tasklwIP - A Lightweight TCP/IP stack - Tasks: task #14602, TCP: update/audit congestion...

 
 

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task #14602: TCP: update/audit congestion control implementation

Submitted by:  Joel Cunningham <jcunningham>
Submitted on:  Wed 09 Aug 2017 09:42:14 PM UTC  
 
Category:  TCP Should Start On:  Wed 09 Aug 2017 12:00:00 AM UTC
Should be Finished on:  Wed 09 Aug 2017 12:00:00 AM UTC Priority:  5 - Normal
Status:  None Privacy:  Public
Percent Complete:  0% Assigned to:  None
Open/Closed:  Open Planned Release:  None
Effort:  0.00

Wed 09 Aug 2017 09:42:14 PM UTC, original submission:

LwIP's TCP congestion control implementation was written back with RFC 2001 (1997), which has had two replacements: RFC 2581 (1999) and RFC 5681 (2009)

One thing that I know is out-of-date is setting ssthresh after a loss detection. We have the original logic from RFC 2001 which is:

RFC 2581 updated this to (and I believe is still current in RFC 5681):

Fast Retransmit

Joel Cunningham <jcunningham>
Project Member

 

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