Difference between revisions of "GSOC2019TCPTestingAndAlignment"
Line 35: | Line 35: | ||
= Weekly Plan = | = Weekly Plan = | ||
− | === Community Bonding Period === | + | === Community Bonding Period (6 May - 26 May 2019) === |
* Contact the mentors and update weekly plan according to their suggestions. | * Contact the mentors and update weekly plan according to their suggestions. | ||
* Setting up a git repository for the project. | * Setting up a git repository for the project. | ||
Line 41: | Line 41: | ||
* Work on the alignment of PRR as it the default recovery algorithm in Linux. | * Work on the alignment of PRR as it the default recovery algorithm in Linux. | ||
− | === Week 1 | + | === Week 1 (27 May - 2 June 2019) === |
* Start understanding the codebase of ECN in ns-3 as well as in Linux. | * Start understanding the codebase of ECN in ns-3 as well as in Linux. | ||
* Document the differences observed in ECN code of ns-3 and Linux. | * Document the differences observed in ECN code of ns-3 and Linux. | ||
− | === Week 2 | + | === Week 2 (3 June - 9 June 2019 ) === |
* Align the differences found in ECN and validate the implementation in dumbbell topology using DCE. | * Align the differences found in ECN and validate the implementation in dumbbell topology using DCE. | ||
− | === Week 3 | + | === Week 3 (10 June - 16 June 2019) === |
* Validate Data Center TCP in data center topology using DCE. | * Validate Data Center TCP in data center topology using DCE. | ||
− | === Week 4 | + | === Week 4 (17 June - 23 June 2019) === |
* Start understanding the codebase of SACK in ns-3 as well as Linux. | * Start understanding the codebase of SACK in ns-3 as well as Linux. | ||
* Document the differences observed. | * Document the differences observed. | ||
− | === Week 5 | + | === Week 5 (24 June - 30 June 2019) === |
* Align the differences found in SACK and validate the implementation using DCE. | * Align the differences found in SACK and validate the implementation using DCE. | ||
− | === Week 6 | + | === Week 6 (1 July - 7 July 2019) === |
* Study the codebase of DSACK in ns-3 and Linux. | * Study the codebase of DSACK in ns-3 and Linux. | ||
* Document the differences observed. | * Document the differences observed. | ||
− | === Week 7 | + | === Week 7 (8 July - 14 July 2019) === |
* Align the differences found in DSACK and validate the implementation using DCE. | * Align the differences found in DSACK and validate the implementation using DCE. | ||
− | === Week 8 | + | === Week 8 (15 July - 21 July 2019) === |
* Study the codebase of RACK in ns-3 as well as in Linux. | * Study the codebase of RACK in ns-3 as well as in Linux. | ||
* Document the differences. | * Document the differences. | ||
− | === Week 9 | + | === Week 9 (22 July - 28 July 2019) === |
* Align the differences found in RACK and validate the implementation using DCE. | * Align the differences found in RACK and validate the implementation using DCE. | ||
− | === Week 10 | + | === Week 10 (29 July - 4 August 2019) === |
* Study the codebase of Paced Chirping in ns-3 as well as Linux. | * Study the codebase of Paced Chirping in ns-3 as well as Linux. | ||
* Document the differences. | * Document the differences. | ||
− | === Week 11 | + | === Week 11 (5 August - 11 August 2019) === |
* Align the differences found in Paced Chirping and validate the implementation using DCE. | * Align the differences found in Paced Chirping and validate the implementation using DCE. | ||
− | === Week 12 | + | === Week 12 (13 August - 19 August 2019) === |
* Submit all the required patches. | * Submit all the required patches. | ||
= Weekly Progress = | = Weekly Progress = |
Revision as of 18:23, 13 May 2019
Main Page - Current Development - Developer FAQ - Tools - Related Projects - Project Ideas - Summer Projects
Installation - Troubleshooting - User FAQ - HOWTOs - Samples - Models - Education - Contributed Code - Papers
Contents
- 1 Project Overview
- 2 Technical Approach
- 3 Milestones and Deliverables
- 4 Weekly Plan
- 4.1 Community Bonding Period (6 May - 26 May 2019)
- 4.2 Week 1 (27 May - 2 June 2019)
- 4.3 Week 2 (3 June - 9 June 2019 )
- 4.4 Week 3 (10 June - 16 June 2019)
- 4.5 Week 4 (17 June - 23 June 2019)
- 4.6 Week 5 (24 June - 30 June 2019)
- 4.7 Week 6 (1 July - 7 July 2019)
- 4.8 Week 7 (8 July - 14 July 2019)
- 4.9 Week 8 (15 July - 21 July 2019)
- 4.10 Week 9 (22 July - 28 July 2019)
- 4.11 Week 10 (29 July - 4 August 2019)
- 4.12 Week 11 (5 August - 11 August 2019)
- 4.13 Week 12 (13 August - 19 August 2019)
- 5 Weekly Progress
Project Overview
- Project Name: TCP Testing and Alignment
- Student: Apoorva Bhargava
- Mentors: Tom Henderson, Vivek Jain
- Abstract: This project aims at aligning the ns-3 TCP with Linux kernel to have a more realistic implementation of TCP in ns-3 with proper documentation of the differences. The features of TCP which will be aligned are ECN, RACK, SACK, DSACK, and Paced Chirping. To achieve this, ns-3 DCE (Direct Code Execution) will be used. DCE (Direct Code Execution) is a framework which allows the users to run kernel space protocol inside the ns-3 without changing the source code.
