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iSo in doing final checks on OCA firmware with all the latest tweaks the dup…

Description

iSo in doing final checks on OCA firmware with all the latest tweaks the dup-ack checking
packet drill script was failing with a number of unexpected acks. So it turns
out if you have the default recvwin set up to 1Meg (like OCA's do) and you
have no window scaling (like the dupack checking code) then we have another
case where we are always trying to update the rwnd and sending an
ack when we should not.

Sponsored by: Netflix Inc.
Differential Revision: https://reviews.freebsd.org/D25298

Details

Provenance
rrsAuthored on
Differential Revision
D25298: More rwnd issues with rack and bbr
Parents
rS362233: newsyslog(8): make configuration parser more robust.
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