Category Archives: Uncategorized

Internetworking  –  The art and science of connecting individual Internetworking – The art and science of connecting individual local-area networks (LANs) to create wide-area networks (WANs) , and connecting WANs to form even larger WANs. Internetworking can be extremely complex … Continue reading →

In this article we will learn about the OSPF Routing Protocol Open-Shortest-Path-First (OSPF) is the most widely used interior gateway protocol routing protocol on the world because it is a public (non-proprietary) routing protocol while its biggest rival, EIGRP, is … Continue reading →

In this tutorial we will learn about RIP routing protocol Routing Information Protocol (RIP) is a distance-vector routing protocol. RIP sends the complete routing table out to all active interfaces every 30 seconds. RIP only uses hop count (the number … Continue reading →

Let’s start this article with the question: Why do we need Frame Relay? Let’s take a simple example. Suppose you are working in a big company and your company has just expanded to two new locations. The main site is … Continue reading →

In this tutorial we will learn about access list. Access control lists (ACLs) provide a means to filter packets by allowing a user to permit or deny IP packets from crossing specified interfaces. Just imagine you come to a fair … Continue reading →

Welcome to the most basic tutorial for networker! Understanding about OSI model is one of the most important tools to help you grasp how networking devices like router, switch, PC… work. Let’s take an example in our real life to … Continue reading →

In this article we will learn about the main components of a Cisco router and how the boot process takes place. Types of memory Generally Cisco routers (and switches) contain four types of memory: Read-Only Memory (ROM): ROM stores the router’s … Continue reading →

Cisco Certified Network Associate (CCNA) validates the ability to install, configure, operate, and troubleshoot medium-size route and switched networks, including implementation and verification of connections to remote sites in a WAN. CCNA curriculum includes basic mitigation of security threats, introduction … Continue reading →