Forum Discussion

InfraOps's avatar
InfraOps
Icon for Mist rankMist
Nov 25, 2024

Is a Dedicated Interface, VLAN, and Self IP Required for a VIP in an F5 Configuration?

Hi All,

We have a Red Hat Satellite server (repository), and the client servers need to connect to it via the VIP. The pool members are the Satellite Capsule servers.

The Capsule servers communicate directly with the Satellite server, but the clients should only connect to the Capsule servers through the VIP.

Current Configuration:

  • Two Capsule servers (pool members) are in one subnet, while the other two are in a different subnet.
  • The VIP is in a different subnet than both the Self IPs and the pool members.

Questions:

  1. Is it correct that we need two Self IPs because the pool members are split across two different subnets?
  2. Does the VIP require its own dedicated interface, VLAN, and Self IP?
  3. The pool members, Self IP, and VIP cannot be in the same subnet as the management interface, correct?
F5 setup
vip
  • Sebastiansierra's avatar
    Sebastiansierra
    Icon for MVP rankMVP
    Nov 25, 2024

    Hi InfraOps,

    About your questions:

    1. Is it correct that we need two self-IPs because the pool members are split across two different subnets? Yes, you need three IPs for non-floating and floating IPs in each VLAN.
    2. Does the VIP require its own dedicated interface, VLAN, and Self IP? No, you could use a LAG connection and tag both VLANs, but the Vlans must be differents same than the Self-IPs
    3. The pool members, Self IP, and VIP cannot be in the same subnet as the management interface, correct? No, it can´t, The management plane is separated from the data plane.

    I hope it works.