Author: Rajil TL

Rajil TL is a SenseCentral contributor focused on tech, apps, tools, and product-building insights. He writes practical content for creators, founders, and learners—covering workflows, software strategies, and real-world implementation tips. His style is direct, structured, and action-oriented, often turning complex ideas into step-by-step guidance. He’s passionate about building useful digital products and sharing what works.

Basics

Ethernet

We now turn to a deeper analysis of the ubiquitous Ethernet LAN protocol. Current user-level Ethernet today (2013)…

July 21, 2021 · Rajil TL

Basics

IETF and OSI

The Internet protocols discussed above are defined by the Internet Engineering Task Force, or IETF (under the aegis…

July 21, 2021 · Rajil TL

Basics

Some Useful Utilities

There exists a great variety of useful programs for probing and diagnosing networks. Here we list a few…

July 21, 2021 · Rajil TL

Basics

Firewalls

One problem with having a program on your machine listening on an open TCP port is that someone…

July 21, 2021 · Rajil TL

Basics

Content-Distribution Networks

Sites with an extremely large volume of content to distribute often turn to a specialized communication pattern called…

July 21, 2021 · Rajil TL

Basics

Transport Communications Patterns

The two “classic” traffic patterns for Internet communication are these: • Interactive or bursty communications such as via…

July 21, 2021 · Rajil TL

Basics

Transport

The IP layer gets packets from one node to another, but it is not well-suited to transport. First,…

July 21, 2021 · Rajil TL

Basics

The Future of IPv4

As mentioned earlier, allocation of blocks of IP addresses is the responsibility of the Internet Assigned Numbers Authority.…

July 21, 2021 · Rajil TL

Basics

IP Forwarding

IP routers use datagram forwarding, to deliver packets, but the “destination” values listed in the forwarding tables are…

July 21, 2021 · Rajil TL

Basics

IP – Internet Protocol

To solve the scaling problem with Ethernet, and to allow support for other types of LANs and point-to-point…

July 21, 2021 · Rajil TL