be configured on a physical Fibre Channel interface (but not on a virtual Fibre
Channel interface). By default, the administrative speed for an interface is automatically calculated by
the switch.
Caution Changing the administrative speed is a disruptive operation.
To configure administrative speed of the interface using Fabric Manager, perform this task:
Step 1 In the Physical Attributes pane, expand Switches > Interfaces, and then choose FC Physical.
You see the interface configuration in the Information pane.
Step 2 Click the General tab.
Step 3 Click Speed Admin. Set the desired speed from the drop-down list.
The number indicates the speed in megabits per second (Mbps). You can set the speed to 1-Gbps, 2-Gbps,
4-Gbps, or auto (default).
Step 4 Click Apply Changes.
Autosensing
Autosensing speed is enabled on all 4-Gbps interfaces by default. This configuration enables the
interfaces to operate at speeds of 1 Gbps, 2 Gbps, or 4 Gbps on the 4-Gbps ports. When autosensing is
enabled for an interface operating in dedicated rate mode, 4-Gbps of bandwidth is reserved, even if the
port negotiates at an operating speed of 1-Gbps or 2-Gbps.
Configuring SD Port Frame Encapsulation
You can set the frame format to EISL for all frames transmitted by the interface in SD port mode. If you
set the frame encapsulation to EISL, all outgoing frames are transmitted in the EISL frame format for
all SPAN sources.