Bug 1333 - Wrong initial estimation after reset in RttEstimator
Wrong initial estimation after reset in RttEstimator
Status: RESOLVED DUPLICATE of bug 1351
Product: ns-3
Classification: Unclassified
Component: tcp
All All
: P5 normal
Assigned To: Adrian S.-W. Tam
Depends on: 1351
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Reported: 2012-01-03 14:00 EST by Alex Afanasyev
Modified: 2012-03-21 13:54 EDT (History)
2 users (show)

See Also:

Patch (1.62 KB, patch)
2012-01-03 14:01 EST, Alex Afanasyev
Details | Diff

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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 ***