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[lwip-devel] [bug #50476] active open, ssthresh is really low with auto-

From: Joel Cunningham
Subject: [lwip-devel] [bug #50476] active open, ssthresh is really low with auto-tuning receiver
Date: Tue, 7 Mar 2017 22:19:52 -0500 (EST)
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:51.0) Gecko/20100101 Firefox/51.0

Follow-up Comment #6, bug #50476 (project lwip):

Attached patch initializes ssthresh in tcp_alloc() and then removes all other
initialize calls.  This seemed simplest rather than  having an assignment in
both active open and passive open logic

Also, I re-read RFC 5681 section 3.1 and my understanding is that the guidance
is to set ssthresh arbitrarily high. The RFC provides an example of using the
largest advertised receive window, but that's not required.  Thus, using
TCP_SND_BUF (LwIP's largest effect cwnd) is well within that guidance :)

(file #39932)

Additional Item Attachment:

File name: 0001-bug-50476-initialize-ssthresh-to-TCP_SND_BUF.patch Size:3 KB


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