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Dell EMC SmartFabric OS10 User Guide Release 10.5.0

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Configure breakout mode

Using a supported breakout cable, you can split a 40GE QSFP+ or 100GE QSFP28 Ethernet port into separate breakout interfaces. All breakout interfaces have the same speed. You can set a QSFP28 port to operate in 40GE mode with a QSFP+ transceiver.
interface breakout node/slot/port map {10g-4x | 25g-4x | 40g-1x | 50g-2x |
100g-1x}
  • node/slot/port — Enter the physical port information.
  • 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 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, use the interface ethernet node/slot/port:subport command in CONFIGURATION mode.

Each breakout interface operates at the configured speed. Use 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, use the mode {Eth | FC} command in Port-Group Configuration mode.

NOTE You cannot configure the 40G ports 13, 14, 15, 16, 29, 30, 31, and 32 to split into four 10G interfaces on the S6010 platform.

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    -

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