Mlnx-OS switch configuration
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Mlnx-OS configuration is similar to Cisco's IOS configuration. Probably on purpose.
After logging in to the switch, you'll be in unprivileged command mode. Elevate privileges with the enable command. Enter configuration mode with configure terminal.
Beginning config
hostnames FTW!
mellanox-sx6018-0 [standalone: master] > mellanox-sx6018-0 [standalone: master] > enable mellanox-sx6018-0 [standalone: master] # configure term mellanox-sx6018-0 [standalone: master] (config) # hostname this-is-my-hostname this-is-my-hostname [standalone: master] (config) # hostname mellanox-sx6018-0 mellanox-sx6018-0 [standalone: master] (config) # exit mellanox-sx6018-0 [standalone: master] # write memory mellanox-sx6018-0 [standalone: master] #
Note that the prompt changed when the hostname was changed.
Port types
The SwitchX ASIC in these switches can speak both Infiniband and Ethernet. Here let's change port 10 to be an Ethernet port:
mellanox-sx6018-0 [standalone: master] > enable mellanox-sx6018-0 [standalone: master] (config) # interface ib 1/10 mellanox-sx6018-0 [standalone: master] (config interface ib 1/10) # shutdown mellanox-sx6018-0 [standalone: master] (config interface ib 1/10) # exit mellanox-sx6018-0 [standalone: master] (config) # port 1/10 type ethernet mellanox-sx6018-0 [standalone: master] (config) # interface ethernet 1/10 mellanox-sx6018-0 [standalone: master] (config interface ethernet 1/10) # no shutdown mellanox-sx6018-0 [standalone: master] (config interface ethernet 1/10) # exit mellanox-sx6018-0 [standalone: master] (config) # exit mellanox-sx6018-0 [standalone: master] # write memory mellanox-sx6018-0 [standalone: master] #
Switching (ha!) it back to IB mode
mellanox-sx6018-0 [standalone: master] > mellanox-sx6018-0 [standalone: master] > enable mellanox-sx6018-0 [standalone: master] # configure terminal mellanox-sx6018-0 [standalone: master] (config) # interface ethernet 1/10 mellanox-sx6018-0 [standalone: master] (config interface ethernet 1/10) # shutdown mellanox-sx6018-0 [standalone: master] (config interface ethernet 1/10) # exit mellanox-sx6018-0 [standalone: master] (config) # port 1/10 type infiniband mellanox-sx6018-0 [standalone: master] (config) # exit mellanox-sx6018-0 [standalone: master] # write memory
And how about 4x 10GbE?
A 4 way breakout cable is needed for this. But they're really not any more expensive than a 40GbE Mellanox compatible DAC. And a couple dozen 10GbE ports from an 18 port switch is kinda cool, isn't it?