| simple_traffic_shaping.xml (shorewall-docs-xml-5.2.7.tar.bz2) | : | simple_traffic_shaping.xml (shorewall-docs-xml-5.2.8.tar.bz2) |
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| | |
| skipping to change at line 96 | | skipping to change at line 96 |
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| for an external interface) or all traffic being sent | | for an external interface) or all traffic being sent |
| <emphasis>to</emphasis> a given IP address (internal interface).</para> | | <emphasis>to</emphasis> a given IP address (internal interface).</para> |
| | |
| <para>Finally, Simple Traffic Shaping allows you to set a limit on the | | <para>Finally, Simple Traffic Shaping allows you to set a limit on the |
| total bandwidth allowed out of an interface. It does this by inserting a | | total bandwidth allowed out of an interface. It does this by inserting a |
| Token Bucket Filter (tbf) qdisc ahead of the prio qdisc. Note that this | | Token Bucket Filter (tbf) qdisc ahead of the prio qdisc. Note that this |
| can have the effect of defeating the priority queuing provided by the prio | | can have the effect of defeating the priority queuing provided by the prio |
| qdisc but seems to provide a benefit when the actual link output | | qdisc but seems to provide a benefit when the actual link output |
| temporarily drops below the limit imposed by tbf or when tbf allows a | | temporarily drops below the limit imposed by tbf or when tbf allows a |
| burst of traffic to be released.</para> | | burst of traffic to be released.</para> |
|
| | |
| | <caution> |
| | <para>IPSec traffic passes through traffic shaping twice - once en clair |
| | and once encrypted and encapsulated. As a result, throughput may be |
| | significantly less than configured if IPSEC packets form a significant |
| | percentage of the traffic being shaped.</para> |
| | </caution> |
| </section> | | </section> |
| | |
| <section> | | <section> |
| <title>Enabling Simple Traffic Shaping</title> | | <title>Enabling Simple Traffic Shaping</title> |
| | |
| <para>Simple traffic shaping is enabled by setting TC_ENABLED=Simple in | | <para>Simple traffic shaping is enabled by setting TC_ENABLED=Simple in |
| <ulink url="manpages/shorewall.conf.html">shorewall.conf</ulink>(5). You | | <ulink url="manpages/shorewall.conf.html">shorewall.conf</ulink>(5). You |
| then add an entry for your external interface to <ulink | | then add an entry for your external interface to <ulink |
| url="manpages/shorewall-tcinterfaces.html">shorewall-tcinterfaces</ulink>(5) | | url="manpages/shorewall-tcinterfaces.html">shorewall-tcinterfaces</ulink>(5) |
| (<filename>/etc/shorewall/tcinterfaces</filename>).</para> | | (<filename>/etc/shorewall/tcinterfaces</filename>).</para> |
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