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@@ -960,4 +960,11 @@
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" when aria2 exits.")
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#define TEXT_DSCP \
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_(" --dscp=DSCP Set DSCP value in outgoing IP packets of\n" \
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- " BitTorrent traffic for QoS.")
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+ " BitTorrent traffic for QoS. This parameter sets\n" \
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+ " only DSCP bits in TOS field of IP packets,\n" \
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+ " not the whole field. If you take values\n" \
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+ " from /usr/include/netinet/ip.h divide them by 4\n" \
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+ " (otherwise values would be incorrect, e.g. your CS1\n" \
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+ " class would turn into CS4). If you are take commonly\n" \
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+ " used values from RFC, network vendors' documentation,\n" \
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+ " Wikipedia or any other source, use them as they are.")
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