In this series of guides, we will be completing the setup of a VXLAN fabric, with the leaf switches being in vPC pairs, this creates some interesting config additions we need to consider. In this part, we will look at the topology and setup the vPC domains. Here is the Read more…
In this guide, we are going to look at a less common, but still supported and deployed VXLAN EVPN model. Lets say we have two (or more) Data Centres and we need to connect them at Layer 2, but we don’t want to have a layer 2 link running between Read more…
The BGP output from a show bgp l2vpn evpn command is normally very long and sometimes confusing to understand. In this guide, I will walk through a sample output of a type-2 route and show why we get all the output and what it means. Before reading this, it implies Read more…
In this post, I am going to show the process of using PIM BiDir Phantom RP in the VXLAN EVPN topology we build in Parts 1 to 8 here. PIM is an important part of the VXLAN underlay as its used to route BUM (Broadcast, Unknown Unicast and Multicast) traffic. Read more…
Here is a YouTube video I created showing the process of setting up the same Fabric as the guide I created on here: This video goes through all the parts I explained on here but in more detail and with practical examples.
In the last part, we got route leaking in tenant VRFs working, in this part, we will look at giving the VRFs a way out of the Fabric! We have added some new devices to the topology: We can see the addition of the external router and server that are Read more…
In the last part, we got a multiple tenant VRFs working, in this part, we will look at joining the tenants up via route leaking. Lets remind ourselves of the topology: So, currently we have our two VRFs with separate routing tables for vlan 10 and vlan 20: leaf-1# show Read more…
In the last part, we got a single tenant VRF working, in this part, we will look at splitting vlan 20 off into its own separate Tenant to show a multi-tenant setup. Lets remind ourselves of the topology: All of the configuration below is for the Leaves in the topology. Read more…
In this part we are going to look at the L3VNI config to get the hosts in the two vlans talking to each other. Lets remind ourselves of the topology: All of the configuration below is for the Leaves in the topology. Vlan Configuration Firstly, we need to configure a Read more…
In this part we are going to look at the anycast gateway setup of the topology. This will help get the servers off their local network. Lets remind ourselves of the topology: Anycast gateways will be configured on each of the leaves using a virtual mac address so that mobility Read more…