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Articles That Might Interest:

IP Protocol
This article examines the Internet Protocol (IP) and its position within the OSI Model. We take a look at the IP Header and all fields contained within an Ethernet frame. Further examination of the I…
The OSI Model
The Application layer of the OSI model is where users communicate with the computer. The Application layer is responsible for identifying and establishing the availability of the intended communicati…
Cisco Wireless
This article covers the deployment of the Cisco WLC 9800-CL cloud-based controller on the VMware ESXi platform. We explain the CPU, RAM and storage requirements, provide URLs to easily download and i…
Cisco CallManager-CCME
Our previous article, Cisco CallManager Express Basic Concepts - Part 1 covered the very basic concepts of CCME and its operation. This article continues with the Cisco CallManager Express basic conc…
Ethernet Protocol, CSMA/CD, Collisions
The word "Collision" shouldn't be any new news to people who work with networks everyday. If it is thought, don't worrie, that's why you are here. A collision is an event that happens on an Ethernet…
Linux - Unix
The first question is - what are the benefits of using Linux instead of Windows? This is in fact a constant debate between the Windows and Linux communities and while we won't be taking either side…
Network Fundamentals
A network is simply a group of two or more Personal Computers linked together. Many types of networks exist, but the most common types of networks are Local-Area Networks (LANs), and Wide-Area Networ…
Cisco CallManager-CCME
The Cisco ATA 186 and 188 analog phone adaptor is very common amongst Cisco CallManager (CUCM) & Cisco CallManager Express (CUCME) installations. The ATA 186/188 provides two analog phone ports…
Cisco Routers
Some time ago, when broadband and ADSL wasn't available, analog and digital (ISDN) modems were the only way to connect to the Internet. Even though today ISDN isn't used much for Internet connectivit…
Subnetting
There are a few different ways to approach subnetting and it can get confusing because of the complexity of some subnets and the flexibility they offer. For this reason I created this little paragrap…
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 format, the LLC Header was added, making Novell's form…
Cisco Services & Technologies
It's been more than a year since we introduced the Cisco SmartCare service and appliance. It's been extremely popular and has successfully penetrated the Cisco market with installations continually i…

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