<div dir="ltr"><p class="MsoNormal">Hi All,<span></span></p>
<p class="MsoNormal"> Good
Day,<span></span></p>
<p class="MsoNormal"> I’m using
opensips V1.11.5-TLS and facing a problem with Zero Window.<span></span></p>
<p class="MsoNormal"> Here’s
the scenario :<span></span></p>
<p class="MsoNormal"> NOTIFY<span></span></p>
<p class="MsoNormal" style="text-indent:0.5in">Opensips client
---------------------------<span style="font-family:Wingdings">à</span>
App server<span></span></p>
<p class="MsoNormal" style="text-indent:0.5in"> 200
OK<span></span></p>
<p class="MsoNormal" style="text-indent:0.5in">Opensips <span style="font-family:Wingdings">ß</span>----------------------------
App Server<span></span></p>
<p class="MsoNormal" style="text-indent:0.5in"><span> </span></p>
<p class="MsoNormal" style="text-indent:0.5in">Now lets assume this<span></span></p>
<p class="MsoNormal"> NOTIFY<span></span></p>
<p class="MsoNormal" style="text-indent:0.5in">Opensips client
---------------------------<span style="font-family:Wingdings">à</span>
App server<span></span></p>
<p class="MsoNormal"> NOTIFY<span></span></p>
<p class="MsoNormal" style="text-indent:0.5in">Opensips client
---------------------------<span style="font-family:Wingdings">à</span>
App server<span></span></p>
<p class="MsoNormal"> NOTIFY<span></span></p>
<p class="MsoNormal" style="text-indent:0.5in">Opensips client
---------------------------<span style="font-family:Wingdings">à</span>
App server<span></span></p>
<p class="MsoNormal"> NOTIFY<span></span></p>
<p class="MsoNormal" style="text-indent:0.5in">Opensips client
---------------------------<span style="font-family:Wingdings">à</span>
App server<span></span></p>
<p class="MsoNormal"> NOTIFY<span></span></p>
<p class="MsoNormal" style="text-indent:0.5in">Opensips client
---------------------------<span style="font-family:Wingdings">à</span>
App server<span></span></p>
<p class="MsoNormal"> NOTIFY<span></span></p>
<p class="MsoNormal" style="text-indent:0.5in">Opensips client
---------------------------<span style="font-family:Wingdings">à</span>
App server<span></span></p>
<p class="MsoNormal"> NOTIFY<span></span></p>
<p class="MsoNormal" style="text-indent:0.5in">Opensips client
---------------------------<span style="font-family:Wingdings">à</span>
App server<span></span></p>
<p class="MsoNormal" style="text-indent:0.5in"> 200
OK|200 ok | 200 ok | 200 ok<span></span></p>
<p class="MsoNormal" style="text-indent:0.5in">Opensips <span style="font-family:Wingdings">ß</span>----------------------------
App Server<span></span></p>
<p class="MsoNormal" style="text-indent:0.5in"><span> </span></p>
<p class="MsoNormal" style="text-indent:0.5in">Assuming the size of response if
5000 bytes.<span></span></p>
<p class="MsoNormal" style="text-indent:0.5in">tcp_main detects data in the buffer
and passes on to the child process to read the data from the buffer,<span></span></p>
<p class="MsoNormal" style="text-indent:0.5in">child(buffer size 65535 ) now reads
the data from the socket<span></span></p>
<p class="MsoNormal" style="text-indent:0.5in">tcp_read_req()<span></span></p>
<p class="gmail-MsoListParagraph" style="margin-left:1.25in">-<span style="font-variant-numeric:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times New Roman"">
</span><span style="color:black">tcp_read_headers()</span><span></span></p>
<p class="gmail-MsoListParagraph" style="margin-left:1.25in">-<span style="font-variant-numeric:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times New Roman"">
</span><span style="color:black">Loops until all the
sip messages are extracted and forwarded/processed</span><span></span></p>
<p class="gmail-MsoListParagraph" style="margin-left:1.25in">-<span style="font-variant-numeric:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times New Roman"">
</span><span style="color:black">Releases the
connection to tcp_main</span><span></span></p>
<p class="MsoNormal"><span> </span></p>
<p class="MsoNormal" style="margin-left:0.5in">Tcp_main attaches to IO<span></span></p>
<p class="MsoNormal" style="margin-left:0.5in"><span> </span></p>
<p class="MsoNormal" style="margin-left:0.5in">During the timer interval where system reads the data from the socket and
process the data there would be new data
pipelined in the socket, this gradually results in Zero window <span style="font-family:Wingdings">L</span> <span></span></p>
<p class="MsoNormal" style="margin-left:0.5in">Would like to know if there’s a way
to process the next available data on the socket once its been read.Thank you
for your time <span style="font-family:Wingdings">J</span></p><p class="MsoNormal" style="margin-left:0.5in"><br></p><p class="MsoNormal" style="margin-left:0.5in"><br></p><p class="MsoNormal" style="margin-left:0.5in">Regards,</p><p class="MsoNormal" style="margin-left:0.5in">Ravitez.D</p></div>