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Comparison of VLAN vs Subnet in TCP/IP Computer Networks

A few decades ago, flat networks were the norm. I remember in my very first job as a network engineer, most of our clients’ networks consisted of a single broadcast domain (VLAN) and a huge single flat Layer 3 network (usually in the 10.0.0.0 range). As time passed by and networks started to become bigger […]

Filed Under: General Networking

All About Syslog Protocol (What is Syslog, Default Port, Purpose etc)

In this article we’ll discuss and examine the Syslog Protocol which runs over its default UDP port 514 (or the secure TCP port 6514), and also describe the characteristics and usefulness of Syslog in networks. All computer systems and network devices generate a historical record of events that take place on the device. This record […]

Filed Under: General Networking

Comparison of IP Layer 3 Packet vs Layer 2 Frame in Networking

Prepare to peek under the covers of how your data can travel from as little as a few inches to thousands of miles from device to device and through tens of network devices in the path. In this article, we will explore the differences between a layer 3 Internet Protocol (IP) Packet and a layer […]

Filed Under: General Networking

What is an SFP Port-Module in Network Switches and Devices

A Small Form Factor Pluggable (SFP) Port on a network switch is an Ethernet Interface which has been designed to allow a small module (which contains a connector and small circuit board) to be inserted into the switch. This device is called an SFP Module. There are different types of SFP modules and SFP ports, […]

Filed Under: Cisco Switches, General Networking

8 Different Types of VLANs in TCP/IP Networks

A VLAN (Virtual Local Area Network) is a fundamental concept in TCP/IP computer networks and every professional in this field must have a deep understanding of this technology. In networking, VLANs are implemented and configured on Ethernet Switches and they work at OSI Layer 2. They are a method to logically separate Layer 2 Ethernet […]

Filed Under: Cisco Switches, General Networking

Comparison of Static vs Dynamic Routing in TCP/IP Networks

“Packet Routing” is the primary operation in TCP/IP networks that establishes communication from a source device located on one network to a destination device located on another network. Image Credit Within the OSI model, routing is a Layer 3 process which groups Internet Protocol (IP) data into Packets that are put inside of Frames (Layer […]

Filed Under: Cisco Routers, General Networking

Comparison of “peer-to-peer” vs “client-server” Network Models

A computer network is made up of software and hardware components that allow one device to communicate with another. Hardware provides the set of instructions that utilizes the networking equipment for data transmission, whereas software specifies the sequence of commands (communication protocol) that uses the hardware equipment for data transmission. A basic data transfer is […]

Filed Under: General Networking

12 Types of Network Devices Found in Modern Enterprise Networks

I’ve been working with small and large networks for almost two decades. I can say that I have pretty much seen it all. There are so many different types of network devices that you can write a whole book about. In this article I will describe briefly the most common network device types that you […]

Filed Under: General Networking

Comparison and Differences Between MAC vs IP Address

Every host or device that is connected to a TCP/IP network must have two addresses in order to send and receive traffic on the network. These are MAC and IP addresses. Knowing the details and functionality of these two address types is essential for anyone working in networking or in I.T in general. In this […]

Filed Under: General Networking

Comparison of FTP and HTTP Network Communication Protocols

FTP and HTTP are two of the oldest network protocols in existence. Although they made their appearance in the nineteen-eighties, they are still among the most popular network protocols used in Information Technology and Internet in general. HTTP is an acronym for Hypertext Transfer Protocol.  FTP is an acronym short for File Transfer Protocol.  Both […]

Filed Under: General Networking

8 Different Types of Servers in Computer Networks

If you’re reading this article right now, you’ve already utilized the client-server model without even realizing it. You (as the client) have requested a resource (i.e this webpage) which was served to you by a webserver. This is the prevailing architecture for modern communications whereby digital data is offered by servers to clients. The alternate […]

Filed Under: General Networking

10 Different Types of IP Addresses Used in Computer Networks

An Internet Protocol (IP) Address is a term that you will hear a lot if you are into any field of Information Technology. Especially people in TCP/IP networking have to deal with IP addresses in their every-day professional life. Just like any house or building in the world has a unique postal mail address in […]

Filed Under: General Networking

Difference Between Routers and Switches in TCP/IP Networks

The key difference between routers and switches in TCP/IP networks is that Switches primarily function to provide Layer 2 connectivity and Routers provide Layer 3 connectivity (as described in the OSI layer model). What exactly does this mean? From a high level view it means that switches allow hosts to communicate as long as they […]

Filed Under: General Networking

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About Networks Training

We Provide Technical Tutorials and Configuration Examples about TCP/IP Networks with focus on Cisco Products and Technologies. This blog entails my own thoughts and ideas, which may not represent the thoughts of Cisco Systems Inc. This blog is NOT affiliated or endorsed by Cisco Systems Inc. All product names, logos and artwork are copyrights/trademarks of their respective owners.

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