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soc:nikhil:under_construction [2006/06/13 23:54]
nikhilcrao
soc:nikhil:under_construction [2006/06/15 06:31]
nikhilcrao
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-====== Implementing IPv6 support in gPXE ====== 
  
-===== About the project ===== 
-My project is titled Implementing IPv6 support in gPXE. Here are some snippets from [[soc:​nikhil:​proposal|my proposal]]. 
- 
-==== Synopsis ==== 
-gPXE uses uIP to implement its TCP/IP stack. uIP is an implementation of the TCP/IP stack which uses a fraction of the resources used by a full fledged TCP/IP implementation. 
- 
-The project is to implement support for IPv6. uIP (in its current avatar) tightly integrates the TCP and IP layers in order to save code size. As a result, it is not easy to replace IPv4 with any other network layer protocol in uIP. This project aims to re-design the TCP/IP stack of gPXE in order to facilitate IPv6 implementation. 
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-==== Deliverables ==== 
-The final deliverables for the project are: 
-  - A clean, well-defined interface between the transport-layer and network-layer. The interface would be generic enough to allow any transport layer protocol to interact with any network layer protocol 
-  - Re-design and implementation of the TCP/IP stack using the proposed interface (which fits within the gPXE API) 
-  - Minimal support for IPv6 
- 
-The stretch goals for the project are: 
-  - Extension of the gPXE API to include UDP 
-  - An implementation of UDP/IP (within the extended gPXE API) 
-  - Support for additional features in IPv6 
- 
-==== Plan of action ==== 
- 
-Main goals: 
-  - <​del>​Investigate the working of uIP</​del>​ 
-  - <​del>​Define bare necessary requirements of transport layer and network layer</​del>​ 
-  - <​del>​Define the interface between these layers based on the requirements</​del>​ 
-  - Implement the TCP, IP modules using the interface 
-  - Test implementation;​ Re-implement if necessary 
-  - Increase requirements if necessary and go back to step 2 
-  - Investigate minimum requirements to support IPv6 
-  - Extend interface/​requirements if necessary and go back to step 2 
-  - Implement IPv6 
-  - If time permits, implement stretch goals 
- 
- 
-Stretch goals: 
-  - Investigate UDP implementation in Etherboot-5.4 and earlier 
-  - Extend interface/​requirements if necessary and perform steps 2 - 5 
-  - Implement UDP support 
-  - Investigate various features that can be added to IPv6 
-  - Perform steps 7 - 8 
- 
-===== Current status ===== 
- 
-I have tried to update my blog ss frequently as possible with my thoughts. I have listed below my understanding of the problem. 
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-==== Working of the network infrastructure ==== 
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-=== Receiving data === 
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-=== Sending data === 
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-=== So, what's wrong? === 
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-==== Redesigning the IP layer ==== 
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-=== IPv4 === 
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-=== IPv6 === 
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-==== Redesigning the transport layer ==== 
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-=== UDP === 
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-=== TCP === 
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-===== The road ahead ===== 
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-==== Ideas and concepts ==== 
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-==== To do list ==== 
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-===== Resources ===== 
- 
-  * [[http://​implementingipv4.blogspot.com|My blog]] 
-  * [[http://​www.sics.se/​~adam/​uip/​|uIP Project Page]] 
-  * [[http://​playground.sun.com/​pub/​ipng/​html/​ipng-main.html|IPv6 resources on sun.com]] 

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