computer science

Krishan Sabnani

Krishan Sabnani is a computer science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Krishan Sabnani rather than just read about it. In short: Krishan Sabnani (born 1954 in New Delhi) is an Indian-American networking researcher. He has made many seminal contributions to the Internet infrastructure design, protocol design, and wireless networks.

Key takeaways

Krishan Sabnani belongs to computer science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Krishan Sabnani to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Krishan Sabnani from memory before moving on to harder problems.

Reference excerpt

Krishan Sabnani (born 1954 in New Delhi) is an Indian-American networking researcher. He has made many seminal contributions to the Internet infrastructure design, protocol design, and wireless networks. Krishan (with T. V. Lakshman and T. Woo) made a breakthrough in Internet re-design. The main idea behind this work was to separate control functions and complex software from the forwarding portions on Internet routers. This work made it possible for forwarding technologies (e.g., different link layer and switching protocols) to evolve and be deployed independently from control protocols (e.g., routing, security). This contribution is a precursor to the current Software Defined Networking (SDN) revolution. A patent based on this work won the 2010 Edison Patent Award. Krishan received his undergraduate degree in electrical engineering from the Indian Institute of Technology (IIT), Delhi. He completed his PhD in reliable multicasting at Columbia University. Upon his graduation from Columbia University in 1981, Krishan joined Bell Labs, Murray Hill, New Jersey, as a member of technical staff and was promoted to department head in 1993. He was named VP of networking research in 2000. Krishan was vice president of networking research at Bell Labs from Jan. 2000 to Sept. 2013. In that role, he managed all networking research in Bell Labs, comprising nine departments in seven countries: USA, France, Germany, Ireland, India, Belgium, and South Korea. Krishan retired from Bell Labs in Jan 2017. He received an award upon his retirement - appointment as Ambassador-at-large for Bell Labs. Krishan is the first person to receive this award. Krishan is currently a Professor of Computer Science at Johns Hopkins University. He is also a part-time chief technologist at CACI.

Honors and awards Member, National Academy of Engineering Fellow, National Academy of Inventors Ambassador-at-large for Bell Labs 2005 IEEE Eric E. Sumner Award 2005 IEEE W. Wallace McDowell Award. The 2005, 2009 and 2010 Thomas Alva Edison Patent Awards from the R&D Council of New Jersey. Inducted into the NJ Inventors of Fame in 2014 Bell Labs Fellow, Fellow of the Institute of Electrical and Electronics Engineers (IEEE) and Fellow of the Association for Computing Machinery (ACM). 2005 Distinguished Alumni Award from Indian Institute of Technology, New Delhi, India. 1991 Leonard G. Abraham Prize Paper Award from the IEEE Communications Society for "Design and Implementation of a High-Speed Transport Protocol," published in IEEE Trans. on Communications, Nov. 1990. President of India's Gold Medal, 1975 . Institution of Engineers (India) Gold Medal, 1975.

References

Worked examples

Example 1 — a first encounter with Krishan Sabnani

Start with the simplest possible case. Write down what Krishan Sabnani claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Krishan Sabnani before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Krishan Sabnani ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Krishan Sabnani

In research: Krishan Sabnani appears in computer science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Krishan Sabnani in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Krishan Sabnani is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1954 births, 21st-century Indian people, American people of Sindhi descent, so understanding it makes those chapters shorter.
In everyday life: Look for Krishan Sabnani outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Krishan Sabnani in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Krishan Sabnani means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Krishan Sabnani out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Krishan Sabnani in simple terms?

Why does Krishan Sabnani matter?

Because it connects several computer science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Krishan Sabnani?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Krishan Sabnani.