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Status: Verified (1)

RFC 3742, "Limited Slow-Start for TCP with Large Congestion Windows", March 2004

Source of RFC: tsvwg (tsv)

Errata ID: 236
Status: Verified
Type: Editorial

Reported By: Sally Floyd
Date Reported: 2005-06-08

Section 2 says:

   the invariant is maintained so that the congestion window is
   increased during slow-start by at most max_ssthresh/2 MSS per round-
   trip time. 

It should say:

   the invariant is maintained that the congestion window is
   increased during slow-start by at most max_ssthresh MSS per
   round-trip time (and at least max_ssthresh/2 MSS per round-trip
   time).

Notes:


Later in Section 2:
it
takes:

log(max_ssthresh) + (cwnd - max_ssthresh)/(max_ssthresh/2)

round-trip times to reach a congestion window of cwnd, for a
congestion window greater than max_ssthresh.
Should be:
it
takes at least:

log(max_ssthresh) + (cwnd - max_ssthresh)/(max_ssthresh)

and at most:

log(max_ssthresh) + (cwnd - max_ssthresh)/(max_ssthresh/2)

round-trip times to reach a congestion window of cwnd, for a
congestion window greater than max_ssthresh.

Later in Section 2:
Thus, with Limited Slow-Start with max_ssthresh set to 100 MSS, it
would take 836 round-trip times to reach a congestion window of
83,000 packets,
Should be:
Thus, with Limited Slow-Start with max_ssthresh set to 100 MSS, it
would take at least 836 round-trip times to reach a congestion window of
83,000 packets,

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