Generic troubleshooting processes: Difference between revisions

Generic troubleshooting processes (view source)

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 === <u>TCP Zero window</u> ===
-For identifying application performance problems and/or server capacity issues, the “TCP Zero Window” graph is a very, very powerful instrument.
+For identifying application performance bottlenecks and/or server capacity issues, the “TCP Zero Window” graph is a very, very powerful instrument.
 Here’s why…
-TCP zero window packets are being sent out by a client or (mostly) server, whenever it cannot optimally handle the oncoming traffic any more.
+TCP zero window packets are being sent out by a server (or client), whenever it cannot optimally handle the oncoming traffic any more.
-Because of whatever reason, its receive buffer is full, and the device will start every sending party to slow down – by means of TCP zero packets.
+Basically the servers' (or clients') receive buffer gets full and so it will notify every sending party to slow down – by means of TCP zero packets.