Date: Tue, 18 Jul 2017 23:28:27 +0530 From: KVK Singh <krishnavijay@mnnit.ac.in> To: freebsd-net@freebsd.org Subject: TCP Zero Window Advertisement. Message-ID: <CA%2BdH1tBpiTbrbWrS2BXnPb5a8_amHkPyst1GCfawdKOrTpp-kw@mail.gmail.com>
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Hi, By going through the Zero Window advertisement concept What I found is that if sender has transmitted packet 2,3,4,5,6,7 i.e packet from 2-7 total 6 packets in flight then By chance if sender received a Zero Window Advertisement (ZWA) for segment 4 then it does not enters in probe mode/ persistent state. However if it receive ZWA for 7 i.e last packet in flight then it enters in Probe mode/ persistent state and it starts probing for window update. Is that the behavior is correct Because as going through the paper and RFC I find that any segment can be acked with ZWA and sender will enter in persist mode once it receive the ZWA. Please resolve my query. Thanks and regards.home | help
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