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…
This guide marks the first of a few guides related to Cisco Nexus vPC. Standing for Virtual Port-Channel. This is very much like the well-loved Stackwise concept for Catalyst switches. However, instead of the devices becoming a single logical switch with one management plane, the devices stay individually managed. vPC Read more…
In this guide, we are going to look at the setup of a cisco network using 802.1x wired authentication. This lab consists of the following: lab-dc01 – Windows Server 2019 AD-DS Server with AD-CS Roles lab-frad01 – Ubuntu 22.04 server for running FreeRadius dot1x-rtr – Cisco C1111-4P Router to connect Read more…
Here is a YouTube playlist I created showing the process of setting up the same Multi-Site Fabric as the guide I created on here: These videos go through all the parts I explained on here but in more detail and with practical examples.
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 EXT routers have moved to be connected to the 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 1000 and vlan 1001: DC1-LEAF1# show Read more…