![]() When BGP is enabled, Calico’s default behavior is to create a full-mesh of internal BGP (iBGP) connections where each node peers with each other. Here are some common ways it is done with Calico. There are many ways to configure a BGP network depending on your environment. You can configure Calico nodes to peer with each other, with route reflectors, or with top-of-rack (ToR) routers. You can think of Calico networking as providing a virtual router on each of your nodes. Each router running BGP has one or more BGP peers - other routers which they are communicating with over BGP. This how-to guide uses the following Calico features:īGP is a standard protocol for exchanging routing information between routers in a network. In public cloud deployments, it provides an efficient way of distributing routing information within your cluster, and is often used in conjunction with IPIP overlay or cross-subnet modes. ![]() In an on-premises deployment this allows you to make your workloads first-class citizens across the rest of your network. Value Ĭalico nodes can exchange routing information over BGP to enable reachability for Calico networked workloads (Kubernetes pods or OpenStack VMs). Configure BGP (Border Gateway Protocol) between Calico nodes or peering with network infrastructure to distribute routing information.
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