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FAQ

  • Common

    Is IPv6 supported?

    No, STACKIT Load Balancer only supports IPv4.

    Does STACKIT Load Balancer run in networks without internet connection?

    No, STACKIT Load Balancer instances require network connectivity to the load balancer control plane via public endpoints.

    Can I add an external service or a service from another project as a target?

    Yes, you need to set the disableTargetSecurityGroupAssignment option. You will find more details for target security groups in “basic concepts of the ALB”.

    Can I configure multiple listeners or ports per STACKIT Load Balancer?

    Yes, STACKIT Load Balancer supports multiple HTTP and HTTPS listeners on one assigned IP address.

    Can I use another load balancer in my project as a target?

    No, this is not supported due to internal design.

    Can targets in one target pool use different ports?

    No, all targets in a pool must use the same port.

  • NLB-specific

    How many concurrent connections can a single STACKIT Network Load Balancer handle?

    See the service plans table for an overview of available plans and maximum connections.

    Can I scale up my STACKIT Network Load Balancer?

    Yes, you can vertically scale up STACKIT Network Load Balancer by selecting a different service plan. Horizontal scaling is not available in the current active/passive setup.

    Can I use a load balancing method other than Round Robin?

    By default, STACKIT Network Load Balancer uses the Round Robin method. If you enable session persistence on your target pool (for example, in the Portal UI or via the API by setting session_persistence.use_source_ip_address=true), the method changes to Maglev.

  • ALB-specific

    Can I use a load balancing method other than Maglev?

    No, Maglev is the only supported load balancing method for STACKIT Application Load Balancer.