RFC Errata
Found 2 records.
Status: Verified (2)
RFC 3390, "Increasing TCP's Initial Window", October 2002
Source of RFC: tsvwg (wit)
Errata ID: 4569
Status: Verified
Type: Technical
Publication Format(s) : TEXT
Reported By: Nikolai Malykh
Date Reported: 2015-12-22
Verifier Name: Martin Stiemerling
Date Verified: 2016-01-12
Section 8.1 says:
A second set of experiments explored TCP performance over dialup modem links. In experiments over a 28.8 bps dialup channel [All97a, AHO98], a four-segment initial window decreased the transfer time of a 16KB file by roughly 10%, with no accompanying increase in the drop rate. A simulation study [RFC2416] investigated the effects of using a larger initial window on a host connected by a slow modem link and a router with a 3 packet buffer. The study concluded that for the scenario investigated, the use of larger initial windows was not harmful to TCP performance.
It should say:
A second set of experiments explored TCP performance over dialup modem links. In experiments over a 28.8 kbps dialup channel [All97a, AHO98], a four-segment initial window decreased the transfer time of a 16KB file by roughly 10%, with no accompanying increase in the drop rate. A simulation study [RFC2416] investigated the effects of using a larger initial window on a host connected by a slow modem link and a router with a 3 packet buffer. The study concluded that for the scenario investigated, the use of larger initial windows was not harmful to TCP performance.
Notes:
Error bit rate - kbps instead of bps.
Errata ID: 4583
Status: Verified
Type: Technical
Publication Format(s) : TEXT
Reported By: Joe Touch
Date Reported: 2016-01-06
Verifier Name: Martin Stiemerling
Date Verified: 2016-04-03
Section 1. says:
This increased initial window is optional: a TCP MAY start with a larger initial window. However, we expect that most general-purpose TCP implementations would choose to use the larger initial congestion window given in equation (1) above.
It should say:
This increased initial window is optional: a TCP MAY start with a smaller initial window. However, we expect that most general-purpose TCP implementations would choose to use the larger initial congestion window given in equation (1) above.
Notes:
The MAY allows use of values smaller than this document allows, not larger.