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Ethernet Protocol, CSMA/CD, Collisions
Integrating Fast Ethernet into 10MB Ethernet Netw…
Now that Fast Ethernet is here, the question becomes, "How do I start using it ?" Integrating Fast Ethernet into existing networks need not be done all at once.
Here are some aspects of 100Mbps impl…
Network Protocol Analyzers
Improve Network Analysis Efficiency with Colasoft…
Troubleshooting network problems can be a very difficult and challenging task. While most IT engineers use a network analyzer to help solve network problems, when analyzing hundreds or thousands of p…
Cisco CallManager-CCME
How to Enable & Disable Phone Port Lines on Cisco…
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…
The OSI Model
Data Encapsulation & Decapsulation in the OSI Mod…
Here we are going to explain in detail how data travels through the OSI model. You must keep in mind that the OSI model is a guideline. It tells the computer what it's supposed to do when data needs…
Virtualization & VM Backup
Understanding Deduplication. Complete Guide to De…
When considering your VM backup solution, key features such as deduplication are incredibly important. This is not simply from a cost perspective but also an operational one. While is it true that de…
Cisco CallManager-CCME
Risk Management for Cisco Unified Communication S…
As technology has advanced, things have become simpler yet more complex. One prime example is that of today’s communication networks. With the evolution of VoIP, the most obvious convergence is that…
TCP - UDP Protocol Analysis
Transmission Control Protocol - Part 4: In-Depth…
This article is an introduction to the 7-page TCP Header analysis section that follows. We briefly view each section of the TCP Header and then move on to its analysis using detailed colourful diagra…
Ethernet Protocol, CSMA/CD, Collisions
Manchester Signal Encoding
The device driver software receives a frame of IP, IPX, NetBIOS, or other higher-layer protocol data. From this data, the device driver constructs a frame, with appropriate Ethernet header informatio…
Cisco Firewalls
Converting Cisco Firepower from Platform mode to…
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 mode to Appliance mode and how the device will aut…
Windows Workstations (XP, 7, 8, 10, 11)
How to Join a Windows 8, 8.1 Client to Windows Do…
In this article, we will show how to add a Windows 8 or Windows 8.1 client to a Windows Domain / Active Directory. The article can be considered an extention to our Windows 2012 Server article coveri…
Windows Workstations (XP, 7, 8, 10, 11)
How to Enable Master Control Panel or Enable God…
Around 2007, an undocumented feature of Windows, called the God Mode, was published outside of documentation provided by Microsoft. This is the Windows Master Control Panel shortcut. Bloggers named i…
Cisco CallManager-CCME
Cisco CallManager Express Basic Concepts - Part 2
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…
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