Reference Guide

*profile-1 and profile-2 activate the same port mode capability on unied and Ethernet ports. The dierence is that in

profile-1, by default SFP+ unied ports 1-24 come up in Fibre Channel mode with 2x16GFC breakouts per port group. In profile-2,

by default SFP+ unied ports 1-24 come up in Ethernet 10GE mode. profile-1 allows you to connect FC devices for plug-and-play;

profile-2 is designed for a standard Ethernet-based data network.

**Oversubscription: Congure oversubscription to support bursty storage trac on a Fibre Channel interface. Oversubscription allows a

port to operate faster, but may result in trac loss. To support oversubscription, use the speed command in Interface conguration mode.

This command is not supported on an Ethernet interface. In S4148U-ON port proles:

• SFP+ and QSFP28 port groups in 4x8GFC mode support 16GFC oversubscription on member interfaces.

• QSFP28 ports in 2x16GFC mode support 32GFC oversubscription. SFP+ port groups in 2x16GFC mode do not support 32GFC

oversubscription. 2x16GFC mode activates subports 1 and 3.

• QSFP28 ports in 4x16GFC mode support 32GFC oversubscription.

Breakout interfaces:

• To congure breakout interfaces on a unied port, use the mode {FC | Eth} command in Port-Group conguration mode. The

mode {FC | Eth} command congures a unied port to operate at line rate and guarantees no trac loss.

• To congure breakout interfaces on a QSFP+ Ethernet port, use the interface breakout command in global Conguration mode.

1GE mode: Only SFP+ ports support 1GE; QSFP+ and QSFP28 ports 25-30 do not support 1GE.

View interface conguration

To view basic interface information, use the show interface, show running-configuration, and show interface status

commands. You can stop scrolling output from a show command by entering CTRL+C. Display information about a physical or virtual

interface in EXEC mode (including up/down status, MAC and IP addresses, and input/output trac counters).

show interface [type]

• phy-eth node/slot/port[:subport] — Display information about physical media connected to the interface.

• status — Display interface status.

• ethernet node/slot/port[:subport] — Display Ethernet interface information.

• loopback id — Display loopback interface information (0 to 16383).

• mgmt node/slot/port — Display Management interface information.

• port-channel id-number — Display port-channel interface information (1 to 128).

Interfaces