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[lwip-devel] [task #14128] Appropriate byte counting/stretch ACK support

From: Simon Goldschmidt
Subject: [lwip-devel] [task #14128] Appropriate byte counting/stretch ACK support
Date: Tue, 14 Mar 2017 03:14:37 -0400 (EDT)
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36

Follow-up Comment #16, task #14128 (project lwip):

Hmm, seems to me that it would be good to have this enabled. Code size
increasement/slowdown is tiny, the only real downside is the added
'bytes_acked' member. But I'm OK with enabling this: otherwise, probably noone
would enable it and noone would get the performance benefits.

As to TCP_ABC_LIMIT: does it really make sense to have this as an option in
opt.h? We'd have to limit it to 2 then (see chapter "Choosing the Limit") and
prevent 0.

Next, how is the part of "In this situation [RTO], a TCP MUST use L=1*SMSS"
handled if we allow configuring the limit to != 1.


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