Basics of Current Internet Technologies
Generally, how the internet works is all the same. The salient differences of fast Ethernet, gigabit Ethernet and metro Ethernet, for example, exists mainly in the number of channels that each can carry and the bandwidth for transmitting frames (data).
Digital subscriber line (DSL) is the most basic service from an ISP and relies on traditional telephone lines for data transmission. Typically, DSL is mostly limited to home use because of its minimal bandwidth. A leased T1 line has a bandwidth of about 1.544 Mbps; a PRI T1 line is based on the traditional T1 infrastructure but is used to provide digital access for Public Switched Telephone Networks (PSTN); and a leased T3 line has 44.736 Mbps. Ethernet over copper cables, which can handle somewhere between 50 to 100 Mbps for downloading and 2 to 10 Mbps for uploading, work sufficiently for shared bandwidth usage within an office. Ethernet over fiber connections have normally been used as a backbone system, but have recently also been implemented on the end-user side.
Metro Ethernet (metropolitan-area Ethernet), on a broader scale, provides internet connection for a vast number of subscribers. Out of the several ways to establish a link, it utilizes the Multi Protocol Label Switching technique (MPLS) the most. Inadvertently, the MPLS eventually employs a Virtual Private LAN Service (VPLS).
All these techniques and technologies did not develop overnight; it took them a long time take the shape they are in today. As a matter of fact, every passing day further adds to the number of internet connectivity solutions. There is nothing that should sound better than this, but this also leads many individuals and businesses to confusion as not everyone can be tech savvy.
This is where businesses need appropriate consultation and expertise or all of this might lead them backwards instead of leaping forward, unleashing different types of hindrances and barriers upon them. Though individual users also need to make the right choice in this regard, but repercussions of their decisions are not of the mammoth magnitude as in case of medium or large sized business setups.
Considering all such factors, it becomes inevitable for businesses to be critically accurate in their decision for the type of Metro Ethernet services they choose to serve their communication needs. While doing so, another important factor that needs consideration is the future compatibility of internet service with growing needs and structure of a business.