- Code: to be added
- About Me: I am a 2nd-year postgraduate student at National Institute of Technology, Karnataka India. I have worked on Implementation of TCP Jersey in ns-3 and Implementation Cautious Adaptive RED in ns-3 in my first year of postgraduate. Currently, I am working on Alignment and Validation of ns-3 TCP with Linux TCP using ns-3 Direct Code Execution framework (DCE).
Technical Approach
Many features of ns-3 TCP are aligned with RFCs but not with TCP implementation in Linux. The main goal of this project is to have Linux like TCP implementation in ns-3 and cover main components of TCP Prague i.e ECN, DCTCP, RACK and Paced Chirping. I have already done the alignment of Slow Start and Congestion Avoidance phase of ns-3 New Reno with Linux TCP Reno and validated it in simple dumbbell topology with one sender and one receiver using ns-3 DCE. Results can be found here. Currently, I am working on alignment of PRR recovery algorithm of ns-3 with Linux using ns-3 DCE as it is default recovery algorithm in Linux kernel. Further, I will work on the alignment of ECN followed by DCTCP, as DCTCP uses ECN feature of TCP in its algorithm. Next, I will cover the alignment of RACK which will also cover the alignment of SACK and DSACK as these two are the pre-requisites. Lastly, the alignment of Paced Chirping will be done. Validation of all the aligned features of ns-3 TCP will be done using ns-3 DCE and provide the proper documentation of all the differences. Also, if time permits I will try to align the ns-3 implementation of TCP Cubic and TCP BBR with Linux kernel.
Milestones and Deliverables
The entire GSoC will be divided into 2 phases and the deliverables at the end of each phase will be as follows:
Phase 1:
- Align Explicit Congestion Notification (ECN) implementation of ns-3 with Linux.
- Align Data Center TCP (DCTCP) implementation of ns-3 with Linux.
- Validate the alignment of ECN in dumbbell topology using ns-3 DCE.
- Validate the alignment of DCTCP in data center topology using ns3-DCE.
Phase 2:
- Align ns-3 implementation of Selective Acknowledgement (SACK) and Duplicate Selective Acknowledgement with Linux.
- Align ns-3 implementation of Recent Acknowledgement (RACK) with Linux.
- Validate the alignment of SACK, DSACK and RACK using ns-3 DCE.
- Align ns-3 implementation of Paced Chirping with Linux.
- Validate the alignment of Paced Chirping using ns-3 DCE.
Weekly Plan
Community Bonding Period (6 May - 26 May 2019)
- Contact the mentors and update weekly plan according to their suggestions.
- Setting up a git repository for the project.
- Get suggestions on the testing scenarios which will be used for the validation.
- Work on the alignment of PRR as it the default recovery algorithm in Linux.
Week 1 (27 May - 2 June 2019)
- Start understanding the codebase of ECN in ns-3 as well as in Linux.
- Document the differences observed in ECN code of ns-3 and Linux.
Week 2 (3 June - 9 June 2019 )
- Align the differences found in ECN and validate the implementation in dumbbell topology using DCE.
Week 3 (10 June - 16 June 2019)
- Validate Data Center TCP in data center topology using DCE.
Week 4 (17 June - 23 June 2019)
- Start understanding the codebase of SACK in ns-3 as well as Linux.
- Document the differences observed.
Week 5 (24 June - 30 June 2019)
- Align the differences found in SACK and validate the implementation using DCE.
Week 6 (1 July - 7 July 2019)
- Study the codebase of DSACK in ns-3 and Linux.
- Document the differences observed.
Week 7 (8 July - 14 July 2019)
- Align the differences found in DSACK and validate the implementation using DCE.
Week 8 (15 July - 21 July 2019)
- Study the codebase of RACK in ns-3 as well as in Linux.
- Document the differences.
Week 9 (22 July - 28 July 2019)
- Align the differences found in RACK and validate the implementation using DCE.
Week 10 (29 July - 4 August 2019)
- Study the codebase of Paced Chirping in ns-3 as well as Linux.
- Document the differences.
Week 11 (5 August - 11 August 2019)
- Align the differences found in Paced Chirping and validate the implementation using DCE.
Week 12 (13 August - 19 August 2019)
- Submit all the required patches.