mirror of https://github.com/tLDP/LDP
long-standing DocBook validation errors corrected (thanks to FEDERICO BOLELLI)
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@ -41,9 +41,11 @@
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<section id="qs-fifo">
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<section id="qs-fifo">
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<title>FIFO, First-In First-Out (&sch_pfifo; and &sch_bfifo;)</title>
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<title>FIFO, First-In First-Out (&sch_pfifo; and &sch_bfifo;)</title>
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<note>
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<note>
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<para>
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This is not the default qdisc on Linux interfaces. Be certain to see
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This is not the default qdisc on Linux interfaces. Be certain to see
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<xref linkend="qs-pfifo_fast"/> for the full details on the default
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<xref linkend="qs-pfifo_fast"/> for the full details on the default
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(&sch_pfifo_fast;) qdisc.
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(&sch_pfifo_fast;) qdisc.
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</para>
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</note>
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</note>
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<para>
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<para>
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The FIFO algorithm forms the basis for the default qdisc on all Linux
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The FIFO algorithm forms the basis for the default qdisc on all Linux
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@ -256,6 +256,7 @@
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any &linux-filter; could have a &linux-drop; action.
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any &linux-filter; could have a &linux-drop; action.
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</para>
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</para>
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<note>
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<note>
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<para>
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The only place in the Linux traffic control system where a packet can be
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The only place in the Linux traffic control system where a packet can be
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explicitly dropped is a policer. A policer can limit packets enqueued
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explicitly dropped is a policer. A policer can limit packets enqueued
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at a specific rate, or it can be configured to drop all traffic matching
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at a specific rate, or it can be configured to drop all traffic matching
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@ -268,6 +269,7 @@
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<command>police rate 1bps burst 1 action drop/drop</command>.
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<command>police rate 1bps burst 1 action drop/drop</command>.
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</para>
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</para>
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</footnote>.
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</footnote>.
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</para>
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</note>
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</note>
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<para>
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<para>
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There are, however, places within the traffic control system where a
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There are, however, places within the traffic control system where a
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@ -163,9 +163,11 @@
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Marking is a mechanism by which the packet is altered.
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Marking is a mechanism by which the packet is altered.
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</para>
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</para>
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<note>
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<note>
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<para>
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This is not &fwmark;. The &iptables; target &ipt-mark; and the
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This is not &fwmark;. The &iptables; target &ipt-mark; and the
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&ipchains; &ipc-mark; are used to modify packet metadata, not the packet
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&ipchains; &ipc-mark; are used to modify packet metadata, not the packet
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itself.
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itself.
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</para>
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</note>
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</note>
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<para>
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<para>
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Traffic control marking mechanisms install a DSCP on the packet
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Traffic control marking mechanisms install a DSCP on the packet
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@ -57,8 +57,8 @@
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<para>
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<para>
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<ulink url="http://opalsoft.net/qos/">General Quality of
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<ulink url="http://opalsoft.net/qos/">General Quality of
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Service docs</ulink> (<emphasis>Leonardo Balliache</emphasis>)
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Service docs</ulink> (<emphasis>Leonardo Balliache</emphasis>)
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<para>
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</para>
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</para>
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<para>
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There is a good deal of understandable and introductory documentation
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There is a good deal of understandable and introductory documentation
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on his site, and in particular has some excellent overview material.
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on his site, and in particular has some excellent overview material.
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See in particular, the detailed
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See in particular, the detailed
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@ -169,12 +169,14 @@
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Mercilessly snipped from the main page of the DiffServ site...
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Mercilessly snipped from the main page of the DiffServ site...
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</para>
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</para>
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<blockquote>
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<blockquote>
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<para>
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Differentiated Services (short: Diffserv) is an architecture for
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Differentiated Services (short: Diffserv) is an architecture for
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providing different types or levels of service for network traffic.
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providing different types or levels of service for network traffic.
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One key characteristic of Diffserv is that flows are aggregated in
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One key characteristic of Diffserv is that flows are aggregated in
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the network, so that core routers only need to distinguish a
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the network, so that core routers only need to distinguish a
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comparably small number of aggregated flows, even if those flows
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comparably small number of aggregated flows, even if those flows
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contain thousands or millions of individual flows.
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contain thousands or millions of individual flows.
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</para>
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</blockquote>
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</blockquote>
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</listitem>
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</listitem>
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</itemizedlist>
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</itemizedlist>
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@ -55,8 +55,10 @@
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sort of queue is a &sch_fifo;.
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sort of queue is a &sch_fifo;.
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</para>
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</para>
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<note>
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<note>
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<para>
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The default qdisc under Linux is the &link-sch_pfifo_fast;, which is
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The default qdisc under Linux is the &link-sch_pfifo_fast;, which is
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slightly more complex than the &link-sch_fifo;.
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slightly more complex than the &link-sch_fifo;.
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</para>
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</note>
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</note>
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<para>
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<para>
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There are examples of queues in all sorts of software. The queue is a
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There are examples of queues in all sorts of software. The queue is a
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