Ubuntu Feisty 7.04 manual page repository

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      ALTQ - alternate queuing of network packets


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


      The ALTQ framework provides several disciplines for queuing outgoing net‐
      work packets.  This is done by modifications to the interface packet
altq(9) for details.
pfctl(8) utility, so
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 for SMP builds.
      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.
pf(4) interface, that is required for the configuration process of
      ALTQ can be loaded as a module.
altq(9) are required to use a cer‐
      tain network card with ALTQ.  They have been applied to the following
ndis(4) framework also has support for ALTQ and thus all encapsulated
tun(4) pseudo driver also does support ALTQ and includes the required


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Ubuntu is an African word meaning 'Humanity to others', or 'I am what I am because of who we all are'. The Ubuntu distribution brings the spirit of Ubuntu to the software world.