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Ethernet Protocol, CSMA/CD, Collisions
In this example, we will refer to an imaginary Ethernet network consisting of Stations A and B and any number of other stations. The status of the ...
Ethernet Protocol, CSMA/CD, Collisions
Novell's Proprietary Frame Format was developed based on a preliminary release of the 802.3 specification. After Novell released its proprietary fo...
Subnetting
Routing and Communication between subnets is the main topic here. This article analyses communications between subnets. We provide examples on diff...
Network Cabling
Today, Serial and Parallel Direct Cable Connections are considered obsolete methods of transferring data between computers. The fact is that even U...

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Netflow Articles:

This article will cover the basics of Netflow, including its use cases, Netflow supported devices, Netflow history, and variants. We’ll also dive i...
SNMP (Simple Network Management Protocol) and Netflow are both popular protocols with admins, prized for their ability to give visibility over the ...
Monitoring network traffic & bandwidth usage via Netflow is mandatory for any type and size network. Gaining visibility into user traffic, appl...
In our previous article we explained how a Netflow Analyzer can help you gain visibility into your user traffic, application traffic and data flows...

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VLAN Networks
We hear about them everywhere, vendors around the world are constantly trying to push them into every type of network and as a result, the Local Area Ne...
VLAN Networks
This article deals with the popular topic of InterVLAN routing, which is used to allow routing & communication between VLAN networks. Our article an...
VLAN Networks
We mentioned that Trunk Links are designed to pass frames (packets) from all VLANs, allowing us to connect multiple switches together and independently ...
VLAN Networks
Dynamic VLANs were introduced to grant the flexibility and complexity(!) that Static VLANs did not provide. Dynamic VLANs are quite rare because of thei...

Routing
Our previous article explained the purpose of Link State Update (LSU) packets and examined the Link State Advertisement (LSA) information contained with...
Routing
Hybrid routing protocols are a combination of distance-vector and link-state routing protocols, and are used to provide a more efficient and scala...
Routing
IGRP (Interior Gateway Routing Protocol) is a Cisco proprietary distance-vector routing protocol used in enterprise networks to exchange routing informa...
Routing
Link State routing protocols do not view networks in terms of adjacent routers and hop counts, but they build a comprehensive view of the overall networ...

Cisco Firewalls
This article explains how to configure a Cisco Firepower 2100 series device to operate in Appliance mode. We’ll show you how to switch from Platform mod...
Cisco Routers
In our article Cisco VPN Client Configuration - Setup for IOS Router  we explained how to setup up a Cisco IOS router to support Cisco IPSec VPN cl...
Windows Servers
In this article we will show you how to enable the ‘Web Server’ certificate template option on a Windows Certification Authority (Windows CA) Server.&nb...
Cisco Firewalls
Cisco’s Adaptive Security Appliance (ASA) Firewalls are one of the most popular and proven security solutions in the industry. Since the introduction of...