Dell PowerSwitch S4128F-ON OS10 Enterprise Edition User Guide Release 10.4.0ER - Page 86
Breakout auto-configuration, Breakout
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• 25g-4x - Split a QSFP28 port into four 25G interfaces. • 40g-1x - Set a QSFP28 port for use with a QSFP+ 40G transceiver. • 50g-2x - Split a QSFP28 port into two 50G interfaces. • 100g-1x - Reset a QSFP28 port to 100G speed. To configure an Ethernet breakout interface, enter the interface ethernet node/slot/port:subport command in CONFIGURATION mode. Each breakout interface operates at the configured speed. Enter the no version of the interface breakout command to reset a port to its default speed - 40G or 100G. To configure breakout interfaces on a unified port, enter the mode {Eth | FC} command in Port-Group Configuration mode. Configure interface breakout OS10(config)# interface breakout 1/1/7 map 10g-4x Display interface breakout OS10# show interface status Port Description Status Speed Duplex Mode Vlan Tagged-Vlans Eth 1/1/1 down 0 auto - Eth 1/1/2 down 0 auto A 1 - Eth 1/1/7:1 down 0 auto A 1 - Eth 1/1/7:2 down 0 auto A 1 - Eth 1/1/7:3 down 0 auto A 1 - Eth 1/1/7:4 down 0 auto A 1 - Eth 1/1/25 down 0 auto A 1 - Breakout auto-configuration You can globally enable front-panel Ethernet ports to automatically detect SFP pluggable media in a QSFP+ or QSFP28 port. The port autoconfigures breakout interfaces for media type and speed. For example, if you plug a 40G DAC cable with 4x10G far-side transceivers into a QSFP28 port, the port autoconfigures in 10g-4x Interface-breakout mode. enable auto-breakout RJ-45 ports and ports that are members of a port group do not support breakout auto-configuration. The breakout auto-configuration feature is disabled by default. Enable breakout auto-configuration OS10# enable auto-breakout Display breakout auto-configuration Before you plug a cable in Ethernet port 1/1/25: OS10# show interface status Port Description Status Speed Duplex Mode Vlan Tagged-Vlans Eth 1/1/1 down 0 auto - Eth 1/1/2 down 0 auto A 1 - Eth 1/1/25 down 0 auto A 1 - Eth 1/1/29 down 0 auto A 1 - 86 Interfaces