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Pokud to dobre davam zpetne, tak to souvisi s tim delay ACK.
Prijimaci strana pokud ma pocit, ze odesilaci nereagovala na ACK,
tak jej posle znovu. S tim jsem se setkal, ze nestacilo tech 200ms a
chodili mi dalsi packety navic, zdrzovalo to. Nebyl jen jeden a az
pote nasledoval delsi timeout. Ono to je docela logicke, pokud
chcete rychli prenos, tak kdyz se Vam ztrati jeden packet, tak
musite ihned zareagovat a necekat dlouho.<br>
Detail bych musel nekde prohrabat, oni ty zakladni poucky o TCP jsou
pekne ... .<br>
Jirka<br>
<p><br>
</p>
Dne 9. 5. 2016 v 16:37 Slavomir Skopalik napsal(a):<br>
<blockquote
cite="mid:0a13da3a-8b42-dfd2-4295-3e07d70d3c9e@elektlabs.cz"
type="cite">
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<p>Dobry den,</p>
<p>ale jak vyzve/upozorni?</p>
<p>Tj. jaky posle paket?<br>
</p>
<p>Slavek<br>
</p>
<pre class="moz-signature" cols="72">Ing. Slavomir Skopalik
Executive Head
Elekt Labs s.r.o.
Collection and evaluation of data from machines and laboratories
by means of system MASA (<a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://www.elektlabs.cz/m2demo">http://www.elektlabs.cz/m2demo</a>)
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Address:
Elekt Labs s.r.o.
Chaloupky 158
783 72 Velky Tynec
Czech Republic
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</pre>
<div class="moz-cite-prefix">On 9.5.2016 16:35, Jiří Nesvačil
wrote:<br>
</div>
<blockquote
cite="mid:3606182b-fedb-5831-97a6-8007e9b4180b@posys.cz"
type="cite">Na Api rozhrani nic nepoznate, to si doufam
rozumime. <br>
<br>
TCP je roura, takze prijimaci strana precte data a pozada o
dalsi. Ona nevi kolik. Prijimaci roura posle potvrzeni o prijeti
ACK a ceka, ze odesilaci strana posle dalsi data, pokud neposle,
tak upozorni a to jsou ty packety navic. Tam je trosku zakopano
v tech timeoutech. <br>
<br>
Jen upozornuji, ze roura je obousmerna tj. vse je x2. <br>
<br>
<a moz-do-not-send="true" class="moz-txt-link-freetext"
href="http://packetlife.net/blog/2010/jun/7/understanding-tcp-sequence-acknowledgment-numbers/">http://packetlife.net/blog/2010/jun/7/understanding-tcp-sequence-acknowledgment-numbers/</a>
<br>
<br>
Jirka <br>
<br>
</blockquote>
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