Reference Guide

• 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 to 30 do not support 1GE.

To view the ports that belong to each port group, use the show port-group command.

Unied port groups

In an OS10 unied port group, all ports operate in either Ethernet or Fiber Channel mode — you cannot mix modes for ports in the same

unied port group. To activate Ethernet interfaces, congure a port group to operate in Ethernet mode and specify the port speed. To

activate Fibre Channel interfaces, see Fibre Channel interfaces.

On a S4148U-ON, the available Ethernet interfaces depend on the currently congured port prole. For more information, see S4148U-ON

port proles.

Figure 2. S4148U-ON unied port groups

To enable Ethernet interfaces in a unied port group:

1 Congure a unied port group in CONFIGURATION mode. Enter 1/1 for node/slot. The port-group range is 1–10.

port-group node/slot/port-group

2 Activate the unied port group for Ethernet operation in PORT-GROUP mode.

mode Eth {100g-1x | 50g-2x | 40g-1x | 25g-4x | 10g-4x}

• 10g-4x — Split a QSFP28 or QSFP+ port into four 10G interfaces.

• 25g-4x — Split a QSFP28 port into four 25G interfaces.

•

40g-1x — Set a QSFP28 port to 40G mode (use with a QSFP+ 40GE transceiver).

• 50g-2x — Split a QSFP28 port into two 50G interfaces.

• 100g-1x — Reset a QSFP28 port to 100G mode.

3 Return to CONFIGURATION mode.

exit

4 Enter Ethernet Interface mode to congure other settings. Enter a single interface, a hyphen-separated range, or multiple interfaces

separated by commas.

interface ethernet node/slot/port[:subport]

Congure Ethernet unied port interface

OS10(config)# port-group 1/1/7

OS10(conf-pg-1/1/7)# mode Eth 25g-4x

Interfaces