Informational and educational articles exploring various networking and telecommunications topics.
Introduction In this article we will be discussing optical multiplexers. Optical multiplexers were the successor to lower-bandwidth copper based T1 and T3 multiplexers. I discuss T-Carrier and FDM multiplexers in this previous article: How Telecom Multiplexers Work: From FDM to T1 and T3. What is SONET/SDH? SONET stands for Synchronous Optical Networking. It is also … Read more
A Broadband Remote Access Server or Broadband Netwok Gateway (BRAS/BNG) is a key component of an Internet Service Provider’s network. Let’s take a look at what exactly a BRAS/BNG is and how it works.
In this two part article we’ll explore the history of the multiplexer, how it works, and why it is the backbone of provider networking.
VPWS and VPLS are both Layer 2 VPN technologies that carriers can use to transport Ethernet over an MPLS core. In this article we’ll look at the similarities and differences between the two.
Introduction The concept of a leased line, where a customer pays a service provider for a private WAN connection predates computer networking. In fact, the origins of the leased line were in the telegraph days. Over the years the term has been used to describe a multitude of different services. It’s easy to confuse different … Read more
Route reflectors are a key component of service provider network design. I’ll be explaining the purpose of route reflectors in this article
This post explains why we need Route Distinguishers and Route Targets and what makes them different.
