Hey Folks, in this post I'll cover MPLS aspects. Including the control plane and data plane. I hope you enjoy it. I would to remind posts in this blog don't have the intention to be formal documentation. Instead, sharing my notes and evolution inside CCIE Enterprise Infrastructure exam topics. I'd…

Hey All, I'm glad you be here once again. In this short post, I will sync my CCIE journey progress. The last time did it was in CCIE syn-ack. csco. CCIE syn-ack.csco Hey Networkers, I’m here again.rafaesil.medium.com Something has changed. My main source of the truth becomes Oficial Guides, Official documentation, and also why not some RFC…

Hey There, CC1E 0x00 is on this side once again. Today, sharing some points of OSPFv2. The intent of this and others article in my profile is not to be formal. …

“Wake up, Neo… The matrix has you.” Hey folks, I hope you are doing well. I know that the window time between my last post and this one had some delay. But do not worry, Neo still following the white rabbit. So, today We are talking about Multicast. Which is…

‘Sup yo! Rafael in this side. Today we are talking about Software Defined Network (aka SDN). Particularly in the Wide Area Network context, SD-WAN. For CCIE EI Lab exam, flavor of SD-WAN required is SD-WAN Viptela. Cisco also owns Meraki solutions. The intended of this and others article in my…

H i there! here again. Rafael in this side talking about CCIE EI exam topics. For today, Welcome to the inter-domain routing with Border gateway protocol [the famous BGP]. Make sure you’re sitting comfortably, and have a cup of Tea, Coffee or Water close! First of all, let’s get what…

Hey There! First of all, I suggest you should get a coupe of coffee or your favorite tea. Today I’ll share some techniques that I’d like around Dynamic Multipoint Virtual Private Network ( a.k.a DMVPN). So, DMVPN allows us to make dynamic and static tunnels between hubs and Spokes. Many…

Eenhanced Interior Gateway Protocol is a distance-vector protocol with classless routing capabilities that was propriety from Cisco. Maybe some others can learn how EIGRP works (aka RFC information RFC7868). Note, distance vector knows that connected directed neighbor tell them. That’s the opposite of link-state protocols (OSPF and IS-IS). By default…

Hey Networkers, I’m here again. So between the last post and today, I got start my Cyber Defense Associate Degree at University FIAP and get started my journey at Cisco Systems as a CSS Intern \o/ ( It was all a dream). …