In this post, let us look at the factors that a company needs to consider before deciding on whether they should host their email server in-house or outsource it to an external service provider. Factors/ Parameters to consider before deciding on Hosting Email Server In-House vs Hosting Email Server with an external Service Provider:... »
What are PRI Cards & Analog Interface Cards – Connectivity & Architecture Diagram
While there are lot of advantages of moving to VOIP/ IP Telephony Systems, there are invariably some analog connections that are required to be interfaced to the IP world. One might want to connect their PRI Lines, Analog Trunk Lines, Analog Phones (Extensions), Fax machines, etc to their IP PBX/ IP Telephony Systems. In... »
What are: Network Ports, TCP & UDP
Network Ports: When one computing device wants to communicate with a remote computing device, it needs two important parameters to reach and communicate with it. First, it needs the IP address of the remote computing device so that it can locate it over WAN / Internet, and it also needs to know the specific... »
Computer Networking blog – excITingIP.com
There are numerous blogs on various topics out there, but very few of them focus on the Computer Networking domain. excITingIP.com is not only a Computer Networking Blog but we also discuss about related enterprise IT technologies, here. »
An overview of Server Input-Output Virtualization (IOV)
IOV or Server Input - Output Virtualization is a technology that enables the Input/Output Interface components like NIC/HBA to be removed from physical servers and consolidated using a separate device. Let us look at the need, definition and advantages of IOV/ Input-Output Virtualization, in this article. »
An Introduction to IEEE 802.3az – Energy Efficient Ethernet
Energy/ Power conservation in Network devices has got a serious push with the introduction of IEEE 802.3az Standard, also called as Energy Efficient Ethernet. Let us learn more about what is IEEE 802.3az/ Energy Efficient Ethernet and how it can save power, in this article. »
Funny Sunday Video: Hitler & Computer Networking tutorial
It seems, this Hitler video is the most adapted parody video on Youtube. Someone with a good sense of humor has come up with interesting subtitles applicable to computer networking! Of course, the original German dialogues are serious, but people have mocked this particular video clip to no end. »
You can use Optical Taps to monitor Fiber Cables/ Optical Network
Optical Taps are passive devices that enable one to monitor Optical fiber links to identify faults & help trouble shoot an Optical network. They are generally placed in-line (in-between) the two devices that are connected with an optical fiber cable. Let us learn more about Optical Taps, in this article. »
What is a Trojan Horse in Computer Networks and how to protect yourself from it?
A Trojan Horse is a computer program that is attached to a genuine program / gets disguised as a genuine program to install a back-door to the user computer (enabling the attacker to take control of it) when the user runs this program. They can be found in updates, free softwares and even pirated... »
An introduction to Zigbee / IEEE 802.15.4 Wireless Network
Zigbee or 802.15.4 is a wireless network standard to create a wireless network using low cost, low power consumption & low data rate connectivity devices. It can beat your Wi-Fi networks hands down for certain applications like industrial automation, medical patient monitoring, etc due to its prominent features. Let us find out what they... »
Video: Testing Routers for Physical Durability – Oh! :)
This interesting video shows a Cisco router being tested for durability by, lets say - not so soft methods. Not sure if it works after all that but at least it doesn't break into pieces! »
What is FTTH – Fiber To The Home & Advantages of P2P vs P2M/PON Architectures
Enterprise Fiber Networks seem to get the raw deal these days! Fiber To The Home (FTTH) can get Fiber Cable up to the Desk of a person accessing Internet at home & they can send and receive signals on the same fiber strand! Let us take a closer look at the two popular architectures... »


