Tech Corner / Routing Protocols

Learn the Packet Delivery Process (Host-to-Host Communication) - Pt. 2

Learn the Packet Delivery Process (Host-to-Host Communication) - Pt. 2

In every network, data packets are exchanged among hosts through numerous networking devices along the traffic path, such as switches, routers, and firewalls among other devices, so you can comfortably perform your daily tasks. Although the traffic transfer happens instantly, the host …

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Essentials of Packet Delivery Process (Default Gateway and ARP) - Pt. 1

For everyday network communications and using various business and entertainment applications, a vast amount of data packets is exchanged between networking devices. However, the host-to-host delivery either in the same network or between different networks is not a simple process and …

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Exploring Routing Functions and the Purpose of the Routing Table

Exploring Routing Functions and the Purpose of the Routing Table

For everyday network operations and proper exchange of data throughout the enterprise environment, routing functionality must be implemented on Layer 3 devices. This functionality is usually performed on routers, although it can also be provided by other devices such as firewalls and …

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Why Is BGP the King of Routing Protocols?

Why Is BGP the King of Routing Protocols - a brief overview

Routers must be aware of all networks within the enterprise premises and the available routes to reach them to provide full network connectivity. For that purpose, routing protocols are used such as OSPF, EIGRP, or RIP, to dynamically exchange information and perform appropriate recal …

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What Is a GRE Tunnel and How Do You Configure One?

What Is a GRE Tunnel and How Do You Configure One?

Generic Routing Encapsulation (GRE) is a tunneling protocol for exchanging encapsulated data packets over an established tunnel. In other words, GRE creates a virtual point-to-point link between two devices in separate networks that need to communicate with each other.` The whole proc …

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Back to the Basics: Is Static or Dynamic Routing Better?

The TL;DR of this question: Neither. They're just different. Read on to learn when to use each routing solution. Routers are an essential piece of hardware in networks. They preserve the knowledge of the network topology and use that information to forward packets to each destination. …

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OSPF Configuration (Pt. 2) – Misc. Features and Multi-Area Configuration

OSPF Configuration Guide (Part 2) – Misc. Features and Multi-Area Configuration

OSPF can be implemented by using two different approaches, single-area or multi-area deployment. In a single-area design, all routers are part of the same area and are an appropriate option for small networks. Let’s not forget that in such a scenario many link-state advertisements (LS …

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Interior Routing Protocols Comparison: RIP vs EIGRP vs OSPF vs IS-IS

Interior Routing Protocols Comparison: RIP vs EIGRP vs OSPF vs IS-IS

Using a dynamic routing protocol in a network today is a common routing strategy for providing full network connectivity in enterprise environments. Simultaneously, it has many advantages over static routing and brings many additional benefits, especially in medium to large networks.

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