What Are Fiber Optic Attenuators?
A fiber optic attenuator, also called an optical attenuator, simulates the loss the would be caused by a long length of fiber. For a fiber optic receiver, too much light can overload it and degrade the bit error ratio. 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 is an Ethernet Bridge?
Bridges are used to divide larger networks into smaller sections. A bridge reads a frame's MAC address, and decides to either forward or filte the frame from crossing the bridge to the other part of the network. More ...
Static Versus Dynamic Routing
Routers direct traffic between networks or subnetworks. With static routing a network administrator manually creates the router's routing table. With dynamic routing the router learn about networks use routing protocols like RIP, RIP2, EIGRP, OSPF, or BGP. More ...
Fiber Media Converter - What's the Use and How to Choose It
Fiber media converters are used to convert electrical signal to light signal and vice versa. They are basically used as network extenders to extend the distance from several hundreds of feet to several thousands meters. More ...
Introduction to ATM (Asynchronous Transfer Mode) Networks
ATM (Asynchronous Transfer Mode) is a network technology to provide broadband services for the transmission of voice, video, and data at speeds up to 1Gbps. More ...
Proxy Servers
With a proxy server, instead of connecting directly to a server that can fulfill a requested resource, such as a file or web page, the client directs the request to the proxy server, which evaluates the request and performs the required network transactions. More ...
ISP Multihoming Explained
Multihoming is essentially a method whereby a company can connect to more than one ISP at the same time. The concept was born out of the need to protect Internet access in the event of either an ISP link failure or an ISP internal failure. More ...
Six Things You Must Know About Fiber Optic Cable Materials
Outdoor fiber cables must endure harsh environment factors so outdoor cables must be strong, weatherproof and UV resistant. Indoor fiber cables should possess NEC required fire and smoke ratings. More ...
Understanding the Basics of All-Optical Switching
All-optical switching is a process by which light in the form of digital communication signals is routed from one transmission channel to another without intermediate conversion to another format. More ...
Network Hubs
A hub lives at Layer 1 of the OSI model, so it does not make forwarding decisions. Instead, a hub receives bits on one port and then retransmits those bits out all other ports. Because of this a hub is sometimes called a repeater. More ...
An introduction to Linux Network Routing
Routing is where routers select the paths for packets to travel from their source to their destination. The process performed by a router directs forwarding by the use of of routing tables. More ...
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 ...
