Cisco Switching Fundamentals
Newer switches now use ASICs (Application Specific Integrated Circuits) for high speed hardware switching of packets. This results in much faster performance than packets processed in software. More ...
Wireless Networks
A wireless LAN (WLAN or WiFi) provides network connectivity by using radio waves rather than cable. Wireless devices can communicate with each other or they can communicate through a wireless access point (WAP) to a wired network. More ...
What Are Fiber Optic Circulators?
An optical circulator is an nonreciprocal passive device that directs light sequentially from port to port in only one direction. The operation of a circulator is similar to that of an isolator except its constructions is more complex. More ...
Routing Technologies, Bandwidth Management and Traffic Shaping
Bandwidth is the overshadowing issue for most network quality problems. The response to that problem is often to add more bandwidth. However, more bandwidth often comes at a relativel high cost. More ...
Data Center Management Best Practices
The use of an integrated best practices approach to data center management involves efficient management of resources while still minimizing the costs of all the different interrelated competing factors that require attention. More ...
What is FTTP, FTTH, FTTB, and FTTD?
Some FTTx such as FTTN (fiber to the node), FTTC (fiber to the curb) depend on copper wires for final connection to the customers premises which contrasts with FTTP. FTTP can be further categorized into FTTH (fiber to the home), FTTB (fiber to the building), etc. More ...
Overview of How DNS (Domain Name System) Works
This article presents a high-level overview of how DNS works. it focuses on the hostname-to-IP-address translation service. More ...
Technologies for the Internet of Things (IoT)
Internet of Things (IoT) refers to the effort to connect everyday objects to the Internet in order to make them smart. Many wireless technologies are used to make IoT a reality. More ...
Distance Vector vs. Link State vs. Hybrid Routing
Routers direct traffic between networks or subnetworks to transport a packet to its destination. Distance Vector routing uses the hop count as its routing metric. Link State routing use statistics like distance, link speed, and traffic to calculate the cost of different routes through the Internet. More ...
Access Points and Wireless LAN Controller
An access point is a network device that creates a wireless LAN (WLAN) and might also connect to a wired router to allow wireless devices to connect to the wired LAN. More ...
What is an Ethernet Switch?
An Ethernet switch is a networking device that is able to interrogate the data within the Ethernet Frames to provide forwarding and filtering and loop avoidance. More ...
How to Choose the Proper Fiber Optic Connector for Your FTTH (Fiber To The Home) Installation
Fiber optic connectors can be divided into three groups: simplex, duplex and multiple fiber connectors. Simplex connector means only one fiber is terminated in the connector. Duplex connector means two fibers are terminated in the connector. More ...
Token Ring Network
In 1984 IBM invented Token Ring. The token ring network may be setup with a physical ring topology, but is usually implemented in a physical star topology. The central device of the token ring is called a Multistation Access Unit. More ...
