Global settings: Difference between revisions

Global settings (view source)

922 bytes added , 10 November 2021

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 This slider allows to configure the amount of memory which is used to buffer received packets. A larger amount of ingress packet memory may help in processing bursts of high bandwidth traffic without packet drops but it also decreases the amount of memory available for statistics. It is important to know that a restart of the processing does not suffice to make changes to this setting active. A full reboot of the device is required for that. See [[Performance Optimization Guide]].
+=== Jumbo frame mode ===
+This options allows to set how jumbo frames are handled by the system.
+Three settings are available and the '''normal''' mode, which is also the default, is the mode that was used before this configuration option was introduced:
+* '''Normal''': the default mode offers the best balance of full support for jumbo frames with an efficient usage of the ingress packet memory. This mode uses efficiently sized packet buffers and splits larger packets over multiple packet buffers.
+* '''Large buffers''': this mode uses a single large buffer for each packet which may improve the performance but does not use the ingress packet memory as efficiently and limits the maximum jumbo frame size to 9kB.
+* '''Disabled''': this mode disables support for jumbo frames and offers the best performance and efficient usage of the ingress packet memory. Jumbo frames will be discarded by the network interface.