Thursday, March 5, 2026

TEK@link

efficiency of innovation

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TEK@link

efficiency of innovation

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Network

related to network topics such a routing and switching. may include also some topics related to doing qos infrastructure management and administration

SD-WAN Big Picture!

dexterd09 mins

Dans ce blog, nous discuterons du SD-WAN pour essayer de comprendre son enjeu et avantage pour l’entreprise. Nous commençons par explorer l’offre du marché, définir la technologie et son principe de base, du besoin de son usage et scénarios, avant de discuter de son architecture, implémentation et troubleshooting de son opération. Marché (offres du) Incontestablement…...

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Multicast Routing: RPF… Part 6/6

dexterd05 mins

In this blog, we study RPF operation. Introduction This blog is a part of a serie of blogs about multicast routing: Test network In our test network RPF in action At R2 A “show ip interface brief” shows Digging into the interface tunnel0 details The tunnel was created by PIM process to join the RP…...

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Multicast Routing: Rather Than Dense, Sparse It And Let’s Meet At Rendez-Vous Point… Part 5/6

dexterd05 mins

In this post let’s detail the operation of PIM (Protocol Independent Multicast) in sparse mode. Previous posts tackled the operation of PIM dense mode. Let’s recall that PIM is the multicast routing protocol that allows PIM routers exchange information needed distribute multicast traffic to receivers. Introduction This blog is a part of a serie of…...

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What Is the Best Way of Subnetting?

dexterd05 mins

In this post, let’s recall what is subnetting for routing and switching purposes and how it is done. Motivation Network subnetting is very important subject that maybe referred to as VLSM for variable length subnetting. The basic idea is about managing a space of IP addresses (IPv4). Historically, a network length or space was fixed…...

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Cisco HSRP In Detail

dexterd09 mins

In this blog, we’ll discuss in detail the operation of HSRP one of the most known FHRP (First Hop Routing Protocols) protocols proposed by Cisco to help secure (in terms of redundancy) the gateway (for hosts or servers) within a LAN. The objective is simple: configure one gateway address and provision as many real routers…...

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