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HP Switch 2920, two DHCP server

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  • 1.  HP Switch 2920, two DHCP server

    Posted Jun 13, 2016 05:20 AM

    Hello every body,

    I am deploying a solution of DHCP relay on an HP L3 2920 Switch. My question is very simple and Google does not find an answer for it : What is the priority between the DHCP servers on my switch?? The first IP address? The second ? or a random between the servers ??

    Dears,


    #HP2920
    #DHCPrelay


  • 2.  RE: HP Switch 2920, two DHCP server

    Posted Jun 13, 2016 02:19 PM

    If you define multiple ip helper addresses,  on receipt of DHCP discover packter, the DHCP relay will send unicast addresses to both simultaneously.  Both server might respond (2 DHCP offers) , the client will pick just one in its DHCP request



  • 3.  RE: HP Switch 2920, two DHCP server

    Posted Jun 13, 2016 08:35 PM

    If you *want* a priority, you configure the "Delay in DHCP Offer" option on your secondary DHCP server to, for example, 1000ms.



  • 4.  RE: HP Switch 2920, two DHCP server

    Posted Jun 15, 2016 04:50 AM

    Okay thank you :)

    And how much servers I can connect to my switch ?? There are limitations?