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Lucas_Kaczmarsk's avatar
Lucas_Kaczmarsk
Icon for Nimbostratus rankNimbostratus
Apr 05, 2018

Adding a Network Interface to the BIG-IP Virtual Edition in HA mode.

Hello Guys,

 

I'm planning to add a virtual NIC on the ESXi server to each of our HA units. I'm reading this article and it all seems clear to me, however I'm wondering if there is a process specific to adding a NIC in a HA pair?

 

https://support.f5.com/csp/article/K12149

 

My scenario is that customer currently has an interface in 'untagged' mode and one subnet with a gateway located on the F5. Now they want to move more vlans and subnets to the F5 so my understanding is that I need to add a tagged interface to be able to receive additional traffic for other vlans.

 

Thanks for help in advance.

 

Lucas

 

application delivery
LTM
TMSH

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  • youssef1's avatar
    youssef1
    Icon for Cumulonimbus rankCumulonimbus
    Apr 05, 2018

    Hello Lucas,

     

    there is no specific procedure for adding an interface on HA Pair but just good sense. Having HA allow you to do this manipulation without edge effect.because adding an interface requires a reboot.

     

    So first of you have to begin with standby device and as you mentioned I advise you to create a Tagged VLAN, it allow you to create more Tagged vlan on the same interface. Then create a self IP on your new VLAN on your interface and always from standby device try to reach (Ping) the GW of you new VLAN in order to validate that your work is correct.

     

    Then process a failover then do the same job on device 1 that standby. You will just have to create a floating IP more.

     

    Don't forget VLAN name have to be the same between your ha pair...

     

    And if you don't use Route Domain and I think it's your case, you can have only on Default GW. So if you want to reach an equipement behind you new network/vlan you have to add route...

     

    Regards