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In this problem, v congestion detecti

In this problem, v congestion detecti

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Question 2 please (a,b,c,d included)

### Educational Content on TCP Congestion Control for Networking #### TCP Basic Congestion Control Algorithm 1. **TCP Congestion Control Using Slow Start and Congestion Avoidance:** - **Assumptions:** Packet dropping probability \( p \) is constant and independent of window size. - **Tasks:** a. Determine the mean time until another packet drop when the window size at packet drop is \( W \). b. Calculate the mean number of bytes transmitted given \( B \) bytes per packet during the above interval. 2. **Window Reduction Strategies for Congestion Recovery:** - **Scenario:** Analyze a TCP session where a router becomes saturated at window size \( W \), with round trip time \( R \). - **Assumptions:** Buffer capacity is \( B \), and TCP increases linearly by one segment every round trip. - **Questions:** a. Calculate the number of round trip times needed for a packet to be dropped and the TCP window size at that point. b. Find the time for the router to unsaturate with linear window reduction (reduction by \( A \) packets per drop). c. Repeat part b using geometric window reduction (window reduced by \( B \times W \)). d. Indicate the preferred strategy using numerical examples as needed. 3. **Comparison of SCTP and MPTCP Protocols:** - **Task:** Using a list or table, compare SCTP and MPTCP focusing on their capabilities and limitations. - **Objective:** Conclusions on superiority of one protocol over the other. 4. **Fragmentation in IPv6 vs. IPv4:** - **Context:** IPv6 moves fragmentation to end nodes, unlike IPv4. - **Implications:** Reduced internal processing; potential bandwidth increase. - **Task:** Calculate overhead bits for both IPv4 and IPv6 for packets having the initial size \( \text{MTU}_1 \), traversing \( N \) networks. This content explores TCP's congestion control mechanisms, assesses window reduction strategies, compares advanced transport protocols, and investigates fragmentation differences across IP versions, providing critical insights and problem-solving scenarios for networking students and professionals.
Transcribed Image Text:### Educational Content on TCP Congestion Control for Networking #### TCP Basic Congestion Control Algorithm 1. **TCP Congestion Control Using Slow Start and Congestion Avoidance:** - **Assumptions:** Packet dropping probability \( p \) is constant and independent of window size. - **Tasks:** a. Determine the mean time until another packet drop when the window size at packet drop is \( W \). b. Calculate the mean number of bytes transmitted given \( B \) bytes per packet during the above interval. 2. **Window Reduction Strategies for Congestion Recovery:** - **Scenario:** Analyze a TCP session where a router becomes saturated at window size \( W \), with round trip time \( R \). - **Assumptions:** Buffer capacity is \( B \), and TCP increases linearly by one segment every round trip. - **Questions:** a. Calculate the number of round trip times needed for a packet to be dropped and the TCP window size at that point. b. Find the time for the router to unsaturate with linear window reduction (reduction by \( A \) packets per drop). c. Repeat part b using geometric window reduction (window reduced by \( B \times W \)). d. Indicate the preferred strategy using numerical examples as needed. 3. **Comparison of SCTP and MPTCP Protocols:** - **Task:** Using a list or table, compare SCTP and MPTCP focusing on their capabilities and limitations. - **Objective:** Conclusions on superiority of one protocol over the other. 4. **Fragmentation in IPv6 vs. IPv4:** - **Context:** IPv6 moves fragmentation to end nodes, unlike IPv4. - **Implications:** Reduced internal processing; potential bandwidth increase. - **Task:** Calculate overhead bits for both IPv4 and IPv6 for packets having the initial size \( \text{MTU}_1 \), traversing \( N \) networks. This content explores TCP's congestion control mechanisms, assesses window reduction strategies, compares advanced transport protocols, and investigates fragmentation differences across IP versions, providing critical insights and problem-solving scenarios for networking students and professionals.
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