Bug 1333

Summary: Wrong initial estimation after reset in RttEstimator
Product: ns-3 Reporter: Alex Afanasyev <alexander.afanasyev>
Component: tcpAssignee: Adrian S.-W. Tam <adrian.sw.tam>
Severity: normal CC: ns-bugs, tommaso.pecorella
Priority: P5    
Version: ns-3-dev   
Hardware: All   
OS: All   
See Also: https://www.nsnam.org/bugzilla/show_bug.cgi?id=1351
Bug Depends on: 1351    
Bug Blocks:    
Attachments: Patch

Description Alex Afanasyev 2012-01-03 14:00:48 EST
Upon reset, initial estimation in RttEstimator is set to 1ns.  As a result, on large-RTT links (>minRTT) there is always timeout, real RTT is never calculated, and congestion window cannot grow beyond initial value.

The following patch introduces a new variable to remember the initial estimate configured by ns-3 object system
Comment 1 Alex Afanasyev 2012-01-03 14:01:22 EST
Created attachment 1295 [details]
Comment 2 Adrian S.-W. Tam 2012-01-03 14:39:29 EST
Confirm about this bug. I will post here again when the bug is fixed in ns-3-dev tree.
Comment 3 Tommaso Pecorella 2012-03-21 13:54:01 EDT

*** This bug has been marked as a duplicate of bug 1351 ***