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Basavaraj_16797's avatar
Basavaraj_16797
Icon for Nimbostratus rankNimbostratus
Dec 16, 2015

BIG IP HA CONFIG

Hi Team,

 

We have purchased two BIGIP LTM devices and as a first task i have to configure HA between them, I have gone through the many documents in F5 and i am really confused now

 

what is the difference between hardbased failover and network based failover

 

which one i should configure ?

 

Thanks Basavaraj

 

application delivery
LTM

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  • StephanManthey's avatar
    StephanManthey
    Icon for MVP rankMVP
    Dec 16, 2015

    Hi,

     

    the hardware based failover is based on a serial cable (limited in length).

     

    So it is very likely you will prefer the network failover configuration. Since TMOS v11 you will need to configure self IPs per unit for heartbeat, mirroring and config sync.

     

    These self IPs should belong to a dedicated VLAN and have to be in port lockdown "allow default" mode, as they open up services for intra device-group communication.

     

    As a backup for the heartbeat the management IPs (system -> platform) can be used.

     

    After providing the required local self IPs in the device settings you will establish device trust and configure a device-group of type sync-failover with network failover enabled.

     

    Join both units to the new device-group, run initial sync. Mostly done ...

     

    Before you get into this make sure your hostnames are set properly (system -> platform) and you have configured unique device certificates (system > device certificates). Both units should be in sync with NTP.

     

    Cheers, Stephan