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2020/01/07

Split Mellanox Port from 1x100 Gigabit to 4x10 Gigabit

Split Mellanox Port from 1x100 Gigabit to 4x10 Gigabit ports and connect to Windows Server Host

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Split Mellanox Port from 1x100 Gigabit to 4x10 Gigabit ports and connect to Windows Server Host

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Split Mellanox Port 16
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enable
configure terminal 
interface ethernet 1/16
shutdown
module-type qsfp-split-4
Yes

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To used Port 16 (the 4 split ports) for Host running S2D  (RDMA/RoCE)
***
dcb priority-flow-control enable force
dcb priority-flow-control priority 3 enable
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WRR or Strict - Example with Strict
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interface ethernet 1/16/1-1/16/4 traffic-class 3 dcb ets strict
interface ethernet 1/16/1-1/16/4 traffic-class 7 dcb ets strict
interface ethernet 1/16/1-1/16/4 flowcontrol send off force
interface ethernet 1/16/1-1/16/4 flowcontrol receive off force
interface ethernet 1/16/1-1/16/4 speed 10000 force
interface ethernet 1/16/1-1/16/4 mtu 9216 force
interface ethernet 1/16/1-1/16/4 dcb priority-flow-control mode on force
interface ethernet 1/16/1 switchport mode hybrid
interface ethernet 1/16/2 switchport mode hybrid
interface ethernet 1/16/3 switchport mode hybrid
interface ethernet 1/16/4 switchport mode hybrid
interface ethernet 1/16/1 switchport hybrid allowed-vlan (your VLAN list for that port)
interface ethernet 1/16/2 switchport hybrid allowed-vlan (your VLAN list for that port)
interface ethernet 1/16/3 switchport hybrid allowed-vlan (your VLAN list for that port)
interface ethernet 1/16/4 switchport hybrid allowed-vlan (your VLAN list for that port)

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To reset the port 16 back to one port
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interface ethernet 1/16/1  shutdown
interface ethernet 1/16/2  shutdown
interface ethernet 1/16/3  shutdown
interface ethernet 1/16/4  shutdown
interface ethernet 1/16/1  module-type qsfp force

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For more information about how to configure and monitor the Mellanox Switch with RoCE