Archivo de la categoría: CCIE

Deployment Management Tools

1.ANSIBLE Ansible is an open source tool based on Python, used to deploy applications to remote nodes and provision servers in a repeatable way. It gives you a common framework for pushing multi-tier applications and application artifacts using a push … Seguir leyendo

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Be BGP Expert Engineer

Today I’ll take advantage of the topology created by Stuart Fordham in order to dive so deeply how works BGP. CCIE – BGP Topology Note the topology was created on EVE-NG (http://eve-ng.net/) Firstly we’ll focus on create our first BGP-Confederation: … Seguir leyendo

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VSS

Nowadays, one of the mandatory requirements is Datacenter resilience. In order to get resilience in our datacenter we use often the VSS protocol in CORE devices. Requirements:  Supervisor Engine 720 (WS-SUP720-3BXL): The VSL link between both members of VSS only … Seguir leyendo

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Dot1Q Vs Q-in-Q

Today we review the main differences between both Layer2 protocols Dot1Q and Q-in-Q. Dot1Q (802.1Q) Trunking Protocol 802.1Q inserts a 4-byte header, also called a tag into the original Ethernet frame (right after Source Address field) instead of encapsulating the … Seguir leyendo

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Road to CCIE

Hello networking nerds! After to think accurately concerning my road map I have decided to prepare the CCIE R&S. I think that will be good way to acquire more knowledge and extend my current netoworking concepts. From now on, I … Seguir leyendo

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uRPF

Basically, Unicast Reverse Path Forwarding (uRPF) let us to avoid accepting spoofing sources and prevent DDoS attacks on Edge Routers. Features: Very Low impact on CPU Tipically done in Hardware Less wasted bandwidth Will keep the “NET” cleaner uRPF has … Seguir leyendo

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LDP vs RSVP

I want to share some brief notes about two protocols used for setting up the LSP in MPLS: LDP and RSVP protocols. LDP LDP is the youngest one. Was created explicitly to distribute labels and it’s not an extension or … Seguir leyendo

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