Loadbalancer.org Enterprise vs MetalLB

Loadbalancer.org Enterprise is an application delivery controller for managing application traffic across hybrid and multi-cloud deployments. It handles Layer 4 and Layer 7 traffic with application-aware routing, scheduling options and health checks. Its web application firewall offers customizable rules, real-time threat mitigation, OWASP Top 10 protection and PCI-DSS Section 6.6 compliance. Global server load balancing distributes traffic across regions in active-active or active-passive configurations. Deployments include hardware, virtual appliances and cloud appliances for AWS, Azure, GCP and HPE Private Cloud, among other listed environments. Administrators can use a web interface, SSH, console access, RESTful and PowerShell APIs, and configuration backup and selective restore. The product also lists integrations including Prometheus, Grafana, Ansible, Puppet, Chef and Terraform. Plans include perpetual licenses and cloud BYOL options; pricing starts at $150/mo, with a 30-day trial. Enterprise VA Basic is $2,360, paid once, billed Perpetual, with a $150 /mo subscription.

MetalLB provides network load balancing for Kubernetes clusters that do not run on a cloud provider. It assigns service IP addresses from operator-configured pools and announces them through ARP, NDP, or BGP, depending on the chosen mode. In layer 2 mode, one cluster machine announces an address using ARP for IPv4 or NDP for IPv6. In BGP mode, cluster machines peer with nearby routers, which can distribute traffic across multiple nodes. The recommended FRR-K8s mode supports BFD, IPv6, and merging additional FRR configuration. MetalLB is open source, with no paid plans listed. Installation options include Kubernetes manifests, Kustomize, Helm, and an Operator on OperatorHub. After installation it remains idle until configured with resources such as an IPAddressPool in its deployment namespace. Requirements include Kubernetes 1.13.0 or later, a compatible cluster network, and IPv4 addresses. The project lists AWS, Azure, DigitalOcean, and Google Cloud as unsupported and says it is generally incompatible with cloud providers. MetalLB describes itself as a beta project and cautions that its configuration format may change incompatibly as development continues.