Intermediate Topic 24 of 50 Computer Networks
Sliding Window Protocol
Allowing multiple outstanding unacknowledged packets.
How it works
The sender may have up to a window of unacknowledged packets in flight, sliding forward as ACKs arrive; Go-Back-N resends all after a loss, Selective Repeat resends only missing ones.
Where it is used
Maintaining throughput on long-delay links.
Common pitfall
The window must be at least bandwidth × delay to fill a pipe.
Where it fits in the course
Sliding Window Protocol is topic 24 of 50 in Computer Networks, rated Intermediate. It follows Congestion Control. The next topic is Error Detection and Correction.
Practice and explore
- Open the interactive lesson, with a mini quiz.
- Take the Computer Networks quiz.
How to study this topic
- Read the explanation above and restate the definition in your own words.
- Open the interactive lesson and answer its mini quiz.
- Read the common pitfall, then write a short example that avoids it.
- Check your understanding in the Computer Networks quiz, and revisit the topic if you miss a question.
Frequently asked questions
What is Sliding Window Protocol?
Allowing multiple outstanding unacknowledged packets. It belongs to Computer Networks and is an intermediate-level topic.
Where do people use Sliding Window Protocol?
Maintaining throughput on long-delay links.
What is the most common mistake with Sliding Window Protocol?
The window must be at least bandwidth × delay to fill a pipe.
What should I learn before this topic?
Start with Congestion Control, the topic just before it in Computer Networks.
How can I practice it?
Answer the mini quiz in the interactive lesson, then take the Computer Networks quiz.
Is Sliding Window Protocol hard to learn?
It is an Intermediate topic. Be comfortable with the Beginner topics in this area first, then read the common pitfall carefully, since it is where most mistakes happen.
How long does it take to learn Sliding Window Protocol?
Most learners can read the explanation and finish the interactive lesson in under an hour. Fluency comes from applying the idea, so plan a few short practice sessions with the quiz.
Which topics are related to Sliding Window Protocol?
Congestion Control, Error Detection and Correction, Flow Control are closely connected. The full list is in the related topics section of this page.
What should I study after Sliding Window Protocol?
Continue with Error Detection and Correction, the next topic in Computer Networks.
Related topics
- Congestion Control (Computer Networks)
- Error Detection and Correction (Computer Networks)
- Flow Control (Computer Networks)
- CRC (Computer Networks)
- Sliding Window (Algorithms)
- Window Functions (Databases)
- Cryptographic Protocol Design (Security & Cryptography)