Bgp on Support Tools

MetalLB BGP Configuration for Bare Metal Kubernetes: Enterprise Load Balancer Guide

Tue, 22 Sep 2026 00:00:00 -0500

MetalLB brings cloud-provider LoadBalancer functionality to bare metal Kubernetes clusters, enabling the use of LoadBalancer-type Services without relying on external cloud infrastructure. Operating in either Layer 2 (ARP/NDP) or BGP mode, MetalLB provides enterprise-grade load balancing capabilities essential for on-premises and edge Kubernetes deployments.

This comprehensive guide focuses on BGP mode configuration, which provides superior scalability, true load balancing across multiple nodes, and integration with existing network infrastructure. We’ll cover installation, BGP peering configuration, advanced routing scenarios, high availability patterns, and production-tested practices for enterprise bare metal Kubernetes environments.

Enterprise MetalLB Implementation: Advanced Bare-Metal Load Balancing for Production Kubernetes

Wed, 01 Jul 2026 00:00:00 -0500

Bare-metal Kubernetes clusters lack cloud provider load balancer integration, creating challenges for exposing services externally. MetalLB bridges this gap by providing native load balancer capabilities for on-premises deployments. This comprehensive guide demonstrates enterprise-grade MetalLB implementation with advanced BGP routing, Layer 2 failover, multi-protocol support, and production monitoring strategies for mission-critical infrastructure.

Advanced BGP Routing and Multi-Homing Strategies: Enterprise Network Resilience Guide

Mon, 23 Mar 2026 00:00:00 -0500

Border Gateway Protocol (BGP) serves as the backbone of internet routing, enabling autonomous systems to exchange routing information and implement sophisticated traffic engineering policies. This comprehensive guide explores advanced BGP configurations, multi-homing strategies, and enterprise-grade network resilience patterns for production environments.

Cilium BGP Control Plane for Kubernetes: Complete Enterprise Implementation Guide

Tue, 10 Feb 2026 09:00:00 -0500

Bare-metal and on-premises Kubernetes clusters face a fundamental networking challenge that cloud providers solve transparently: making Services and Pods reachable from outside the cluster. In cloud environments, a LoadBalancer Service automatically provisions an external IP and programs the cloud provider’s network fabric. On bare metal, that integration does not exist. Border Gateway Protocol (BGP) fills this gap by enabling Kubernetes nodes to advertise routes for Pod CIDRs, LoadBalancer IPs, and custom prefixes directly to the upstream network infrastructure.

Cilium’s BGP Control Plane integrates this capability directly into the CNI layer. Built on the GoBGP routing library, the BGP Control Plane runs a BGP speaker on each selected node, advertising routes to configured peers without requiring an external component like MetalLB. Combined with Cilium’s LB-IPAM (LoadBalancer IP Address Management), this provides a complete, single-stack solution for bare-metal service exposure — from IP allocation through route advertisement to eBPF-accelerated packet forwarding.

Running K3s in an IPv6-Only Environment with Cilium

Sun, 01 Jun 2025 00:00:00 -0500

Most guides for Kubernetes focus on IPv4 by default, but IPv6 is no longer a second-class citizen. In this post, I walk through configuring a K3s cluster using only IPv6, with Cilium as the CNI, and BGP to announce addresses to my router. This setup runs entirely on a public IPv6 prefix—no dual-stack, no IPv4 fallback.