CCNP

OSPF Neighbor States – OSPF Neighbor Forming Process

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ospf neighbor states

After OSPF Basics it is time to look at “OSPF Neighbor States”. In this article, we will review to step by step OSPF neighbor adjacency. May be you saw the image below before, but we will examine it deeply. 1) First step of  “OSPF neighbor states” is determining the “Router ID”s. Both routers determine their router ID’s […]

CCNP

OSPF Configuration Example : Step By Step Guide

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ospf example

It is time to take a look to configuring OSPF ( Open shortest path first ) with an OSPF configuration example. In this article we will see “how to configure OSPF” step by step. In our example, we will examine the figure below deeply. 1 Configure OSPF for the network above. Router 1 should be a […]

CCNP

IPv6 Configuration Example : Step By Step Guide

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ipv6 configuration

IPv6 can work with static routing and dynamic routing protocols as well as IPv4. Configuration steps are similar, but there are a few differences too. RipNG, OSPFv3 and static routing configurations will be made for the figure below : * First , IPv6 should be activated on each router via “ipv6 unicast-routing” command. IPv6 CONFIGURATION […]

CCNP

OSPF Virtual Link Configuration Example

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ospf virtual link

OSPF virtual link is a very important configuration trick, in this article we will look how to configure OSPF virtual link with a little example. After we will see it deeply too. When we are configuring OSPF , we all know that all areas must be connected with Area 0. That means we can’t configure […]

CCNP

OSPF Over NBMA (Non-Broadcast Multi Access) Network

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nbma mode

In this article, we will review “OSPF Over NBMA Network“. First let’s take a look at to NBMA Topology types. There are 3 types of NBMA topologies. NBMA TOPOLOGIES * Hub and Spoke (Star topology ) * Partial Mash  (Partial redundant topology) * Full Mesh ( Full redundant topology) OSPF PROCESS OVER NBMA ( NON-BROADCAST […]

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OSPF Configuration : How To Configure OSPF ?

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advanced ospf config

In this article we will make an example for “advanced OSPF configuration”. We talked about OSPF basics and made an OSPF configuration for beginners on our course. Now it is time to go deep and combine virtual link, LSA types and etc. in one example ! Let’s see how we can configure OSPF. 1) Configure OSPF for […]

CCNP

What Is OSPF Protocol ? OSPF Basics And Overview

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ospf lsa types

OSPF ( Open shortest path first ) is a dynamic routing protocol which is used for routing. In Networkel we talked about EIGRP basics before, it is time to take a look “what is OSPF” and “how OSPF works”. OSPF ( Open shortest path first ) is a link – state protocol like IS-IS which we will examine later. All […]

CCNA

What Is Router ?

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router

Router is a network device which provides ip routing according to its routing table. Routing table is the table, where the best routes to the destination networks appear. Router checks the source and destination addresses of the packet and sends it to receiver via dynamic ip routing protocols or static routes. Static route is the […]