1 Reply Latest reply on May 3, 2018 1:11 AM by eddie.notz

    How to run DHCP server on SB7700 InfiniBand switch

    heb

      Hello,

      I want to use DHCP to manage the  IPoIB IP numbers in our IB network. Managing static IPs gets to cumbersom. Ideally I want to run DHCP on the main IB switch SB7700 Mlnx-os 3.6.4006. So the questions are

       

      - How do I run DHCP for IPoIB on an SB7700.  Do I need a VM/Docker or can it run on the native OS?

      - How do I configure the DHCP server and the VM/docker image to run over IPoIB?

      - are there any special considerations regarding the client configuration? i.e. what is different to a plain eth interface?

       

      I know this document

      HowTo Enable DHCP Service Over Docker Container (MLNX-O

      HowTo Enable DHCP Service Over Docker Container (MLNX-OS)

      But it seems to  mention ETH switches  only and a comment tells that docker support will be removed in future MLNX-OS versions.

       

      Thank you, any help is welcome.

       

      Kind regards,

      Heiner

        • Re: How to run DHCP server on SB7700 InfiniBand switch
          eddie.notz

          Hi Heiner,

           

          The flow should be something along the lines of:

           

          1. configure an ip address on ib0 of the switch

          switch(config)# interface ib0 ip address x.x.x.x/y

           

          2. docker pull <your dist of choice>

           

          3. start a container with the network privilege (so you can listen/send on the ib0 interface)

           

          4. in the docker install a dhcp server ,configure it

           

          5. start the dhcp server