Now that we've covered the two flavours of IRB in depth, I want to share more of a discussion piece. Technical details are interesting, sometimes even fun, but what about real-world operational considerations? "Everyone has a plan..." Viewing the intimidating assortment of pikes, swords, sharp, and

Now let's continue our look at routing with EVPN-VXLAN as we focus on symmetrical IRB. This post is essentially building upon a lot of what we covered in the previous post. So, if you haven't read that yet, please do, then meet me back here. This

Thus far, this series of posts have all been about Layer 2 over Layer 3 models; the customer ethernet frames encapsulated in UDP, traversing L3 networks. The routing has been confined underlay, the customer traffic has stayed within the same network. No longer! In this post, things start getting a

In this post we will have a look at another EVPN Route Type, that being RT-3, which goes by the rather opaque name of 'Inclusive Multicast Ethernet Tag'; and look at how it is used to ensure EVPN peers flood traffic to those neighbours that need it. Firstly,

The story so far * In post 1 we looked at VXLAN, an encapsulation type that enables L2 traffic to traverse L3 networks, the use case being virtual overlay networks to provide connectivity to VMs and containers. * VXLAN alone uses data plane learning to build a view of the MAC addresses

In this second post I will look at Ethernet VPN (EVPN), what is it and how to configure a BGP EVPN session on Aruba devices. Please note, this post will focus on the establishment of the BGP EVPN session between peers, and thus will not present a fully functioning EVPN

In this series of blog posts I'm going to break down how to configure Aruba AOS-CX switches for VXLAN and EVPN, plus explain how to read the EVPN table and various 'show' commands. In this first post I will look at VXLAN, its configuration and operation.