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RecontuerSG_258's avatar
RecontuerSG_258
Historic F5 Account
May 23, 2017

Can I create HA without going through Config Sync/HA Utility?

Hi all,

 

I have been deploying based on "external" and "internal" VLANs/Interfaces. Even the setup config utility would be asking for these two VLANs and it would be a breeze just to follow the config utility.

 

Customer is now saying they do not have "External" and "Internal" subnets. Traffic comes from an office building internally (not Internet) to reach this F5 appliance in an off-site data centre. When the traffic that is coming to this F5 appliance, it comes as 10.x.x.x/24 and the servers supposed to be behind F5 are also in the 10.x.x.x/24 range.

 

So, I have skipped the config utility, and manually created a VLAN to communicate with their server farm. However for HA, I can't create another VLAN with the same subnet mask. I have connected a regular copper port from one F5 device to another and attempted and successfully created a VLAN over this copper port interface.

 

My question is, how do I create HA between two devices without going through Config Sync/HA Utility setup since it will always ask for "external" and "internal" VLANs?

 

application delivery
LTM
one subnet

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  • Jad_Tabbara__J1's avatar
    Jad_Tabbara__J1
    Icon for Cirrostratus rankCirrostratus
    May 23, 2017

    Hello Recounter,

     

    You don't need to run the "Config Sync/HA Utility" to set up a cluster. When you first install a BIG-IP you first enter a valid license, then the management settigs, than you can exit the utility in order to make custom "Network settings".

     

    After exiting the utility, you should create an "internal-vlan" for traffic, and a dedicated VLAN for your cluster "VLAN-HA".

     

    Once you have created these VLANs on both member. You can go to "Device Management" window. From this menu you will be able to create your HA.

     

    You can follow this step by step guide to create a "Active/Standby" HA group

     

    https://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/bigip-device-service-clustering-admin-11-6-0/11.html

     

    It is recommended to dedicate a VLAN-HA only for the HA, in this VLAN-HA you will have only both Appliance or VA connected.

     

    Regards