Ubuntu Feisty 7.04 manual page repository
Ubuntu is a free computer operating system based on the Linux kernel. Many IT companies, like DeployIS is using it to provide an up-to-date, stable operating system.
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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 de(4), sk(4), xl(4). ndis(4) framework also has support for ALTQ and thus all encapsulated drivers. tun(4) pseudo driver also does support ALTQ and includes the required modifications. altq(9)