[{"data":1,"prerenderedAt":16},["ShallowReactive",2],{"blog-tag-en-metallb":3},[4],{"path":5,"title":6,"description":7,"date":8,"tags":9},"\u002Fblog\u002Fen\u002Fk3s-baremetal-loadbalancer-bgp-metallb-cilium","Bare-Metal K3s LoadBalancer: When ARP Hits Its Limit, Design for BGP","When you can't rely on a cloud load balancer for on-prem or edge K3s clusters, why does Layer2 (ARP) load balancing eventually hit a wall? A practical look at MetalLB's BGP mode vs. Cilium's BGP Control Plane, and how to decide when to migrate.","2026-08-26",[10,11,12,13,14,15],"k3s","kubernetes","metallb","bgp","load-balancer","edge-computing",1792488960296]