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[lwip-devel] [bug #20515] TCP delyed ack does not work as expected


From: Simon Goldschmidt
Subject: [lwip-devel] [bug #20515] TCP delyed ack does not work as expected
Date: Wed, 18 Jul 2007 18:46:52 +0000
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.8.1.5) Gecko/20070713 Firefox/2.0.0.5

URL:
  <http://savannah.nongnu.org/bugs/?20515>

                 Summary: TCP delyed ack does not work as expected
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: goldsimon
            Submitted on: Mittwoch 18.07.2007 um 18:46
                Category: TCP
                Severity: 2 - Minor
              Item Group: Change Request
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: 

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Details:

On a full-streaming connection (i.e. sending only MSS-size packets, e.g. a
good FTP connection), other stacks (I know...) send an ACK with every second
packet, while lwIP sends an ACK with _every_ packet (if the rcv_wnd is >
TCP_WND/2).

In my opinion, this should be changed.

The solution would be to change the if clause that calls tcp_ack_now() in
tcp_recved().




    _______________________________________________________

Reply to this item at:

  <http://savannah.nongnu.org/bugs/?20515>

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