In a recent LinkedIn post, Chirag Goswami dives into the fundamental differences between TCP and UDP, two core transport-layer protocols, and explains why understanding their distinct purposes is crucial for building efficient and reliable digital systems.
Chirag Goswami emphasizes that while both protocols operate at the transport layer, they are engineered for fundamentally different use cases. He highlights the trade-offs between reliability and speed, which dictate their optimal applications.
“TCP and UDP are core transport-layer protocols, but they’re designed for very different purposes. Knowing when to use each one is key to building reliable and high-performance systems.”
Understanding TCP: The Reliability Champion
Chirag Goswami details Transmission Control Protocol (TCP) as the protocol built with reliability as its paramount concern. He explains that TCP is connection-oriented, meaning it establishes a connection before data transmission and ensures that data packets arrive completely, in the correct order, and without errors. This meticulous approach makes it the go-to choice for applications where data integrity is non-negotiable.
According to Chirag Goswami, common applications for TCP include:
- Web browsing
- File transfers
He points out that TCP’s reliability comes with a trade-off: a larger header size compared to UDP. However, this is justified by its features such as guaranteed delivery, packet ordering, flow control, and retransmissions, all of which contribute to its robust nature.
Exploring UDP: The Speed-Focused Alternative
In contrast, Chirag Goswami presents User Datagram Protocol (UDP) as a protocol engineered for speed and minimal latency. He notes that UDP achieves its speed by foregoing the connection setup and error correction mechanisms inherent in TCP. This makes it less concerned with guaranteed delivery or order, prioritizing swift data transmission over absolute accuracy.
Chirag Goswami identifies UDP as ideal for real-time applications where slight data loss or out-of-order packets are less critical than maintaining a smooth, uninterrupted flow. These use cases include:
- Video streaming
- Voice calls
- Online gaming
The advantage of UDP, as explained by Chirag Goswami, lies in its smaller, lightweight header and lower overhead, resulting in faster transmission speeds. He states:
“UDP… skips connection setup and error correction to minimize latency. Ideal for real-time use cases like video streaming, voice calls, and online gaming—where speed matters more than perfection.”
Delivery Modes and Strategic Importance
Beyond the core differences, Chirag Goswami also touches upon delivery modes, noting that both TCP and UDP support unicast (one-to-one) communication. However, he points out that multicast and broadcast (one-to-many) communication are more commonly associated with UDP, further leveraging its efficiency for broader data distribution.
The strategic importance of choosing the correct protocol is a central theme in Chirag Goswami’s post. He argues that selecting the wrong protocol can have significant negative consequences on network performance, overall reliability, and the end-user experience.
“Choosing the wrong protocol can impact performance, reliability, and user experience.”
Chirag Goswami concludes by mentioning that his company, Cybernara, assists businesses in designing network architectures that effectively balance speed, security, and resilience, underscoring the practical application of these technical distinctions. He encourages businesses to connect for network optimization.
📝 About This Content
This article is based on insights shared by Chirag Goswami on LinkedIn.
📅 Originally posted on January 24, 2026 | View original post on LinkedIn →