OS10 Enterprise Edition User Guide Release 10.4.0E(R3)

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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 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    -
                           

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