diff options
Diffstat (limited to 'net/sched/Kconfig')
| -rw-r--r-- | net/sched/Kconfig | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/net/sched/Kconfig b/net/sched/Kconfig index 7bac249258e3..59d3e71f8b85 100644 --- a/net/sched/Kconfig +++ b/net/sched/Kconfig @@ -1,6 +1,43 @@ # # Traffic control configuration. # + +menuconfig NET_SCHED + bool "QoS and/or fair queueing" + ---help--- + When the kernel has several packets to send out over a network + device, it has to decide which ones to send first, which ones to + delay, and which ones to drop. This is the job of the packet + scheduler, and several different algorithms for how to do this + "fairly" have been proposed. + + If you say N here, you will get the standard packet scheduler, which + is a FIFO (first come, first served). If you say Y here, you will be + able to choose from among several alternative algorithms which can + then be attached to different network devices. This is useful for + example if some of your network devices are real time devices that + need a certain minimum data flow rate, or if you need to limit the + maximum data flow rate for traffic which matches specified criteria. + This code is considered to be experimental. + + To administer these schedulers, you'll need the user-level utilities + from the package iproute2+tc at <ftp://ftp.tux.org/pub/net/ip-routing/>. + That package also contains some documentation; for more, check out + <http://snafu.freedom.org/linux2.2/iproute-notes.html>. + + This Quality of Service (QoS) support will enable you to use + Differentiated Services (diffserv) and Resource Reservation Protocol + (RSVP) on your Linux router if you also say Y to "QoS support", + "Packet classifier API" and to some classifiers below. Documentation + and software is at <http://diffserv.sourceforge.net/>. + + If you say Y here and to "/proc file system" below, you will be able + to read status information about packet schedulers from the file + /proc/net/psched. + + The available schedulers are listed in the following questions; you + can say Y to as many as you like. If unsure, say N now. + choice prompt "Packet scheduler clock source" depends on NET_SCHED |