altq man page on GhostBSD

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ALTQ(4)			 BSD Kernel Interfaces Manual		       ALTQ(4)

NAME
     ALTQ — alternate queuing of network packets

SYNOPSIS
     options ALTQ

     options ALTQ_CBQ
     options ALTQ_RED
     options ALTQ_RIO
     options ALTQ_HFSC
     options ALTQ_CDNR
     options ALTQ_PRIQ

DESCRIPTION
     The ALTQ framework provides several disciplines for queuing outgoing net‐
     work packets.  This is done by modifications to the interface packet
     queues.  See altq(9) for details.

     The user interface for ALTQ is implemented by the pfctl(8) utility, so
     please refer to the pfctl(8) and the pf.conf(5) manpages for a complete
     description of the ALTQ capabilities and how to use it.

   Kernel Options
     The following options in the kernel configuration file are related to
     ALTQ operation:

     ALTQ	 Enable ALTQ.
     ALTQ_CBQ	 Build the “Class Based Queuing” discipline.
     ALTQ_RED	 Build the “Random Early Detection” extension.
     ALTQ_RIO	 Build “Random Early Drop” for input and output.
     ALTQ_HFSC	 Build the “Hierarchical Packet Scheduler” discipline.
     ALTQ_CDNR	 Build the traffic conditioner.	 This option is meaningless at
		 the moment as the conditioner is not used by any of the
		 available disciplines or consumers.
     ALTQ_PRIQ	 Build the “Priority Queuing” discipline.
     ALTQ_NOPCC	 Required if the TSC is unusable.
     ALTQ_DEBUG	 Enable additional debugging facilities.

     Note that ALTQ-disciplines cannot be loaded as kernel modules.  In order
     to use a certain discipline you have to build it into a custom kernel.
     The pf(4) interface, that is required for the configuration process of
     ALTQ can be loaded as a module.

SUPPORTED DEVICES
     The driver modifications described in altq(9) are required to use a cer‐
     tain network card with ALTQ.  They have been applied to the following
     hardware drivers: age(4), alc(4), ale(4), an(4), ath(4), aue(4), bce(4),
     bfe(4), bge(4), cas(4), dc(4), de(4), ed(4), em(4), ep(4), epair(4),
     fxp(4), gem(4), hme(4), ipw(4), iwi(4), jme(4), le(4), msk(4), mxge(4),
     my(4), nfe(4), nge(4), npe(4), nve(4), ral(4), re(4), rl(4), rum(4),
     sf(4), sge(4), sis(4), sk(4), ste(4), stge(4), txp(4), udav(4), ural(4),
     vge(4), vr(4), wi(4), and xl(4).

     The ndis(4) framework also has support for ALTQ and thus all encapsulated
     drivers.

     The tun(4) and ng_iface(4) pseudo drivers also do support ALTQ.

SEE ALSO
     pf(4), pf.conf(5), ipfw(8), pfctl(8), altq(9)

BSD				April 14, 2010				   BSD
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