Data Rate Between B & C for Node Flood Prevention

In summary, the minimum data rate required between Nodes B and C to avoid flooding the buffers of Node B is determined based on a communication system with a distance of 400 km between Node A and Node B, and 1000 km between Node B and Node C. The data rate between A and B is 1000 kb/s, with a propagation delay of 5μs/km for both lines. Full-duplex lines are used between the nodes, with all data frames being 1000 bits long and separate ACK frames of negligible length. A sliding window protocol with a window size of 3 is used between A and B, while stop-and-wait is used between B and C. No errors are present and the average
  • #1
bos1234
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This is a question from a past exam paper I have.

In a communication system the distance between Node A and Node B is 400 km. The distance between Node B and Node C is 1000 km. Frames are generated at Node A and sent to Node C through Node B. Determine the minimum data rate required between Nodes B and C so that buffers of Node B are not flooded, based on the following: The data rate between A and B is 1000 kb/s. The propagation delay is
5μs/km for both lines. There are full-duplex lines between the nodes. All data frames are 1000 bits long. ACK frames are separate frames of negligible length. Between A and B, a sliding window protocol with a window size of 3 is used. Between B and C, stop-and-wait is used. There are no errors. Hint. In order not to flood the buffers of B, the average number of frames entering and leaving B must be the same over a long interval.
 
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  • #2
bos1234 said:
This is a question from a past exam paper I have.

In a communication system the distance between Node A and Node B is 400 km. The distance between Node B and Node C is 1000 km. Frames are generated at Node A and sent to Node C through Node B. Determine the minimum data rate required between Nodes B and C so that buffers of Node B are not flooded, based on the following: The data rate between A and B is 1000 kb/s. The propagation delay is
5μs/km for both lines. There are full-duplex lines between the nodes. All data frames are 1000 bits long. ACK frames are separate frames of negligible length. Between A and B, a sliding window protocol with a window size of 3 is used. Between B and C, stop-and-wait is used. There are no errors. Hint. In order not to flood the buffers of B, the average number of frames entering and leaving B must be the same over a long interval.

How would you approach the problem? Remember, you are required to do the bulk of the work on your question...
 

Related to Data Rate Between B & C for Node Flood Prevention

1. What is data rate and how does it affect node flood prevention?

Data rate refers to the amount of data that can be transferred between two points in a given period of time. In the context of node flood prevention, a higher data rate means that more data can be transferred between nodes, potentially leading to faster and more efficient communication and prevention of network congestion.

2. How does the data rate between nodes B and C impact flood prevention in a network?

The data rate between nodes B and C is crucial in preventing network flooding because these nodes play a key role in the transmission of data. A higher data rate between these nodes means that information can be transmitted more quickly and efficiently, reducing the risk of network congestion and data loss.

3. What factors influence the data rate between nodes B and C?

The data rate between nodes B and C can be influenced by a variety of factors, including the distance between the nodes, the quality of the network connection, the hardware and software used, and the amount of data being transmitted.

4. How can the data rate between nodes B and C be optimized for better flood prevention?

To optimize the data rate between nodes B and C, it is important to ensure that the network connection is stable and high-quality. This can be achieved by using reliable hardware and software, maintaining proper network infrastructure, and monitoring and adjusting the data flow between the nodes as needed.

5. Are there any limitations to increasing the data rate between nodes B and C for flood prevention?

While increasing the data rate between nodes B and C can be beneficial for flood prevention, there are limitations to consider. For example, increasing the data rate may require additional resources and can potentially lead to higher costs. Additionally, there may be physical limitations or technical constraints that prevent the data rate from being increased beyond a certain point.

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